T336CxNxNDx V17

TAINET
MODEM
T-336Cx/Nx/NDx
User Manual
T h e P r o fessio n a l P a r t n er
TAINET COMMUNICATION SYSTEM CORP.
Headquarters: Beijing Branch:
No. 25, Alley 15, Lane 120, 3F, A Building, 113 Zhi Chun Lu,
Sec. 1. Nei-Hu Rd, HaiDian District, Beijing, China
Taipei 114, Taiwan Zip Code: 100086
TEL: 886-2-26583000 TEL: 86-10-62522081~87
FAX: 886-2-26583232 FAX: 86- 10-62522077
V1.7 07008-00027 2004/11/15

Contents
CHAPTER 1： TAINET MODEM INTRODUCTION ....................................2
1.1 Description ..........................................................................................................2
1.2 Technical Specifications .....................................................................................3
1.3 Ordering Information .........................................................................................7
CHAPTER 2: INSTALLATION ..................................................................................10
2.1 Description ..........................................................................................................10
2.2 Unpacking ...........................................................................................................10
2.3 Site Requirements ...............................................................................................10
2.4 Site Selection.......................................................................................................11
2.5 AC Electrical Outlet Connection ........................................................................11
2.6 Connecting With Dial Line .................................................................................12
2.7 Connecting With Leased Line.............................................................................13
CHAPTER 3 : FRONT PANEL AND MENU TREE .............................................16
3.1 The Front Panel Description ...............................................................................16
3.2 The Rear Panel Description.................................................................................16
3.3 Operating the TAINET Network Series Modem ................................................17
3.4 The Menu Tree ....................................................................................................19
3.5 Detailed Description of the Menu Tree...............................................................23
3.5.1 STATUS MENU ....................................................................23
3.5.2 DIAL MENU ..........................................................................25
3.5.3 PROTOCOL MENU...............................................................26
3.5.4 TEST MENU ..........................................................................27
3.5.5 CONFIG MODEM MENU ....................................................28
3.5.6 CONFIG DTE MENU ............................................................30
3.5.7 COMMAND MENU ..............................................................32
3.5.8 LINE SETUP MENU .............................................................33
3.5.9 PROFILE MENU....................................................................34
CHAPTER 4: GENERAL INFORMATION AND FEATURES ........................38
4.1 Preview................................................................................................................38
4.2 Dial Line VS. Leased Line ..................................................................................38
4.3 2W/4W Leased Line............................................................................................39
4.4 Answer Mode VS. Originate Mode.....................................................................39
4.5 Synchronous VS. Asynchronous .........................................................................40
4.6 Error Correction And Data Compression............................................................40
4.7 Configuration Profile Set-Up ..............................................................................41
4.8 Remote Access .....................................................................................................41
4.9 Multi-standard Handshake ..................................................................................41
4.10 Auto Dial Back-Up............................................................................................42
4.11 Auto Fallback And Fall Forward ......................................................................42
4.12 Line Status Monitoring......................................................................................42
4.13 B.E.R Test .........................................................................................................43
4.14 Intelligent Dial...................................................................................................43
4.15 Front Panel Lock and Password Protect............................................................43
4.16 ITU-T V.13/ V.23 Simulated Carrier Control in Half Duplex..........................44
4.17 PASSWORD AND CALLBACK FUNCTIONS..............................................44
4.17.1 Dynamic Password/CallBack: ............................................................44
4.17.2 Extension Code for Stored Phone Numbers
i
(‘+’+<char>):..................................................................................................44
4.17.3 Additional Information:......................................................................44
4.18 Intelligent Dial Polling ......................................................................................45
CHAPTER 5 : INSTRUCTION SETS ......................................................................47
5.1 AT Command Set................................................................................................47
5.2 Dial Modifiers .....................................................................................................53
5.3 Result Codes........................................................................................................54
5.4 V.25bis Auto call Unit ........................................................................................56
CHAPTER 6 : MAINTENANCE..............................................................................58
6.1 Description ..........................................................................................................58
6.2 Instruments ..........................................................................................................58
6.3 Periodic Maintenance..........................................................................................58
6.4 Troubleshooting ..................................................................................................58
6.5 Return Procedures ...............................................................................................58
APPENDIX 1: T-336Cx S-REGISTER TABLE...................................................................59
APPENDIX 2: T-336Cx LCD MENU QUICK REFERENCE ............................................67
APPENDIX 3:T-336Nx LCD MENU QUICK REFERENCE .............................................68
ii
INFORMATION TO THE USER
NOTE: This equipment has been tested and found to comply with the limits for a
Class A digital device. Pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and if not installed and used in
accordance with the instructions may cause harmful interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on.
The user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
This booklet is available from the US government Printing Office, Washington, DC

20402, Stock NO. 004-000-00345-4.
The shielded RS-232 cable is to be used in order to ensure compliance with FCC Part
15, and it is the responsibility of the user to provide and use shielded RS-232 cable
from MODEM to personal computer.
CAUTION: Any changes of modifications not expressly approved by the grantee of

this device could void the user's authority to operate the equipment.
iii
FCC REQUIREMENTS
This equipment complies with Part 68 of the FCC Rules. On the base unit of this
equipment is a label that contains, among other information, the FCC Registration
Number and Ringer Equivalence Number (REN) for this equipment. IF REQUESTED,
THIS INFORMATION MUST BE GIVEN TO THE TELEPHONE COMPANY.
The REN is useful to determine the quantity of devices you may connect to your
telephone line and still have all of those devices ring when your telephone number is
called. In most, but not all areas, the sum of the REN's of all devices connected to one
line should not exceed five (5.0). To be certain of the number of devices you may
connect to your line, as determined by the REN you should contact your local
telephone company to determine the maximum REN to your calling area.
If your equipment causes harm to the telephone network, the telephone company may
discontinue your service temporarily. If possible, they will notify you in advance. But
the advance notice isn't practical, you will be notified as soon as possible. You will be
informed of your right to file a complaint with the FCC. Your telephone company may
make changes in its facilities, equipment, operations or procedures that could affect
the proper functioning of your equipment. If they do, you will be notified in advance
to give you an opportunity to maintain uninterrupted telephone service.
If you experience trouble with this telephone equipment, please contact the following
address and phone number for information on obtaining service or repairs.
The telephone company may ask that you disconnect this equipment from the network
until the problem has been corrected or until you are sure that the equipment is not
malfunctioning.
This equipment may not be used on coin service provided by the telephone company.
Connection to party lines is subject to state tariffs.
COMPANY: SUMMIT MICRO DESIGN, INC.

ADDRESS: 485 MACARA AVE., SUITE 901 SUNNYVALE, CA 94086 USA
TEL NO: (408)739-6348
iv
CHAPTER 1： TAINET MODEM INTRODUCTION
Chapter 1
TAINET MODEM INTRODUCTION
1.1 Description
1.2 Technical Specifications
1.3 Ordering Information
1
1.1 Description
• The TAINET Network Series Modem T-336Cx/Nx/NDx are high performance,

synchronous and asynchronous, full duplex multi-standard modems designed for
use on 2-wire dial circuits and 2/4 wire leased lines.
The MODEM series fully comply with ITU-T V.34、V.32bis/V.32、 V.22bis、
V.22、V.23、V.21 and BELL 212A/103，speed: 115200 - 300bps Asynch，
33600 - 1200bps Synchronization。
In V.34 and V.32bis/ V.32 modes, echo concellation provides 2-wire full
duplex operation over all PSTN circuits including those with satellite sections.
Compatibility is also provided with Bell 212A and Bell 103 operating standard.
• V.34 mode provide full duplex operation at up to 33.6 kbps speed, with line
probing, symbol rate and carrier frequency selection technologies.
• V.34 mode also use other advance technologies such as Adaptive Precoding, Non-
Linear Encoding (Warping), Constellation Expansion, Multidimensional Trellis
coding and Shell Mapping ,Tx power back off(Power Reduction).
• There are 10 factory default profiles and 10 user's profiles for your easiest
configuration setting.
• Allow up to 16 modem cards (T-336Nx) with 16 port on a rack shelf (TRS-16).
• Allow up to 16 modem cards (T-336NDx), with 32 port on a rock shelf (TRS-32).
• A 2 by 16 characters LCD display on the front panel with back lighted control for
configuration set-up and monitoring conveniently.
• Line status monitoring including transmit/receive signal level, S/N ratio, EQM (eye
quality monitoring), signal quality, frequency shift, delay, echo, retrain count,
phase jitter, Tx/Rx baud rate, Tx/Rx carrier frequency, Tx/Rx DCE speed, TX
power back-off ..., etc.
• Front panel lock and password protect features prevents from the operation of
unauthorized person.
• Enable remote configuration through secondary channel.
• V.13& V.23 simulated carrier control for half duplex application.
• 2 wires or 4wires automatic or manual dial back-up and restore.
2
1.2 Technical Specifications
T-336Cx/Nx/NDx fully comply with ITU-T recommendations V.34, V.32bis, V.32,

V.22bis, V.22, V.21, V.23, V.24, V.26bis,V.28, V.25, V.25bis, V.52, V.54, V.42,
V.42bis, V.8, and BELL 212A/103 operating standards.
• Modulation type : Refer to table 1-1A,1-1B.
• Clock tolerance
(1) Synchronous : ± 0.01%
(2) Asynchronous : Basic range + 1% to - 2.5%
Extended overspeed range + 2.3% to - 2.5%
• DTE speed
(1) Synchronous : 33600/31200/28800/26400/24000/21600/19200/16800
/14400/12000/9600/7200/4800/2400/1200 bps
(2) Asynchronous :
115200/76800/57600/38400/33600/32000/31200/28800/
26400/24000/21600/19200/16800/14400/12000/9600/7200
/4800/3600/2400/1200/600/300 bps with speed conversion.
Total bit length : 8, 9, 10, 11 bits
Parity bit : odd, even, none
Stop bit : 1, 1.5, 2 bits
• Error Correction : MNP 4/ITU-T V.42
• Data Compression : MNP 5/ITU-T V.42bis
• Flow Control : HArdware CTS/RTS, CTS only
Software X-ON/X-OFF
• Dial Command : Extended AT and ITU-T V.25bis command set.
3
Table 1-1A : Modem operating mode (4 wires/2wires L-L or D-L)
Operating Mode MOD. Carrier Symbol Constellation

rate points
V.34+ 33600 SM (Table 1-1c) (Table 1-1c) 4 to 1024
V.34+ 31200 SM Depends on the
combination of
V.34 28800 SM
data rate,
V.34 26400 SM symbol rate and
V.34 24000 SM constellation
V.34 21600 SM expansion
chosen.
V.34 19200 SM
V.34 16800 SM
V.34 14400 SM
V.34 12000 SM
V.34 9600 SM
V.34 7200 SM
V.34 4800 SM
V.34 2400 SM
V.32bis 14400 T TCM 1800 2400 128

V.32bis 12000 T TCM 1800 2400 64
V.32 9600 T TCM 1800 2400 32
V.32 9600 QAM 1800 2400 16
V.32bis 7200 T TCM 1800 2400 16
V.32 4800 QAM 1800 2400 4
V.26bis 2400 DPSK 1800 1200 4
V.26bis 1200 DPSK 1800 1200 4
V.22bis 2400 QAM 1200/2400 600 16
V.22 1200 DPSK 1200/2400 600 4
V.23 1200/75 FSK 1700/420 1200 N/A
V.21 0-300 FSK 1080/1750 300 N/A
BELL 212A 1200 DPSK 1200/2400 600 4
BELL 103 0-300 FSK 1175/2125 300 N/A
4
Table 1-1B : V.34 Symbol Rate and Carrier Frequency
Symbol Rate (Baud) Low Carrier (Hz) High Carrier (Hz)

2400 1600 1800
3000 1800 2000
3200 1829 1920
3429 1959 1959
• Transmit Level Lease-Line: 0~-31 dBm 1 dB stepadjustable.

Dial-Line: 0~-15 dBm 1 dB step adjustable.
• Line requirement : ４/２ wires L-L or D-L
• Line Impedenance : Balance 600Ω ± 10 %

• Return Loss :> 20 dB, 300 - 3400 Hz
• Longitude Balance :> 60 dB
• Dial Line Characteristics:
Maximum Current :120 mA

Holding Resistance : 50 ~ 220 Ω
Holding Current : 25 ~ 110 mA
Ring Detect Range : ON - > 27 Vrms
OFF - < 13 Vrms
Ring Detect Frequency : 16 - 50 Hz
DTMF Characteristics : O/P Lowband -8 ± 1 dBm
O/P Highband -6 ± 1 dBm
Frequency Tolerance ≤ ± 1 %
TONE Duration and Spacing 95 ms (adjustable)
Pulse Per Sec : 10 ± 0.5 PPS
Make/Break Ratio : 33/67, 39/61 ± 3 %
• Auto Answer : V.32bis/V.32/V.22bis/V.22 comply with ITU-T V.25 &

V.25bis
V.34 Comply with ITU-T V.8, V.25/V.25bis
Answer Tone : 2100±15Hz
• Calling Tone : Comply with ITU-T V.8, V.25
• Receive Range : -12 ~ -44 dBm, -2 ~ -35 dBm
• Dynamic Range : 0 ~ -44 dBm
• Equalization : Automatic Adaptive Equalizer
• Frequency Shift : Compensation cancel at least of ± 7Hz offset
5
• Far-end Echo Coverage : Maximum 1.2 seconds.
• Scrambler & Descrambler : Comply with ITU-T V.34,V.32bis,V.32,V.22bis, V.22
• Data And Control Signal : Output Voltage ± (6 ~ 12)V

(ITU-T V.28) Input Voltage ± (3 ~ 25)V
Output Impedance ≧ 330 Ω
Input Impedance 3000 ~ 7000 Ω
• Tx Clock Source : Internal/External/Loopback

Freq. Tolerance : ± 0.01 %
Duty Cycle : 50 ± 1 %
• Test Features : V.54/V.52 , LAL/DL/RDL

Test Patterns - 511
• Power Requirement : 90 ~ 265 VAC Auto Range, 47 ~ 63 Hz

DC Power Input : -36 ~ -72 VDC option(Chassis type)
• Operating Temperature : 0 °C ~ 50 °C
Storage Temperature : -25 °C ~ 70 °C
Relative Humidity : 95 % (non-condensing)
• Physical Size :
Stand alone Ö W - 180mm, H - 48mm, D - 262mm, Weight 0.9kg
Rack mount card Ö W - 220mm, H - 26mm, D - 328mm, Weight 0.6kg
Rack mount shelf Ö W - 19", H - 6RU, D - 380mm, Weight 8kg
Full shelf Equipped Ö Weight 16kg
• DTE Interface: EIA RS-232C, CCITT V.24/V.28
Pin V.24 DESCRIPTION Source

1 101 (PG) Protective Ground —
2 103 (TXD) Transmit Data DTE
3 104 (RXD) Receive Data MODEM
4 105 (RTS) Request To Send DTE
5 106 (CTS) Clear To Send MODEM
6 107 (DSR) Data Set Ready MODEM
7 102 (SG) Signal Ground —
8 109 (DCD) Data Carrier Detect MODEM
9 +12 VDC MODEM
10 -12 VDC MODEM
15 114 (TXC)Transmit Clock MODEM
17 115 (RXC) Receive Clock MODEM
18 141 (AL) Local Analog Loopback DTE
20 108 (DTR) Data Terminal Ready DTE
21 140 (RDL) Remote Digital Loopback DTE
22 125 (RING) Ring Detect MODEM
24 113 (XTC) External Clock DTE
25 142 (TST) Test Mode MODEM
6
1.3 Ordering Information
• T-336Cx Stand alone V.34 33.6kbps modem

• T-336Nx Rack-mounted V.34 33.6kbps modem card(TRS16)
• T-336NDx Rack-mounted V.34 33.6kbps modem card(TRS32)
• T-336Cx-t Stand alone V.34 33.6kbps modem
• T-336Nx-t Rack-mounted V.34 33.6kbps modem card(TRS16)
• T-336NDx-t Rack-mounted V.34 33.6kbps modem card(TRS32)
• NMC16 NMS Control unit(TRS16)
• NMC32 NMS Control unit(TRS32)
• TRS16 19inch rack (up to 16 modem card)
• TRS32 19inch rack (up to 32 modem card)
• PW-130AC 90 ~ 265 VAC 130W power unit for rack
• PW-130DC -36 ~ -72 VDC 130W power unit for rack
• PW-132A 90 ~ 265 VAC 130W power unit for rack
• PW-132D -36 ~ -72 VDC 130W power unit for rack
• A50 50 pin cable with standard centronic connector for (TRS32)
• TB32 The rear panel terminal block module board of the TRS32 for
2/4-wire Leased and Dial line connection
• TAINET MANAGER Network Management System
7
CHAPTER 2: INSTALLATION
CHAPTER 2
INSTALLATION
2.1 Description
2.2 Unpacking
2.3 Site Requirements
2.4 Site Selection
2.5 AC Electrical Outlet Connection
2.6 Connecting With Dial Line
2.7 Connecting With Leased Line
9
2.1 Description
This chapter provides the information needed to install the TAINET Network
Series Modem and to ensure that it is working properly. You may obtain more
information about this subject for rack-mount modem shelf from the User's Manual of
TAINET TRS16 or TRS32 rack-mount modem shelf.
2.2 Unpacking
Save the carton and protective packing material in which your TAINET Network
Series Modem was shipped; you might need them for repackaging if you have to store
or ship the modem in the future. The following items are shipped with your modem:
* One Modem User's Manual.
* One 7-feet (2.13m) modular telephone cable for connection to RJ45 8-pin
jack.or one site is RJ-45 and the other site is Ｕtype(option).
* One 7-feet (2.13m) modular telephone cable for connection to an RJ11 4-pin
jack.
* One 8-pin RJ-45 box for leased line application.
* One 6-feet power cord.
Rough handling during shipping causes most early modem failure; after you
unpack the modem, check carefully for shipping damage. Contact the shipper if you
notice any damage. Direct any additional questions about damaged or missing parts to
the nearest sales representative.
2.3 Site Requirements
The FCC requires telecommunications equipment to withstand electrical surges

which may result from lightning strikes; the TAINET Network Series Modem meet
the requirements set forth by the FCC. Make sure the electrical service in your
building is properly grounded as described in article 250 of the National Electrical
Code (NEC) handbook. The following procedure outlines some common practices
which can minimize the risk of damage to computer equipment from electrical surges:
* Verify that a good copper wire of the appropriate gauge, as described in Tables
250-94/95 of the NEC Handbook, is permanently connected between the
electrical service panel in the building and a proper grounding device such as:
1) A ground rod buried outside the building at least 8 feet (2.44 meters) deep in the
earth. Several ground rods, connected together, buried outside the building at
least 8 feet (2.44 meters) deep in the earth.
10
2) If you are unsure whether the electrical service in your building is properly
grounded, have it examined by your municipal electrical inspector.
3) Install a surge protector between the modem and AC power outlet. Any
additional computer equipment you have connected to the modem (directly or
through another device), such as a terminal or printer, should also be plugged
into the same surge protector. Make sure that the surge protector is properly rated
for the devices you have connected to it.
4) Call your telephone company and ask them if your telephone line is equipped
with a circuit surge protector.
5) If you are operating the modem in an area where the risk of electrical surges form
lightning is high, disconnect the modem form the telephone line at the modem's
rear panel when it is not in use.
2.4 Site Selection
Locate the TAINET Network Series Modem no farther than 50 feet (15.24 meters)
from your data terminal equipment (DTE) and within 6 feet (1.83 meters) of a
grounded AC outlet furnishing the required power. Install the modem in a clean area
that is free from environmental extremes. Allow at least 6 inch (15.24 cm) in front of
the modem for access to the front panel, and at least 4 inch (10.2 cm) in back for cable
clearance. Position the modem so you can easily see the front panel. Do not stack
another modem on top of TAINET modem.
For more detailed information on installation Modem Shelf TRS-16 and NMC-
16 installation, please refer the “TAINET Rack-Mounted Modem Shelf - TRS-16 or
TRS-32 User’s Manual”.
2.5 AC Electrical Outlet Connection
The power line associated with MODEM is about 2 meters, three pins plug.
Middle cylinder is for grounding. For power source adapting, an automatic switching
power supply (90 〜265VAC) is used for the device, the fuse for stand alone type is
2A, for rack-mount type is 4A. The rack-mount type is also capable for DC Source
Power Supply (option) and its voltage range is -36 ~ -72VDC.
11
2.6 Connecting With Dial Line
To connect your modem to a permissive RJ11 voice jack and dial line, follow
this procedure: On the rear panel of MODEM, there is an 8 pins RJ-45 jack used for
Leased Line, beside this, there are two RJ-11 6 pins jack, one is “DIAL LINE“ and the
other is "PHONE". Connect the “PHONE” jack to telephone set and then connect the
telephone line to "DIAL LINE" jack.
The pin layout of the “PHONE” connector for RJ11 operation is as follows:
Pin. Color “PHONE”pin defined

1 No Connect No Connect
2 Black Not used
3 Red Tip
4 Green Ring
5 Yellow Not used
The pin layout of the DIAL connector for RJ11 operation is as follows:
Pin. Color “Dial Line”pin defined

2 Black Not used
3 Red Tip
4 Green Ring
5 Yellow Not used
ON DTE
OFF PHONE LEASED DIAL
RJ11 RJ11
DIAL RED TELEPHONE
RJ11 modular telephone cable
LINE GRN
RJ11 modular telephone cable
BOX
Figure 2-1 Dial Line connecting diagram
12
2.7 Connecting With Leased Line
For the leased line connection, you should connect the lines RJ45 connector
labeled with "Leased" on the back of Modem:
Modem
Pin No. Color 2-Wire 4-Wire
1 Blue TX/RX TX
2 Orange TX/RX TX
Leased 3 Black RX
Line
4 Red TX/RX TX
5 Green TX/RX TX
6 Yellow RX
7 Brown RX
8 White (or Gray) RX
When it used RJ-45 8 core wire, pin 1, 2 is a group used for 2 wires leased line
application. it is TX for 4 wires leased line application. Pin 7,8 is another group, it is
no used in 2 wire leased line application, it is RX for 4 wires leased line application.
When it used RJ-11 4 core wire, pin 4, 5 is TX/RX for 2 wire leased line
application. If it is 4 wires leased line, the pin 4, 5 is TX, pin 3, 6 is RX.
When you connect two modems in "back-to-back" style, don't forget to
interchange TX and RX lines.
A-TX Ö B-RX, A-RX Ö B-TX
ON DTE
OFF PHONE LEASED DIAL
RJ11
TX/2W BLU RJ45
Leased TX/2W ORG Back-up Line

Line RX BWN ( If use dial back-up
RJ45 modular feature )
RX WTE telephone cable
BOX
or
RX BLK
Leased TX/2W RED
Line TX/2W GRN
RX YEW
BOX
Figure 2-2 Leased Line connecting diagram
13
CHAPTER 3 : FRONT PANEL AND MENU TREE
CHAPTER3
FRONT PANEL AND MENU TREE
3.1 The Front Panel Description
3.2 The Rear Panel Description
3.3 Operating the TAINET Network Series Modem
3.4 The Menu Tree
3.5 Detailed Description of the Menu Tree
15
3.1 The Front Panel Description
There are 5 key on the front panel of TAINET’s Modem (VO/DA Key, Right Key,
Left Key, ENTER Key and EXIT Key), one 2 x 16 LCD displayer and 10 LEDs.
Through these interfaces, users are able to see the status of modem or chang the
configurations as illustrated below:
Figure 3-1 TAINET T-336Cx Front Panel
3.2 The Rear Panel Description
The rear panel of TAINET T-336Cx modem contains an IEC 320 AC Power Inlet
Connector, a Power On/Off switch, a RS-232 connector (for connecting to DTE
Equipment), two RJ11 telephone jack (for connecting to dial line and telephone set),
and one RJ45 telephone jack (for connecting to 2-wire or 4-wire leased line), as
illustrated below. For more detailed description, please refer to Chapter 2
"Installation" of this manual.
Figure 3-2 TAINET T-336Cx Rear Panel
16
3.3 Operating the TAINET Network Series Modem
1. Key : Total 5 keys, as follow:
VO/DA It is used as the voice/data select key for dial line application,
Disconnect/Reconnect selection for leased line applications, or "home"
key for set-up menu to go back to the home menu.
Left key ; It is used to shift to left field.
Right key; It is used to shift to right field or next item.
ENTER Enter key; It is used to enter the next lower level menu or confirm
selections.
EXIT Exit key; use it to go back to the upper level menu.
2. LED indicator : total 10 indicators as following:

PWR -- On for power supply ok.
DTR -- On for DTR signal present.
DSR -- On for DSR signal present.
RTS -- On for RTS signal present.
CTS -- On for CTS signal present.
TXD -- On for "0", off for "1" TXD signal present.
DCD -- On for received carrier signal (DCD) present.
RXD -- On for "0", off for "1", RXD signal present..
OH -- On for Off Hook.
TST -- On for test mode active.
3. LCD displayer :
The T-336Cx has a 2 by 16 characters LCD with auto backlight control. Some
different pictures of the LCD display are shown below.
A. Top Menu
Example: V34+ 336 V42bis

D ANS CONNECT 9
Description:
1) Modem Protocol: V34+ 336,V34+ 312,V34 288, V32b 144T, V32 96T, V22b
24,....
2) Data Protocol: V.42bis, V.42, MNP-5, Normal, Direct.
3) Line Type: D (Dial Line), L (Leased Line).
4) Mode: ANS (Answer Mode) ,ORG (Originate Mode).
5) Status: Stanby, Handshaking, Connect, Retrain, Ring...
6) SQ: Signal quality 9,8,7,6....,0
17
B. Menu Select
Exp 1 : Exp 2 :
L MENU Select L MENU Select

STATUS TEST
Description:
1) In top menu, press "ENTER" key to enter this menu.

2) Select "LOCAL"or "REMOTE" first if connected and remote access function
enabled.
3) The character "L" on the upper left corner stands for local.
4) You may use " " and " " keys to select menu.
5) Press "ENTER " key to enter the "MENU".
6) Press "EXIT" key to quit from this menu.
7) Note that status menu is not available before connection.
C. Menu Screen
Exp 1 : Exp 2 :
L STATUS R CONFIG MODEM

RX Level =-10dBm TX clock
Exp 3 : Exp 4 :
L TEST L DIAL
LAL (ON) Dial a number
Description:
1) L=Local, R=Remote.
2) Menu name: STATUS, TEST, DIAL.......
3) Status or setting: RX Level=-10dBm, LAL = ON
4) Use " " or " " keys to shift among fields; press "ENTER" key to enter the
selected menu.
D. Set-up Menu
Exp 1 : Exp 2 :
LL TX Level R Protocol type

-10dBm ← Auto MNP/V42 ←
1) Use " " or " " keys to shift among fields, then press "ENTER" key to confirm
and wait for ← appears on the LCD screen.
2) Press "EXIT" key to quit from this menu.
18
3.4 The Menu Tree
Main Menu
STATUS
DIAL
PROTOCOL
Version Top
TEST
CONFIG MODEM
CONFIG DTE
COMMAND
LINE SETUP
PROFILE
REMOTE STATUS
A. STATUS MENU / REMOTE STATUS MENU
Tx Level = -XX dBm

Rx Level = -XX dBm
S/N. Ratio = XX dB
EQM Valueio = XXX
F-Shift = X.X Hz
F F-Shift = X.X Hz
* Delay = XXXX ms
* P jitter = X Deg.
STATUS : * F Echo = XX.X dB
DTE = XXXXX ASY 10
Retrains = XXXXX
*/ RX Speed = XXXX
*/ TX Speed = XXXX
*/ RX Baud = XXXX
*/ TX Baud = XXXX
*/ RX Freq = XXXX Hz
*/ TX Freq = XXXX Hz
*/ TX PowerOff = X dB
Menu Retrain
Interface indicators = TR MR RS CS CD T
Note: The function with asterisk mark (*) is only available for V.32 and above.
The function with both (*) and (/) marks is only available for V.34.
19
B. DIAL MENU
Dial a Number #0 nnnn\#1 nnnn\...\#9 nnnn
Edit a Number #0 nnnn\#1 nnnn\...\#9 nnnn
Ring Times Auto ANS Off\1 Times...255 Times
Progress Tone Basic Code\Don't Care\Dial Tone
\Busy Tone\Dial+Busy Tone
Redial Delay Immediate\1\... \255 Second
Dial Type Tone\Pulse
SPK. Control Until DCD on\Always on\Off when
dial\Off
SPK. Volume Low\Medium\High
C. PROTOCOL MENU
Protocol Type Normal\ Direct\Reliant MNP \Auto
\Reliant LAPM\ LAPM Normal
\LAPM MNP\ MNP Normal
Discon. Method Immediate\With Clear-down \Modem
Reset
Login Check Disable\ #0..#9\ ALL\ By NMS
Send Password Off\ #0..#9
CallBack No. #0..#9
CallBack Timer Disable\ 1…255 Seconds
Connect Code DTE Speed\DCE/EC/DTE Speed
\DCE Speed
Compress Off\On
D. TEST MENU
Clear All Has Been Done
LAL Off\On
DL Off\On
RDL Off\On
RDL Grant Off\On
Error Count 0 ... 65535
B.E.R. Test Off\511
E. CONFIG MODEM MENU

Modem Speed V.34 Adaptive\V34+ 336\V34+ 312
\V34 288\V34 264 \V34 240\V34 216
\V34 192\V34 168\V34 144 \V34 120
\V34 96\V34 72\V34 48\V34 24
\V32b Adaptive\V32b 144\V32b 120
\V32 96Q\V32 96T\V32b 72\V32 48
\V26b 24\V26b 12\ V23 1200
\V22b 2400\V22 1200\BELL 212A
\BELL 103 \V21 300
20
ORG/ANS Mode Answer Mode\Originate Mode

Auto Retrain On\Off
Tx Clock Internal\External\Loopback
Retrain Threshold High \Medium \Low
ASI Overspeed +1%…-2.5% \ +2.3%…-2.5%
Make/Break US (39%)\UK (33.3%)
Force Off Hook Force a off hook activity using "Enter"
key
OH by DTR On\Off
Pump Edit □□□:□□□□
FB\FF Ctrl Off\On
LL Tx Level 0 dBm...-31 dBm
DL Tx Level 0 dBm...-15 dBm
Remote Access On\Off
Dynamic Range -12..-44dBm\ -2..-35dBm
F. CONFIG DTE MENU

DTE Speed 115200 bps\76800 bps\57600 bps
\38400bps\33600 bps\31200bps
\32000bps\28800 bps\26400 bps
\24000 bps\21600 bps \19200 bps
\16800 bps\14400 bps\12000 bps
\9600 bps\7200bps\4800 bps
\3600 bps\2400 bps\1800 bps
\1200 bps \600 bps\300 bps
Flow Control Off\X-On, X-Off\RTS/CTS\CTS only
DTR Off Action Force On\Command Mode
\Disconnect\Modem Reset
DTR Control 108-2\108-1
TS Control Force On\Normal
DSR Control Normal \ Force On
DCD Control Force On\Normal\V.13 HDX\V.23 HDX
Data Format ASYNC\SYNC
Total Bits 8\9\10\11
AL by 141 Off\On
RDL by 140 Off\On
G. COMMAND MENU
Command Mode AT Command\V.25bis Command
\Dumb Mode
Auto Baud Off\On
Framing ASYNC\HDLC\SDLC
\BSC
Async Form 7-O-1 \7-E-1 \7-N-2 \8-N-1
Idle Char Idle\Sync
21
H. LINE SETUP MENU

Line Type Dial \2W Leased Line\4W Leased Line
Leased To Dial Manual\Auto
Backup Tel No Dial Backup\#0nnnn\#1nnnn
\…\#9nnnn
Backup Speed V34 Adaptive\V34+ 336\V34+ 312\V34 288
\V34 264\V34 240\V34 216\V34 192
\V34 168\V34 144\V34 120\V34 96
\V34 72\V34 48\V34 24\V32b Adaptive
\V32b 144\V32b 120\V32 96Q\V32 96T
\V32b 72\V32 48\V26b 2400\V26b 1200
\V23 1200\V22b 2400\V22 1200
\BELL 212A\BELL 103\V21 300
Dial To Leased Manul\Auto
Dial To Leased Timer Forver\0~255 Minutes
Dial to Dail Off\On
I. PROFILE MENU
Load User Profiles#0...#9
\0:AS-DL-AT-AUTO
\1:AS-DL-AT-NONE
\2:SY-DL-V25-NONE
\3:AS-2L-ANS-V34
\4:AS-2L-ORG-V34
\5:SY-2L-ANS-V34
\6:SY-2L-ORG-V34
\7:SY-4L-ANS-V34
\8:SY-4L-ORG-V34
\9:AS-2L-ANS-AUTO
Power Up User Profile #0…#9
Initial Are You Sure?
Front Lock Unlock\Lock
Password Edit Input:---
Sreg Edit BASE=DECIMAL\BINARY
Save User Profiles#0...#9
22
3.5 Detailed Description of the Menu Tree
3.5.1 STATUS MENU
Item Name Command Description
TX LEVEL = -XX AT%S Transmitted signal level. This value is equal to the " TX level"
dBm of config modem. Normally, for the 2w leased line and the dial
line, the recommended value is between -10 and -13dBm. It
can be increased of in order to obtain a more satisfactory S/N
ratio (signal to noise ratio) by setting a higher level as possible,
but a saturation of the active transmission equipment should be
avoided. The Tx level level should be setting under -13dBm
while to operating V.34 mode.
RX LEVEL= -XX dBm AT%S Received signal level. This value is the result of the line
attenuation from the transmitted signal. Normally, the RX level
of 2w leased line and the dial line is between -15 and -33dBm.
S/N. RATIO = XX dB AT%S Signal to noise ratio. The bigger the S/N ratio, the better
quality of a line is. A higher operating speed needs a higher
S/N ratio. Normally, the S/N requirement of running 14400
bps should be more than 24 dB while to operate at 9600 bps,
a S/N better than 20 dB is required.
EQM VALUE=XXX AT%S Eye pattern quality monitoring. This value represent the quality
of receiving signal.
F-SHIFT = XX Hz AT%S Frequency-shift (offset). It is the shift of the carrier central

frequency caused by the transmission link. This shift normally
should be less than + / - 7 Hz. The smaller is better.
F F-SHIFT = XX Hz AT%S Far end frequency-shift (offset). The frequency shift of the far
end received carrier signal. It normally should be less than +/-
7 Hz. The smaller is better. The value will not accurate once
level is too small from the remote site.
DELAY = XXXX ms AT%S Round trip delay time. This delay is caused by a round trip of a
long distance line , especially in a satellite circuit. Usually,
round trip of a satellite link shall create a time delay of 0.5
second (500ms). The modem will accept a maximum time
delay of 1.2 seconds.
P JITTER = -X Deg AT%S Monitoring the phase jitter of the phone line.
F ECHO = -XX.X dB AT%S Far end echo. This echo is caused when the far end line
impedance is not matched. A smallest far end echo level is
always required. Normally,the far end echo level is between -
20 dB and -55 dB
DTE = XXXXX ASY AT%S Indication of speed and data format of DTE. For examples:
10 DTE = 19200 ASY 10 stands for 19200 bps Asynchronous 10
bits in total bit length. DTE=14400 SYN means 14400 bps
synchronous.
RETRAINS = XXXX AT%S Total retrain count. From the total retrain count, you will find
the total times of line interference occurred. This value will not
be cleared automatically unless pressing the "ENTER" key or
power off.
23
MANU RETRAIN ATO2 Force Modem redo adapting.
RX BAUD = XXXX AT%S Indication of the signaling rate of received signal. For
examples: RX Baud=3429 means the switching speed or
number of transitions is 3429, however, one baud can be made
to represent more than one bit per second. (This value is only
available when operating on V.34)
TX BAUD = XXXX AT%S Indication of the signaling rate of transmitted signal. (This
value is only available when operating on V.34).
RX FREQ = XXXXHz AT%S Indication of the carrier frequency of received signal. For
examples: RX Freq = 1959Hz means the unique frequency
used to to "carry" data is 1959 Hz. (This value is only available
when operating on V.34).
TX FREQ = XXXXHz AT%S Indication of the carrier frequency of transmitted signal. (This
value is only available when operating on V.34).
TX SPEED = AT%S Indication of the DCE speed of transmission.

XXXXbps
RX SPEED = AT%S Indication of the DCE speed of receiving.

XXXXbps
TX POWEROFF = AT%S Indication of a reduction of transmit power level. For

XdB examples: TX PowerOff = 6dB means the transmit power level
is requested to reduce 6 dB by the remote modem. (This value
is only available when operating on V.34).
TR,MR,RS,CS,CD,T AT%S Indication of the RS-232 interface lead status.
24
3.5.2 DIAL MENU
Dial a Number ATDSn Dial out a preset telephone number #n(n=0..9). This function
\#0...#9 can interact with the auto redial function or dial line auto
establishment function.
Edit a Number AT&Zn=xx Edit telephone number #n (n=0..9) for up to 20 digits each
\#0...#9 group.If the "@" is included inside the number and auto-redial
is ON, then it will redial next number after no answer until the
number without "@". If it is still unsuccessful then retirn to the
first number. Up to 10 intelligent redial group is allowed. #1
xxx@ →#2 xxx@ ... →#n xxx →#1 xxx@ →...
Ring Times ATS0=n Auto answer activates when detected ring count = n
(default=1).
**If 108.1 (DTR ON Auto Dial/Ans) is used for auto answer,
it must be set to OFF and the answer shall be activated by
DTR provided by DTE (default value=1 times).
Auto Ans Off ATS0=0 /Turn off the auto answer function.
1..255 Times /An auto answer will be given when bell rings 1..255 times.
Progress Tone ATXn Enable detecting of busy tone or dial tone to proceed dialing
and showing the connection
Basic ATX0 /Don't care any tone and do not show line connection speed.
Don't Care ATX1 /Don't care any tone and show the line connection speed.
Dial Tone ATX2 /Don't detect busy tone but show the line connection speed.
Busy Tone ATX3 /Don't care dial tone but show the line connection speed.
Dial+Busy Tone ATX4 /Do care dial tone, busy tone and show the extended result
code (default).
Redial Delay ATS37=n Pause time between auto redial

Immediately ATS37=0 /Redial Immediately
1..255 seconds ATS37=n /Set up redial time ( /Default=2 second)
Dial Type Select dial type

Tone ATT /Tone (DTMF) dialing mode
Pulse ATP /Pulse dialing mode
SPK.Control ATMn Monitoring speaker switch control.

Off ATM0 /Keep speaker always off
Until DCD On ATM1 /Speaker turn on until DCD ON,then turn off (default).
Always On ATM2 /Keep speaker always on.
Off When Dial ATM3 /Turn on speaker after dialing is completed, and then detect
until to find out carrier and then turn off speaker.
SPK. Volume ATLn Speaker volume control.

Low ATL0 /Set speaker volume to low.
Medium ATL1 /Set to medium (default).
High ATL2 /Set to high..
25
3.5.3 PROTOCOL MENU
Select error correction and data compression function for async
Protocol Type AT\Nn
mode only.
*This setting is ineffective in sync mode. It will automatically
become direct mode regardless of setting made once the link
established.
Normal AT\N0 /with DTE speed conversion only.Note that the flow control
function must be active.
Direct AT\N1 /disable error correction, data compression, and DTE speed
conversion.(modem speed=DTE speed)
Reliant MNP AT\N2 /Link con be established only when MNP function is enabled on
the remote modem.
Auto AT\N3 /Automatically negotiate V42/MNP level with the remote
modem. The negotiation sequence is V42bis-V42-MNP5-
MNP4-NORMAL.
Reliant LAPM AT\N4 /Link can be established only when V42 function is enabled on
the remote modem.
LAPM,Normal AT\N5 /Negotiate V42 level with the remote modem. The sequence is
V42bis-V42-NOMAL.
LAPM,MNP AT\N6 \/Automatically negotiate V42/MNP level with the remote
modem. The negotiation sequence is V42bis-V42-MNP5-
MNP4.
MNP Normal AT\N7 Negotiate MNP level with the remote modem. The sequence is
MNP5-MNP4-NORMAL.
Connect Code ATWn Select the extended CONNECT result code.
DTE Speed ATW0 /with DTE speed
DTE/EC/DCE ATW1 /with CARRIER, PROTOCOL, and DTE speed
DCE Speed ATW2 /with DCE speed
Discon. method ATS28=n Disconnect method for V34/V32bis/V32

Immediate (bit3,2) /Disconnect immediately.
With clear-down /Send clear-down sequence before disconnection (default)
Modem reset /Reset modem after disconnection
Login Check (this option is effective only under ANS mode). Assign the
password to authenticate dial-in modem:
Disable /Disable Login Check function.
#0..#9 /With this setting, ANS modem will authenticate dial-in modem
with one of the stored phone number #0..#9, timeout for waiting
password from dial-in modem is about 8 seconds; Control code
‘+’ can be applied in #0..#9.
(information about ‘+’ is described in section 4.17).
ALL /Authenticate dial-in modem with all stored phone number #0 to
#9. Any successful match will force ANS modem to grant the
access, timeout for waiting password from dial-in modem is
about 8 seconds; Control come ‘+’ can be applied in #0..#9.
By NMS /If ANS modem is a card type model (T-336Nx/NDx), the
received password will be relayed to CS V1.5x for
authentication. Timeout for waiting password from dial-in
modem is about 8 seconds. If ANS mdoem is a standalone
model (T-336Cx), this option will be the same as ‘ALL’. (The
program CS V1.5x is an additional software on CS server)
Send Password (this option is effective only under ORG mode). Assign the
stored telephone number, which will be sent out as password
during dial-out connection:
Off /Disable the action of sending password, this also disables the
function of Dynamic Password assignment function.
#0..#9 /Send one of the stored phone number between #0..#9 as the
26
password. Time required for sending password is about 2
seconds; Control code ‘+’ can be applied in #0..#9.
CallBack No. (Call back telephone number). Assign one of the stored phone
number #0..#9 as the Call Back Number. Control codes such as
‘+’, ‘<’, ‘>’ should not appear in phone number.
#0..#9
CallBack Timer The period ANS modem will delay before start Call Back
procedure (from Idle to Dial). When this option is set to
‘Disable’, all Call Back related function will also be disabled
(including Dynamic Callback assignment function).
Disable
1…255 Seconds
Compress At%Cn Control of the data compression function

Off AT%C0 /disable data compression function
(use V42 or MNP4 error correction only)
On AT%C1 /enable data compression function
(use V42bis or MNP5 data compression in addition
to V42 or MNP4 error correction)
3.5.4 TEST MENU
Clear All AT&T0 Clear all the tests in one time, and a statement "Has been done"
shall be shown.
LAL AT&T1 Local analog loop test (ON/OFF).This test is normally used to
ON certify if the modem is in normal operation condition. Also,
OFF this test is usually carried out together with B.E.R test.
RDL AT&T6 For remote digital loop test (ON/OFF). This test can control
ON remote modem to executive digital loop for BER test to find
OFF out if the modem and line of both ends are in normal condition.
DL AT&T3 For digital loop test (ON/OFF). This test enable the received
ON digital data demodulated and send back to match with the far
OFF end test.
RDL Grant Set for accepting remote digital loop(RDL) test.

ON AT&T4 /Enable. (default)
OFF AT&T5 /Disable.
Error Count Bit error count display function. Press Left or Right shift key to
0..65535 insert error. Press "ENTER" key to clear.
B.E.R Test AT&T10 Set bit error rate test function.

OFF /Disable (default).
511 /use the 511 test pattern
27
3.5.5 CONFIG MODEM MENU
Speed AT%Bn Set modem speed and protocol.
V34 Adapt AT%B0 /Set modem speed to be V.34 adaptive (multi-standard hand-shaking)
mode, connectable speed from V.34 / V.32b / V.32 / V.22bis / V.22
/V.21. Only work for Dial Line.
V34+ 336 AT%B42 /Set modem speed to V34 + 33.6k bps....4DTCM(SM)
V34+ 312 AT%B41 /Set modem speed to V34 + 31.2k bps....4DTCM(SM)
V34 288 AT%B28 /Set modem speed to V34 28800 bps....4DTCM(SM)
V32b Adapt AT%B47 /Set modem speed to V.32 Auto, auto detact V.32b /V.32 /V.22bis /
V.22 /V.21
V32b 144 AT%B20 / Set modem speed to V.32bis 14400 bps TCM
V32b 120 AT%B19 / Set modem speed to V.32bis 12000 bps TCM
V32 96Q AT%B18 / Set modem speed to V.32 9600 bps QAM
V32 96T AT%B17 / Set modem speed to V.32 9600 bps TCM
V32b 72T AT%B16 / Set modem speed to V.32bis 7200 bps TCM
V32 48 AT%B15 / Set modem speed to V.32 4800 bps QAM
V26b 2400 AT%B9 / Set modem speed to V.26 2400 bps DPSK
V26b 1200 AT%B8 / Set modem speed to V.26 1200 bps DPSK
V23 1200 AT%B7 / Set modem speed to V.23 1200 bps FSK
V22b 2400 AT%B5 / Set modem speed to V.22bis 2400 bps QAM.
V22 1200 AT%B3 / Set modem speed to V.22 1200 bps DPSK
V21 300 AT%B1 / Set modem speed to V.21 300 bps FSK
BELL 212A AT%B4 / Set modem speed to BELL 212A 1200bps DPSK
BELL 103 AT%B2 / Set modem speed to BELL 103 300 bps FSK
ORG/ANS ATS14=n Set modem as the originate or answer mode.

Mode
Originate Mode (bit7) /Originate site

Answer Mode /Answer site
Auto Retrain AT%En The automatic adaptive equalizer can be re-adjusted via retrain
procedure activated automatically when the S/N become worse than
the preset threshold.
On AT%E1 /Retrain occurs automatically according to SQ/EQM value. (default)
Off AT%E0 /Auto retrain disable.
Tx Clock AT&Xn Select transmit clock source.
Internal AT&X0 /Internal clock source, for most point to point application (default).
External AT&X1 /External clock source, for cascade and TDM/STDM network
application.
Loopback AT&X2 /Received clock source, for used in slave side of polling networks or
the modem in the most far end of a cascading network.
28
LL TX Level ATS30=n Set leased line transmit level.
0..-31 dBm /-13dBm (default)
DL TX Level ATS56 =n Set dial line transmit Level.
0..-15 dBm /-13dBm (default)
ASI Overspeed AT%An Select async data speed tolerance.(ITU-T V.14)
+1% AT%A0 /Basic range +1% to -2.5% (default).

+2.3% AT%A1 /Extended overspeed range +2.3% to -2.5%.
Make/Break AT&Pn Pulse dial make / break ratio selection.
UK(33.3%) AT&P1 /33.3\66.7% (default).

US(39%) AT&P0 /39\61%.
Force OFF Hook ATH1 Force modem off-hooking the line to busy out the in
coming calls.
OH by DTR ATS19=n Make the modem to off-hook the line when DTR being
(bit 6) off for a period of time
On /enable the OH By DTR function
Off /disable the OH By DTR function (default)
RTRN.Threshold ATS57=n Select the scaleable retrain threshold for determining the
(bit1,0) data rate of the connection.
High /Issue a retrain or rate change in normal line condition
Medium /Issue a retrain or rate change in poor line condition
Low /Issue a retrain or rate change in worse line condition
Pump Edit product designer use only.
FB/FF CTRL AT%Gn Auto speed fallback and fall forward
On AT%G1 /Enable (Dial Line Default)

Off AT%G2 /Disable (Leased Line Default)
Remote Access ATS27=n Enable the modem to monitor and control the remote
(bit3) modem through the secondary channel
On /enable remote access function
Off /disable remote access function (default)
Dynamic Range ATS28=n Select the dynamic range of receiving signal.

(bit0)
-12..-44dBm /-12 to -44 dBm (Default)
-2 ..-35 dBm /-2 to -35 dBm
29
3.5.6 CONFIG DTE MENU
This setting is used to determine DTE speed when auto
DTE Speed AT
speed conversion is ON in V.42 / MNP / normal mode.
300 bps
600 bps *When using direct mode and all the synchronous
modes, this setting will not available and DTE speed
1200 bps will be determined by modem speed, DTE speed =
1800 bps modem speed.
2400 bps
*The throughput is improved by using data
3600 bps compression, enhance this set higher than the modem
4800 bps speed is suggested to enable more effective operation.
7200 bps *When use "AT" command and auto baud rate detect
9600 bps function "ON", this setting will be replaced by
identified speed.
12000 bps
14400 bps *The Auto baud rate function can detect all the listed
DTE speed.
16800 bps
19200 bps
21600 bps /Default = 57600 bps.
24000 bps
26400 bps
28800 bps
31200 bps
33600 bps
38400 bps
57600 bps
76800 bps
115200 bps
Flow Control AT\Qn Used to set flow control between terminal and modem
when using V.42/MNP and normal mode (asynchronous
mode only).
Off AT\Q0 /No flow control
X-ON/X-OFF AT\Q1 /Software control, used in text data.
CTS Only AT\Q2 /Hardware control identical to RTS/CTS control, but
modem send the data in spite of RTS from DTE,
unilateral control.
RTS/CTS AT\Q3 /Hardware control, bilateral, accept any type of data
(default).
DTR CTL AT%Dn Modem action select for DTR from OFF to ON.
108-2 AT%D0 /Same as V.25 108.2 DTR operation (default).
108-1 AT%D1 /Same as V.25/V.25bis 108.1 DTR operation. When
DTR is from OFF to ON,the modems will dial the
designed preset telephone number or answer according
to the current ring count.
DTR Off Action AT&Dn On originate and answer site respectively modem action
select for DTR from ON to OFF.
Forced On AT&D0 /Force DTR in ON position
A power-on auto dial operation can be achieved when
operating with DTR ON auto dial (default).
Command mode AT&D1 /Return to the command mode.
30
Disconnect AT&D2 /Disconnect. Normally used with 108.1.
MODEM Reset AT&D3 /Force Modem reset.
DSR Control AT&Sn DSR signal control selection.

Normal AT&S1 /DSR ON after Modem handshaking.
Forced on AT&S0 /Force DSR in ON position.
DCD Control AT&Cn DCD signal control selection.

Forced on AT&C0 /Force DCD in ON position.
Normal AT&C1 /DCD ON means line is in connection while DCD OFF
means line is OFF (default).
V.13 HDX AT&C2 /ITU-T V.13 standard simulated carrier in half-duplex
mode.
V.23 HDX AT&C2 /ITU-T V.23 standard simulated carrier in half-duplex
mode.
RTS Control AT&Rn RTS signal control selection.

Normal AT&R0 /Controlled by RTS.
Forced on AT&R1 /Keep RTS in ON position..
Data Format AT&Mn Data format selection in data mode.

Async AT&M0 /Async.
Sync AT&M1 /Sync.
Total bits ATS19=n Total bit length for async data format
(bit5,4) (including Start, Stop, Parity, Data bits, default =10)
8/9/10/11
AL by 141 ATS23=n DTE control AL through EIA RS-232 pin18

(bit2)
On /Enable
Off /Disable (default)
RDL by 140 ATS23=n DTE control RDL through EIA RS-232 pin21
(bit1)
On /Enable
31
3.5.7 COMMAND MENU
Command Mode ATS19=n Intelligent function command set selection.

AT command (bit1.0) /Hayes compatible "AT" command set with async
format.
V.25bis command /ITU-T V.25bis command set with async, Bisync and
HDLC\SDLC formats.
Dumb mode /Dumb mode, don't accept any command. This mode is
set for all leased line and most of the sync dial line to
prevent modem from interference made by the data of
the terminal, and protect the terminal against any
malfunction caused by the return result code from the
modem.
Auto Baud AT%Un Auto baud rate detection function control for AT
command mode.
On AT%U1 /Enable (default).
Off AT%U0 /Disable.
Framing ATS19=n V.25bis command data format.

ASYNC (bit1,0) /Async (default).
HDLC/SDLC \HDLC/SDLC
BSC \Bisync/monosync
Async form ATS19=n Select the Async data parity

(bit5,4)
7-O-1 /7 Data Bits, odd parity 1 stop bit
7-E-1 /7 Data Bits, even parity 1 stop bit
7-N-2 /7 Data Bits, none parity 2 stop bits
8-N-1 /8 Data Bits, none parity 1 stop bit (default)
Idle char. ATS19=n Select the char to be transmitted for the BSC & HDLC
(bit3) faming
Idle /No character to be Tx when idle.
SYNC /SYNC char be Tx when idle.
32
3.5.8 LINE SETUP MENU
Line Type AT&Ln Select line type and also set dial back-up function.
Dial Line AT&L0 /Dial line.
2W Leased AT&L1 /2 wire leased line.
4W Leased AT&L2 /4 wire leased line.
Leased to Dial ATS31=n Auto dial back-up control while leased line is out of
service.
Manual (bit0) \Manual control (default)
Auto /Auto dial back-up.
Backup Tel. Select backup telephone number #n (n=0~9)

No dial backup /Disable backup function (default)
#0 nnnn .. to #9 nnnn /Enable backup function and make a choice of the
phone number group.
Backup Speed ATS55=n Select modem speed used in the auto dial backup mode.
V34 Adapt to V21 300 \(default =V.34 288)
Dial To Leased ATS31=n Select whether return to leased line automatically or not
during dial back-up mode.
Manual (bit1) /Manual control (default)
Auto /Return to the leased line automatically when leased line
is recovered.
D to L Timer ATS36=n When operate in dial back-up mode, to select how long
it will take to detect if the leased line is recovered or
not.
Forever /No dial to leased
1..255 mins. \(default = 60 minutes)
Dial To Dial ATS42=n When dial line is in use (excluding dial back-up mode),
( bit 3 ) the line can be restored by auto-redial after line
disconnection.
On /Any abnormal line disconnection shall automatically
redial to connect.
33
3.5.9 PROFILE MENU
LOAD ATZn This machine provides 20 groups of load configuration

profile. Among them 10 groups configuration profile which
(n=0-9)
cover the most required applications for normal use. The
other 10 groups are set by the user which can be revised by
the user before filing for use.
User Defined :
User Profile#0..#9 AT&Zn /User defined load profile #0..#9. Through this operation,
required settings can be made for the next operation when
the modem is power on.
Default profile : AT&Fn&W Load factory profile #0..#9.

0: AS-DL-AT-AUTO AT&F0&W /Async, dial line, AT command, Auto reliable mode, V34
Adapt, this mode is most applicable to BBS networks.
1: AS-DL-AT-NONE AT&F1&W /Async, dial line, AT command, direct mode and V34 Adapt,
this is a typical operating mode for Hayes compatible
modem
2: SY-DL-V25-NONE AT&F2&W /Sync, dial line, V.25bis command, V34 Adapt, this mode is
applicable to IBM AS-400 series sync dial networks.
3: AS-2L-ANS-V34 AT&F3&W /Async, 2W leased line, answer, applicable to the most of the
async, non-compressed 2 wire leased line.
4: AS-2L-ORG-V34 AT&F4&W /Async, 2W leased line, originate, applicable to the most of
the Async, non-compressed 2 wire leased line.
5: SY-2L-ANS-V34 AT&F5&W /Sync, 2W leased, answer, applicable to the most of the Sync,
2 wire leased line.
6: SY-2L-ORG-V34 AT&F6&W /Sync, 2W leased line, originate, applicable to the most of the
Sync, 2 wire leased line.
7: SY-4L-ANS-V34 AT&F7&W /Sync, 4W leased, answer, applicable to the most of the Sync,
4 wire leased line.
8: SY-4L-ORG-V34 AT&F8&W /Sync, 4W leased line, originate, applicable to the most of the
Sync, 4 wire leased line.
9: ASY-2L-ANS-AUTO AT&F9&W /Async, 2W leased line, answer, applicable to the most of the
async, compressed, 2 wire leased line.
SAVE AT&Wn Store the revised configuration in the user-defined

(n=0-9) configuration profile.
User Profile#0..#9 \/Store in the nth group in the user's configuration profile.
Usually, the 0th group is provided for the working area,
setting store in this area or load the factory default will
change the set parameters for next power-on operation. If
you want the nth group is to be used for the next power-
on working profile, operate the load user profile #n.
Front Lock ATS29=n Front panel lock control.

Unlock (bit4) /No limitation for any front panel operation (default).
Lock /Allow view the status and current setting of the modem,but
can not make any changes of setting.
Password edit For changing password, use left key-L, right key-R, enter
key-E, exit key-X, Home key-V.
Input:_ _ _ _ /The password by the factory are "REEE" (right moving key,
ENTER, ENTER, ENTER).
Power up AT&Yn select the user profile to be used on power up.

User Profile#0..#9
Initial AT&F10 Re-initialize the user profiles to the Factory
34
profile#0,and flush the stored telephone numbers.
Are you sure??? /confirm the initializing action. Press enter key to
confirm or any other key to quit.
Serg edit ATSn=m Edit the contain of the selected sreg.

Base = DEC /Edit the value of the S-register in decimal form.
Base = Bin /Edit the value of the S-register in binary form.
After selecting the form, press Enter to starting
editing S-register shown in the following format.
XX : △△△□□□□□□□□ xx: Use left key,right key and enter key to select
the S-register to be edited.
∆∆∆: Use left key, right key and enter key to edit
the value of the selected S-register in decimal
form.
: Use lift, right, and enter key to
edit the value of the selected S-register in binary
form.
To discard editing, press exit key.
35
CHAPTER 4: GENERAL INFORMATION AND FEATURES
CHAPTER 4
GENERAL INFORMATION AND FEATURES
CONTENT
4.1 Preview
4.2 Dieal Line VS. Leased Line
4.3 2W/4W Leased Line
4.4 Originate Mode VS. Answer Mode
4.5 Synchronous VS. Asynchronous
4.6 Error Correction And Data Compression
4.7 Configuration Profile Set-up
4.8 Remote Access
4.9 Multi-standard Handshake
4.10 Auto Dial Back-Up
4.11 Auto Fallback And Fall Forward
4.12 Line Status Monitoring
4.13 B.E.R. Test
4.14 Intelligent Dial
4.15 Front Panel Lock And Password Protect
4.16 ITU-T V.13/ V.23 Simulated Carrier Control in Half Duplex
4.17 Password and Call Back Functions
4.18 Intelligent Dial Polling
4.19 G3 Fax Send/Receive
37
4.1 Preview
In order to help you to get familiar with your TAINET Network Series Modem, this
chapter introduces you some common applications. For most applications, the
materials of this chapter will be enough.
4.2 Dial Line VS. Leased Line
There are two kinds of telephone lines --- dial lines and leased lines described as
below.
A. Leased line provides users a dedicated communication channel. Both ends of the
circuit are permanent. It offers continuous service and provides absolute security.
It will not be invaded by any other circuit due to the dedication, it supports better
quality and higher reliability.
DTE DTE
MODEM ∼ MODEM
FIG. 4-1: Leased Line
B. B. Before using a dial line such as the circuits for telephone and facsimile machine,
we have to dial a number. For the users who are used to communicate with
different counterparts such as bulletin board system (BBS), public service network,
and toll free services, this will be a better choice. Due to the time consuming
dialing procedure (45-60) Sec.), the efficiency is lower than that of leased lines. It
is even worse when line or destination is busy. Furthermore, the communication
path is different at each dial, so the line quality is not ensured. Besides, it doesn’t
guarantee good security.
To make this modem operate in 2/4-wire leased line, or dial line, you need to do some
settings with Line Type Selection under “LINE SETUP” menu.
DTE MODEM MODEM DTE
PSDN
DTE MODEM MODEM DTE
FIG 4-2: Dial Line
38
4.3 2W/4W Leased Line
We had talked modem operate in the previous section. There are two-wire leased lined
and four-wire leased line.
2W leased line achieves full duplex with only a pair of lines. There comes up the
problem of interference. In V.21, V.22, V.22bis operating modes, the T-336Cx used
the frequency split method. Whereas, in V.32/V32bis/V.34 mode, it must provides
"echo cancellation", because originate and answer modems occupy the same
frequency band.
4W leased line offers two independently unilateral transmission channel, therefore, it
can achieve full duplex communication with less interference.
Obviously, the line quality of 4W leased line is better than that of 2W leased line.
However, the T-336Cx does an excellent job with both 2W and 4W leased lines and
even dial line.
DTE MODEM ∼ MODEM DTE
2W Leased Line
MODEM ∼ MODEM
DTE ∼ DTE
4W Leased Line
FIG. 4-3: 2W/4W leased line.
4.4 Answer Mode VS. Originate Mode
While using the dial line, there must be a modem initiating the call, once the exchange
recognizes the number, it connects the circuit to the answering modem with ring
signals. Answering modem can pick up the call manually or automatically. Afterward,
it issues the answer tone to connect with the originate modem. Usually, we call the
modem which dials the call as originate mode and the other one as answer mode.
According to the role of the connection the training sequence and working frequency
band of either modem is different from each other even operating with leased line.
With 2/4-wire full-duplex operation such as V.21, V.22, V.22bis, V.23, V.32, V.32bis,
V.34, Bell 103, and Bell 212A, there should be an originate mode and an answer
mode.
You may find the information of originate/answer settings in the “ORG/ANS MODE”
column of “CONGIF MODEM” MENU. Note that the modem will automatically
determine either mode whenever you use the “AT” commands, front panel dialing, or
auto answering.
39
4.5 Synchronous VS. Asynchronous
The data formats of both connecting modems must be exactly the same in order to
exchange data with each other.
There are synchronous and asynchronous data formats. The common personal
computers and terminals are asynchronous. Whereas, the host computers and their
terminals are often synchronous.
For most multiplexes, the connecting modems should be synchronous. However, the
user should know the type of the data terminal equipment (DTE) to get proper
operation.
Except V.21, V.23, and Bell 103 which only can operate in asynchronous mode, other
protocols can run in either mode.
About the settings of this issue, you may find it at “Data Format” column of
“CONFIG DTE” menu. Note that if the asynchronous mode is selected, you need to
set “Data Bits”, “DTE Speed”, as well. On the other hand, if you operate the modem
with “AT” command, it will automatically determine these parameters.
4.6 Error Correction And Data Compression
The TAINET Network Series Modem supports “Error Correction” and “Data
Compression” while operating in asynchronous mode. In addition to 100% error free,
it also provides two to four times data compression rate to increase throughput.
MNP class 4 provides error corrections. MNP class 5 provides data compression for
up to two times. On the other hand, V.42 and V.42bis are the recommendations from
ITU-T V.42 to provide error correction and V.42bis provides data compression for up
to four times.
Due to the improved throughput, the T-336Cx provides DTE speed up to 115200 bps
for between data terminal and modem.
During connecting, the modem automatically recognizes the protocol being used by
the remote modem and set the priority order as LAPM with EC→LAPM→MNP-5→
MNP-4→NORMAL.
Under these error correction and data compression operations, there should be some
kinds of flow control between modem and data terminal equipment (DTE) to avoid
data loss. the hardware solution to the modem is by controlling RTS and CTS signals.
The software solution is by utilizing X-on and X-off codes.
To find the setting information dealing with error correction and data compression,
you may look up the “PROTOCOL” menu. In addition, “CONFIG DTE” menu gives
you the guide to flow control setting.
40
4.7 Configuration Profile Set-Up
The TAINET Network Series Modem have various operating modes. To save your
energy, it provides 10 sets of factory default settings as well as 10 sets of user setup
profile which store data even the power is off. Users may choose the most similar
factory default setting; make some modifications with front panel or by AT commands
from terminal then save the modified setting to a user profile. From then on, once the
modem is turned on, it will use this user profile as default.
You may find the “Load”, ”Save” selections in the “PROFILE” Menu where you can
save the current configuration into the selected user profile or load the user or the
factory profile.
Table 4.7.1 shows the default settings of each factory profiles.
Table 4.7.1 T-336Cx Factory Profile Default Settings
Profile # #0 #1 #2 #3 #4 #5 #6 #7 #8 #9
SETTING ASY-DL- ASY-DL- SYN-DL- ASY-2L- ASY-2L- SYN-2L- SYN-2L- SYN-4L- SYN-4L- ASY-2L-
ITEM AT- AT- V25- ANS-V34 ORG-V34 ANS-V34 ORG-V34 ANS-V34 ORG-V34 ANS-
AUTO NONE NONE Auto
DATA ASYNC ASYNC SYNC ASYNC ASYNC SYNC SYNC SYNC SYNC ASYNC
FORMAT
COMMAND AT AT V25bis DUMB DUMB DUMB DUMB DUMB DUMB DUMB
LINE Type DIAL DIAL DIAL 2WL.L 2WL.L 2WL.L 2WL.L 4WL.L 4WL.L 2WL.L
RING Times 1 1 1 1 1 1 1 1 1 1
MODEM V.34 V.34 V.34 V.34 288 V.34 288 V.34 288 V.34 288 V.34 288 V.34 288 V.34 288
SPD Adapt Adapt Adapt
ORG/ANS ANS ANS ANS ANS ORG ANS ORG ANS ORG ANS
Tx level -13dBm -13dBm -13dBm -13dBm -13dBm -13dBm -13dBm -13dBm -13dBm -13dBm
Auto Retrain On On On On On On On On On On
DTE Speed 57600 57600 57600 57600 57600 57600 57600 57600 57600 57600
PROTOCOL V42bis Direct Direct Direct Direct Direct Direct Direct Direct V42 bis
FLOW RTS/CTS Xon/Xoff Off Off Off Off Off Off Off RTS/CTS
CTRL.
RTS CTRL. ON ON Normal ON ON Normal Normal Normal Normal Normal
DCD CTRL Normal ON Normal Normal Normal Normal Normal Normal Normal Normal
DTR OFF ON ON DISCNT ON ON ON ON ON ON ON
DSR CTRL. ON ON Normal ON ON ON ON ON ON ON
Disconnect clear immediate clear clear clear clear clear clear clear clear
Method down down down down down down down down down
4.8 Remote Access
For improving service loading, the T-336Cx offer a remote access function through
secondry channel. It can read and write the parameter of the remote site modem from
local site for well maintenance purpose.
To use this function, the "Remote Access" under "CONFIG MODEM" menu must set
to be on.
4.9 Multi-standard Handshake
The T-336Cx complys with ITU-T recommendations V.34, V.32bis, V.32, V.22bis,
V.22, V.21, V.8, V.42 and V.42bis operating standard.
This functions in both calling and answering mode to automatically recognize the
remote modem standard and connect to it accordingly.
41
4.10 Auto Dial Back-Up
When you apply T-336Cx to leased lines, no matter what protocol you are using, in
case that the lines don't function well, you may allow modem dial a stored number via
a dial line to rebuild the connection. This line is called "back-up line."
While using the back-up line, the modem periodically checks the recovery of leased
lines to find the opportunity to go back to leased lines in order to save the charge of
dial line.
To use this function, you must set "leased To Dial" and "Dial To Leased" to be
"AUTO" or "MANUAL" under "LINE SETUP" menu; also fill up "Backup Tel#1"
and recovery time.
4.11 Auto Fallback And Fall Forward
When auto fallback & fall forward is enabled in V.34 or V.32bis mode, the modem
will automatically initial a V.34 or V.32bis rate renegotiation when the line condition
changes, so that the optimum available data rate is always select with minimal
interruption to user data.
To use this function, the "FF/FB control " under "CONFIG MODEM"menu must set
to be on.
4.12 Line Status Monitoring
In order to let users manage transmission conditions, the TAINET Network Series
Modem provides a signal quality displayed at right lower corner of the screen. It
ranges from 0 to 9. The following shows the relationship between the displayed
number and bit error rate (BER).
9 -- < 10 ^ -9
8 -- < 10 ^ -8
7 -- < 10 ^ -7
6 -- < 10 ^ -6
5 -- < 10 ^ -5
4 -- < 10 ^ -4
3 -- < 10 ^ -3
2 -- < 10 ^ -2
1 -- < 10 ^ -1
0 -- NO Connect
Basically, 10^-5 to 10^-6 is the basic required bit error rate. If this condition is not
achievable; leased line users should report to telephone company, however, it is better
for dial line users to try the dial again.
There are some real time line condition information which may help you judge the
line quality:
Examples :
1. Transmitted signal level Tx level = -10 dBm
2. Received signal level Rx level = -25 dBm
3. Signal to noise ratio S/N Ratio = 35 dB
4. Received frequency shift F-Shift = 0.2 Hz
5. Far-end frequency shift F F-Shift = 1.7 Hz
6. Round trip delay Delay = 560 ms
42
7. Phase jitter P J = 1 Degree
8. Far-end echo level F Echo = -40 dB
9. Terminal mode DTE = 19200 ASY 10
10 .Retrain count Retrains = 1
The parameters above can be found in “STATUS” menu.
4.13 B.E.R Test
In addition to the parameters stated in the previous section, the TAINET Network
Series Modem also offers bit error rate test without any extra test instruments.
Before using the BER test, you have to build a connection then enter "TEST"
menu, set "BER Test" to be ON, select "Error count". Note that if you want to do this
test with both modems, you need to do the setting described above with both modems.
During test, you may press "→" or "←" key to send some error codes and observe
whether the other modem received them or not. The number of error bits for each
issue is from 2 to 5. At the beginning of the test, you may press “ENTER” to clear
"Error Count. " Wait a period, you may get B.E.R by dividing error count by total
transmitted bits. There are one test pattern, say 511, you may choose from. The
selection can be done at "BER TEST" under "Test" menu. Note that the settings of
both modems should be consistent.
You may execute this test even no one is at the remote site. It can be done by utilizing
remote digital loopback (RDL) which makes remote modem loopback its received
data. To start it, activate “RDL” in “Test” menu, then execute BER test stated above.
Beware that error codes generated by local modem will be received by itself. Hence,
the error count you get is the sum of that of transmitted and received routes (bilateral).
You may judge whether the modem is good or not by operating local analog loopback
then execute BER test. No matter how long you execute this test, the error count
should be 0.
4.14 Intelligent Dial
There are some data terminal equipment such as multiplexes, controllers, and
synchronous terminals can’t issue “AT” commands to dial. The modem offers you a
very convenient way to dial by means of operating front panel. In addition to ten set
phone number, it provides you a 108/1 auto dial function which dial pre-determined
number when you turn the modem on or when DTR is turned on (off to on transition).
4.15 Front Panel Lock and Password Protect
In order to prevent from the operation of unauthorized persons, we offer you this
function. After you set “Front Lock” under “PROFILE” menu to be “Lock”, even the
front panel keys are still effective, all the operations affecting transmission are not
allowed. You only may observe the setting and monitor the line conditions.
To release the lock, you need to enter a password. The following is the table of panel
keys.
"EXIT" --- X
"ENTER" --- E
"HOME" --- V
"Æ" --- R
"Å" --- L
The factory setting is “REEE”, and can be modified by users. Before you change the
password, you need to enter the old one. So don’t forget the password you had entered.
43
4.16 ITU-T V.13/ V.23 Simulated Carrier Control in Half Duplex
The modem normally operates in full duplex. mode. However, some applications may
requires control of a remote DCD signal by a local RTS signal. V.13/ V.23 operation
allows local RTS control of remote DCD signal without on-off carrier switching in
half duplex operation.
The V.13/ V.23 function apply to the SNA network and the related setting is located
in "DCD control" under "CONFIG DTE" menu.
4.17 PASSWORD AND CALLBACK FUNCTIONS
4.17.1 Dynamic Password/CallBack:
Special Control codes below can be utilized to assign Dynamic Login Password or
Call Back Phone Number (work with both AT command dialing string and front panel
dialing operation):
a. ‘<’ +<string>: Control code for Dynamic Password assignment. <string> after ‘<’
will be sent to ANS modem as Password. It overrides the setting in ‘Send
Password’, but will be ignored if ‘Send Password’ = ‘Off’.
b. ‘>’ +<string>: Control code for Dynamic Call Back Number assignment. <string>
after ‘>’ will be sent to ANS modem as the desired Dial Back Number. After ANS
modem authenticated ORG modem, it will call back with <string>. This Control
code overrides the setting of ‘Call Back No.’ in ORG modem. If ‘Send Password’
= ‘Off’ on ORG modem or ‘Call Back No.’ = ‘Disable’, this character will be
ignored.
4.17.2 Extension Code for Stored Phone Numbers (‘+’+<char>):
If the last two digits of Stored Phone Number is ‘+’+<char>, modem will dial current
number and continue on with specific stored number as designated by <char>. <char>
is the stored phone number order(#n). (any other characters after <chart> will be
omitted)
For example: ATDT1234+5 will force the modem to dial 1234 and the number stored
in #5. Total number in a dial string should not exceed 250 characters. The ‘+’ Code
should not appear in Call Back Number or it will be ignored when ANS modem
calling back.
4.17.3 Additional Information:
a. Front Panel LCD will show “Call Back” to indicate it is under Call Back mode:
When ANS modem is waiting under ‘Call Back Timer’ to call back.
b. When ORG modem dial with Dynamic Call Back Control Code “>”+<string> and
sending Password for authentication(no matter send with ‘Send Password’ or
Dynamic Password): ANS modem will save received Password, and send it back
while Call Back link was built. And it overrides the setting in its own ‘Send
Password’.
c. When modem is under Call Back operation, VO/DA can be used to cancel
procedure.
d. When applying Password or Call back Security function, ‘PROTOCOL’ setting in
both modems should be identical.
44
e. Dynamic Password/Call Back Control Code as “>”, “ <” will not take effect
during Login check (will be treated as part of Password).
There’s no Call Back function under leased line mode.
f. Password Security by Pass through
4.18 Intelligent Dial Polling
1. Settings:
When under Dial Modifiers setting, use “@” symbol for intelligent dial polling
instead, but “=” is still “wait for quiet answer (silence).
2. Operations:
If a “@” symbol included in the Telephone Number #0- #9, also abnormal
disconnection, i.e. jumping back to Idle before connecting occurred (exception:
when Originate user press the VO/DA button), then dialing will be proceeded from
the telephone number with a “@” symbol and stop at the one without a “@” symbol.
For instant: Tel #0: 12345678@
Tel #1: 23456789@
Tel #2: 34567890
If dialing starts from #0, it will automatically dial from #0, #1 to #2 and stops at #2.
Note: if user has set Dial To Dial function to “On”, then the dialing will keep
dialing #2.
Also reminds that:
a. If user is using ATDTxxxx@ command to dial, then it will start the dial polling
from Telephone Number #0.
b. If the setting of DTR is “DTR off to on (108-1)”, then the “@” symbol (function)
needs to be set included in #0 in order to start the dial polling function after the
initial dialing.
c. If the setting is “Dial to Dial on”, then the “@” symbol (function) needs to be set
included in the Backup Tel in order to start the dial polling function after the
initial dialing.
d. If the dial polling number followed by an “Empty” phone number, then the
dialing will cycle back to #0. (However, if the Tel #0 is an empty number, then
the dial polling will terminate.)
e. When dial polling to #9 (or #5 when the Country Code is Beijing Tainet), it will
return back to #0.
f. When during the “Dial Backup” (Leased to Dial), then the “@” function will not
be working.
g. The dial polling will terminate when a connection has been made.
h. Before the connection, user at Originate can press the VO/DA key to terminate
the dial polling.
45
CHAPTER 5 : INSTRUCTION SETS
CHAPTER 5
INSTRUCTION SETS
CONTENT
5.1 AT Command Set
5.2 Dial Modifiers
5.3 Result Codes
5.4 V.25bis Auto Call Unit
46
5.1 AT Command Set

Table 5-1: AT Command Set
Cmd Function Description

A/ repeat the last AT command
ATA answer command
ATD dial command
ATEn echo on/off

0 : echo off
1 : echo on
ATHn hang on/off
0 : on hook
1 : off hook
ATIn modem identification command
0 : report product code
1 : ROM checksum
2 : verify ROM checksum
3 : Report ROM components
4 : modem capabilities and version
5 : Country Code
6 : pump controller : CS
7 : pump-DSP : CS
8 : CTL/ SPX Version
9 : OK
ATLn speak volume control
0 : Low
1 : Medium
2 : High
ATMn speak control
0 : off
1 : untill DCD on
2 : Always
3 : off when dial
ATOn go online
0 : go back to data mode
1 : rate change
2 : retrain
ATP enable pulse dialing
47

ATQn response on/off
0 : response on
1 : response off
ATS S register read/write
ATSnn? : read s register
ATSnn=mm : write value mm (in decimal form) to the s
register nn
ATT enable tone dialing
ATVn result code form (long/short)

0 : short
1 : long
ATWn extented result code formats
0 : CONNECT with DTE speed
1 : CONNECT with CARRIER, PROTOCOL and DTE speed
2 : CONNECT with DCE speed
ATXn result code formats / call progress options
0 : CONNECT without speed message,
blind dial, no busy tone
1 : CONNECT with speed message,
blind dial, no busy tone
wait for dial tone, no busy tone
blind dial, check busy tone
wait for dial tone, check busy tone
ATZn load user profile n (n=0~9)
0 : load user profile 0
n : load user profile n
AT&Cn DCD control
0 : DCD forced on
1 : DCD normal
2 : V.13 HDX
3 : V.23HDX
AT&Dn DTR on-to-off actions
0 : ignore
1 : recall command mode
2 : disconnect
3 : reset modem
AT&Fn load factory profile n
n = 0 .. 9
48

AT&Gn guard tone options
0 : disabled
1 : 550 Hz
2 : 1800 Hz
AT&Kn DTE flow control options
or 0 : no flow control
AT\Qn 1 : XON/XOFF flow control
2 : CTS only flow control
3 : RTS/CTS flow control
AT&Ln line type selections
0 : dial line
1 : 2-wired leased line
2 : 4-wired leased line
AT&Mn data format options
or AT&Qn 0 : async data mode
1 : sync data mode
AT&Pn dial pulse (MAKE/BREAK) ratio
0 : USA (39/61%)
1 : UK (33/67%)
AT&Rn RTS/CTS options
0 : RTS normal
1 : RTS forced on
AT&Sn DSR control
0 : DSR forced on
1 : DSR on after connect
AT&Tn selftest commands
0 : clear all test
1 : LAL test
3 : DL test
4 : RDL grant enable
5 : RDL grant disable
6 : RDL test
7 : RDL + TP test
8 : LAL + TP test
10 : TP on
AT&Vn view active config/user profiles/tel numbers
0 : view current active profile
n : view user profile n (n=1~9)
AT&Wn save to user profile n
n = 0 to 9
AT&Xn sync tx clock source options
0 : internal clock
1 : external clock
2 : slave (loopback) clock
49

AT&Yn powerup user profile n (n=0~9)
0 : load user profile 0 on power up
n : load user profile n on power up
AT&Zn view/store telephone number n (n=0~9)
n = 0 .. 9, the selected telephone number
AT&Zn? : view tel number n
AT&Zn=string : store the string to tel number n.
AT\Jn DTE/DCE speed convert on/off
0 : enable DTE/DCE speed convert
1 : disable DTE/DCE speed convert
AT\Nn protocol type options
0 : normal mode
1 : driret mode
2 : MNP reliable mode
3 : auto-reliable mode
4 : LAPM reliable
5 : LAPM reliable with fallback to normal mode
6 : LAPM reliable with fallback to MNP mode
7 : MNP reliable with fallback to normal mode
AT%An async tolerance
0 : basic ASI (+1% to -2.5%)
1 : extended ASI (+2.3% to -2.5%)
50

AT%Bn modem speed
0 : V.34_Adaptive
1 : V21_300 / FAX 300
2 : B103_300
3 : V22_1200
4 : B212_1200
5 : V22_2400
7 : V23_1200
8 : V26b_1200
9 : V26b_2400
10 : V27_2400
11 : V27_4800
13 : V29_7200
14 : V29_9600
15 : V32_4800
16 : V32b_7200
17 : V32_9600T
18 : V32_9600Q
19 : V32b_12000
20 : V32b_14000
26 : V34_19200
27 : V34_24000
28 : V34_28800
29 : V32t_16800
30 : V32t_19200
31 : V34_4800
32 : V34_7200
33 : V34_9600
34 : V34_14400
35 : V34_16800
36 : V34_21600
37 : V34_26400
38 : V34_12000
40 : V34_2400
41 : V34_31200
42 : V34_33600
43 : V17_7200
44 : V17_9600
45 : V17_12000
46 : V17_14400
47 : V32b_Adaptive
AT%Cn data compression on/off
0 : data compression off
1 : data compression on
51

AT%Dn DTR off-to-on actions
0 : DTR off-to-on normal (108.2)
1 : DTR off-to-on dial/ans according to ring-in(108.1)
AT%En auto retrain control
0 : auto retrain disable
1 : auto retrain enable
AT%Sn display current line status
0 : display local status
1 : display remote status
AT%Gn auto fall forward/fallback enable
0 : auto fall forward/fallback disable
1 : auto fall forward/fall back enable
AT%Un autobauding on/off
0 : autobauding off
1 : autobauding on
AT-Cn calling tone on/off
0 : calling tone off
1 : calling tone on
AT-V display versions
AT-Rn read DSP ram content (for test only)
AT-Wn=mm write DSP ram content (for test only)
52
5.2 Dial Modifiers
Table 5-2 Dial Modifiers for AT and V25bis command
CODE Function Description
'T' or 't' enable tone dial
'P' or 'p' enable pulse dial
'0' to '9'' dial digit

A' to 'D'
'a' to 'd'
'*', '#'
',' pause
'!' flash hook
'W' or 'w' wait for dial tone

or ':'
';' return to idle after dial
'@' or '=' wait for quiet answer (silence)

“@” intelligent dial polling
'R' or 'r' reverse to the answer mode
'Sn' or 'sn' dial stored tel number n
'+' cascade the tel number to the next one
'-' or '(' or ')' do nothing

or ' '
53
5.3 Result Codes
Table 5-3 AT Command Result Codes
Short Long form
0 OK
1 CONNECT
2 RING
3 NO CARRIER
4 ERROR
5 CONNECT 1200
6 NO DIAL TONE
7 BUSY
8 NO ANSWER TONE
9 None
10 CONNECT 300
11 CONNECT 600
12 None
13 CONNECT 1800
14 CONNECT 2400
15 CONNECT 3600
16 CONNECT 4800
17 CONNECT 7200
18 CONNECT 9600
19 CONNECT 12000
20 CONNECT 14400
21 CONNECT 16800
22 CONNECT 19200
23 CONNECT 21600
54
Table 5-3 Result Codes (cont.)
Short Long form
24 CONNECT 24000
25 CONNECT 26400
26 CONNECT 28800
27 CONNECT 32000
28 CONNECT 38400
29 CONNECT 57600
30 CONNECT 76800
31 CONNECT 115200
32 CONNECT 31200
33 CONNECT 33600
55
5.4 V.25bis Auto call Unit
V.25bis auto call unit is used for auto calling in asynchronous and synchronous data
formats.
1. V.25bis Commands
a. CRNx - Call request - dial a phone number (x) entered on DTE keyboard.
b. CRSy - Call request - dial a phone number stored in specified memory
address (y). y=0-9.
c. PRNy;x - Program number - store a phone number (x) in specified
memory address (y). y=0-9
d. RLN - Request list of all stored numbers.
e. CIC - Connect incoming call. Auto answer enable.
f. DIC - Disregard incoming call. Auto answer disable.
2. V.25bis Responses
a. INC - Modem detects an incoming call.

b. INV - Modem received invalid command entry.
c. VAL - Modem received valid command entry.
d. LSN - Modem responses LSN when received RLN command.
e. CNX - Connection.
3. V.25bis Call Failure Responses
a. CFIET - Busy tone had been detected

b. CFIAB - Modem aborted a call.
c. CFIRT - Ringback timeout.
d. CFICB - Modem busy.
e. CFINS - No phone number is stored.
f. CFIND - No dial tone is detected.
56
CHAPTER 6 : MAINTENANCE
CHAPTER 6
MAINTENANCE
CONTENT
6.1 Description
6.2 Instruments
6.3 Periodic Maintenance
6.4 Troubleshooting
6.5 Return Procedure
57
6.1 Description
This chapter gives you the information of maintenance and the required instruments in
order to let you recover the troubles quickly.
6.2 Instruments
The only instrument you need is a mult-meter, due to the embedded digital and analog
test abilities.
6.3 Periodic Maintenance

For every three months, you should do the following jobs.
(A) Turn the power off, clean the modem, check the plugs, make sure all the
connectors are connected firmly.
(B) Be sure that the indicators function well.
6.4 Troubleshooting
Once the TAINET Network Series Modem malfunctions, please check and record the
indicators at the moment then turn the power off. Consequently, make sure the IC's on
printed circuit board are firmly sited. Try to turn the power on again, if the trouble still
exists, please follow the procedures below.
1) Power Unit
• Make sure you get a proper power source. If no indicator is lighted,

probably the problem is the power unit.
• Check the power fuse; if it is broken, replace it.
2) RS-232 Interface
• Do the AL (local analog loopback) test, feed some data into the modem
and check if they were returned correctly.
• Please make sure the interface is connected firmly; also check if the cable
is in good condition.
6.5 Return Procedures
We suggest the individuals who hold a malfunctioned the TAINET Network Series
Modem would contact with your local representative or distributor of Tainet, or just
directly access our customer service department as soon as possible in order not to
cause catastrophe. You may find the contact address and phone number in the cover
sheet of this manual.
58
APPENDIX 1: T-336Cx S-REGISTER TABLE
No Default Unit Function Description

S0 1 times Auto-answer Ring Count
S1 0 times Current Ring Count (read only)
S2 43 decimal Escape Char
S3 13 decimal CR Char
S4 10 decimal LF Char
S5 8 decimal Backspace Char
S6 2 second Pause Before Blind Dial
S7 45 second Wait for Carrier Time
S8 2 second Pause for Comma
S9 6 100ms Carrier Validation Time
S10 15 1/.1s Lost Carrier Detect Time
( 1 sec unit for V34/V32bis/V32)
(0.1 sec unit for V22bis/V22)
S11 95 ms DTMF Tone Duration
S12 14 100 ms Guard Time (Escape Sequence Pause)
S13 19 binary Bit-Mapped Options (set/clear)
bit 4,3,2,1,0 - DTE Speed
0 - 300 bps
1 - 600 bps
2 - 1200 bps
3 - 1800 bps
4 - 2400 bps
5 - 3600 bps
6 - 4800 bps
7 - 7200 bps
8 - 9600 bps
9 - 12000 bps
10 - 14400 bps
11 - 16800 bps
12 - 19200 bps
13 - 21600 bps
14 - 2400 bps
15 - 26400 bps
16 - 28800 bps
17 - 32000 bps
18 - 38400 bps
19 - * 57600 bps
20 - 76800 bps
21 - 115200 bps
22 - 31200 bps
23 - 33600 bps
bit 7,6,5 - reserved
S14 00001010 binary Bit Mapped Options(set / clear)
bit 0 *0 - AT-C0 calling tone off
1 - AT-C1 calling tone on
bit 1 0 - ATE0 echo off
*1 - ATE1 echo on
bit 2 *0 - ATQ0 response on
1 - ATQ1 response off
bit 3 0 - ATV0 response code
*1 - ATV1 response word
bit 4 - reserved
bit 5 *0 - ATT Tone Dial
1 - ATP Pulse Dial
59
bit 6 - reserved
bit 7 *0 - ATA Answer
1 - ATD Originate
S15 reserved
S16 01000000 binary Bit Mapped Options(set / clear)
bit 0 *0 - AT&T0 Test Pattern off
1 - AT&T10,&T7,&T8 Test Pattern on
bit 1 *0 - RDL off
1- RDL on
bit 2 *0 - AT&T0 LAL off
1 - AT&T1,T8 LAL on
bit 3 0 - AT&T0 LDL off
*1 - AT&T3 LDL on
bit 4 *0 - AT&T0 RDL off
1 - AT&T6,T7 RDL on
bit 5 - reserved
bit 7,6 - test pattern selection
00 - reserved
*01 - AT%T1 511 pattern
10 - reserved
11 - reserved
S17 reserved
S18 0 minute Modem Test Timer(minute)
S19 00011100 binary Bit Mapped Options(set/clear)
bit 0,1 - V25bis character framing
*00 - Async
01 - HDLC
10 - BSC
11 - reserved
bit 2 *1 - NRZ / 0 NRZI
bit 3 *1 - flag idle / 0 mark idle
bit 5,4 - word length
00 - 7-bit data, even parity, 1 stop bit
*01 - 8-bit data, no parity, 1 stop bit
10 - 7-bit data, odd parity, 1 stop bit
11 - 7-bit data, no parity, 2 stop bit
bit 6 - DTR off cause busy out /* nothing
bit 7 *0 - V.32bis fast training disable
1 - V.32bis fast training enable
S20 Reserved
S21 00000101 binary Bit Mapped Options
bit 1,0 - DCD control
00 - AT&C0 DCD forced on
*01 - AT&C1 DCD on after connect
10 - V.13 HDX
11 - V.23 HDX
bit 2 0 - AT&R0 RTS normal
*1 - AT&R1 RTS forced on
bit 4,3 - DTR on-to-off action
*00 - AT&D0 Ignore(force on)
01 - AT&D1 recall command mode
10 - AT&D2 Disconnect
11 - AT&D3 reset modem
bit 5 *0 - CTS off in retrain (CCITT)*
1 - CTS follows RTS (EIA)
bit 6 *0 - AT&S0 DSR forced on
1 - AT&S1 DSR on after connect
bit 7 - reserved
60

bit 1,0 - speak volume
00 - low
*01 - medium
10 - high
11 - reserved
bit 3,2 - speak control
00 - off
*01 - speaker on until carrier detected
10 - always on
11 - off when dial
bit 6,5,4 - result code and call progress
000 - ATX0 CONNECT without speed
message, blind dial, no busy
tone(Basic Code)
001 - reserved
010 - reserved
011 - reserved
100 - ATX1 CONNECT with speed
message, blind dial, no busy
tone(Dialn Tone)
message, wait for dial tone, no busy
tone
message, blind dial, check busy
tone(Busy Tone)
*111 - ATX4 CONNECT with speed
message, wait for dial tone, check
busy tone(Dial+Busy Tone)
bit 7 0 - AT&P0 Make/Break ration USA
(39%)
*1 - AT&P1 Make/break ratio UK
(33.3%)
S23 00100001 binary Bit Mapped Options (set / clear)
bit 0 0 - AT&T5 slave RDL disabled
*1 - AT&T4 slave RDL enabled
bit 1 *0 RDL by 140 disable
1 RDL by 140 enable
bit 2 *0 AL by 141 disable
1 AL by 141 enable
bit 3 *0 - AT%A0 basic ASI (-2.5% to +1%)
1 - AT%A1 extended ASI (-2.5% to +2.3%)
bit 5,4 - data length on direct mode
00 - 8 bits (6-N-1)
01 - 9 bits (7-N-1)
*10 - 10 bits (8-N-1)
11 - 11 bits (8-Stuff Parity –1)
bit 7,6 - guard tones
*00 - AT&G0 Disabled
01 - AT&G1 550 Hz
10 - AT&G2 1800 Hz
11 - reserved
bit 1,0 - DTR off-to-on control
*00 - AT%D0 normal (108.2)
01 - AT%D1 dial/ans according to ring-
in (108.1)
61
10 - reserved
11 - reserved
bit 3,2 - reserved
bit 7-4 - Login check
0000..1001 - #0..#9
1010 - ALL
1011 By NMS
*1100.. 1111 Disable security check
S25 00 100ms DTR Debounce Time
bit 3,2,1,0 - DTR drop detection time
bit 7,6,5,4 - DTR rising detection time
S26 0 10ms RTS to CTS Delay
S27 00001000 binary Bit Mapped Options(set /clear)
bit1,0 - data mode data format
*000 - AT&Q0,&M0 async data mode
001 - AT&Q1,&M1 sync data mode
010 - reserved
011 - reserved
bit 2 remote status enable / *disable
bit 3 *remote access on / remote access off
bit 5,4 - sync transmit clock source
*00 - AT&X0 internal clock
01 - AT&X1 external clock
10 - AT&X2 slave (loopback) clock
11 - reserved
bit 7,6 - line type
*00 - AT&L0 dial line
01 - AT&L1 2-wired leased line
10 - AT&L2 4-wired leased line
11 - reserved
bit 0 1 - -2 to -35 dBm receive dynamic range
*0 - -12 to -44 dBm receive dynamic range
bit 1 - reserved
bit 3,2 - disconnect option
*00 - send clear down before disconnect
01 - immediately disconnect
10 - reset modem on disconnect
11 - reserved
bit 5,4 - ENQ/ACK control
*00 - AT\H0 no ENQ/ACK
01 - AT\H1 to host (simulate peripheral)
10 - AT\H2 to peripheral (simulate host)
11 - reserved
bit 6 - fix speed function
bit 7 - reserved

bit 1,0 - command selection
00 - dumb mode
*01 - Hayes AT command mode
10 - V.25bis command mode
11 - reserved
bit 2 0 Line break
*1 Send continuous space
bit 3 0 - AT%E0 auto retrain off
*1 - AT%E1 auto retrain on
bit 4 *0 - front panel unlock
62
1 - front panel lock

bit 6,5 00 - AT%G0 auto FB/FF disable
*01 - AT%G1 auto FB/FF enable
10 - AT%G2 Auto FF off but FB on
11 - reserved
bit 7 0 - AT%U0 autobauding off
*1 - AT%U1 autobauding on
S30 13 -dBm Leased Line Tx Level (0..-31 dBm)
bit 0 - leased to dial
0 - manual*
1 - auto
bit 1 - dial to leased
0 - manual*
1 - auto
bit 2 - V.32 auto FFFB by Retrain
bit 3 - reserved
bit 7,6,5,4 - backup tel. (#0~9)/no dial backup
S32 0 - reserved
S33 Test time(minute)
S34 Test time(second)
S35 30 second OH by DTR timer (default 30 seconds)
S36 D to L timer (default 60 mins)
S37 2 second Redial delay, Immediately 1….255 Second
S38 00000000 binary V34 Baud Rate Selection
bit 0 - enable 2400 /disable 2400
bit 1 - reserved (this bit always must be
set)
bit 7,6 Break type during Normal, V.42 or
MNP operation
00 AT\K0 break -0 (destructive)
01 AT\K1 break -1(nondestructive)
*10 AT\K2 break -2 (queue)
11 - reserved
S39 reserved
S40 Call back time(unit : second)
0 - Disable acll back
1..255 - Second
bit 1,0 - connect message display
00 - ATW0 CONNECT with DTE
speed
*01 - ATW1 CONNECT with CARRIER,
PROTOCOL and COMPRESSION
10 - ATW2 CONNECT with DCE speed
11 - reserved
bit 2,3,4,5 - reserved
bit 7,6 - DTMF level selection (Low Band /
High Band)
00 -8 / -6 dBm
01 -10 / -8 dBm
10 -12 / -11 dBm
11 -11 / -9 dBm
63

bit 0 reserved
bit 1 0 - receive power drop control off
*1 - receive power drop control on
bit 2 *0 - enable V.34 asymmetrical rate
1 - disable V.34 asymmetrical rate
bit 3 *0 - disable dial to dial
1 - enable dial to dial
bit 7,6,5,4 0000-1010 - Pre-Emphasis Filter Suggestions
Number 0-A
*1011-1111 - Ignore Pre-Emphasis Filter
S43 00000000 binary Fast Connect Control
bit 3,2,1,0 - Answer tone length (100ms time
base.) 0ms-1500ms
bit 4 - Fast connect on/*off (1/*0)
S44 Reserved
S45 Reserved
S46 Reserved
S47 Reserved
S48 Reserved
S49 Reserved
bit 1,0 - FAX/DATA Mode Selection
*00 - (DATA mode)
01 - reserved
10 - reserved
11 - reserved
bit 2 - reserved
bit 7,6,5,4,3 - reserved
bit 1,0 - flow control
00 - AT\Q0,AT&K0 no flow control
01 - AT\Q1,AT&K1 XON/XOFF flow
control
10 - AT\Q2,AT&K2 CTS only flow
control
*11 - AT\Q3,AT&K3 RTS/CTS flow
control
bit 3,2 - DTE/DCE speed convert
*00 - AT\J0 enable DTE/DCE speed
convert
01 - AT\J1 disable DTE/DCE speed
convert
10 - reserved
11 - reserved
bit 7,6,5,4 - auto dial telephone number
S52 0 dec AT%B Desired Highest DCE Speed
*0 - adaptive baud rate
1 - V21_300
2 - B103_300
3 - V22_1200
4 - B212A_1200
5 - V22b_2400
6 - reserved
7 - V23_1200(1200Tx / 75Rx)
8 - V26b_1200( V26b_1200 )
9 - V26b_2400( V26b_2400 )
64
10 - reserved
11 - reserved
13 - reserved
14 - reserved
15 - V32_4800
16 - V32b_7200 TCM
17 - V32_9600 TCM
18 - V32_9600 QAM
19 - V32b_12000T
20 - V32b_14400T
26 - V34_19200
27 - V34_24000
28 - V34_28800
29 - reserved
30 - reserved
31 - V34_4800
32 - V34_7200
33 - V34_9600
34 - V34_14400
35 - V34_16800
36 - V34_21600
37 - V34_26400
38 - V34_12000
40 - V34_2400
41 - V34+_31200
42 - V34+_33600
43 - reserved
44 - reserved
45 - reserved
46 - reserved
47 - V32b_Adaptive
bit 3,2,1,0 protocol type
0000 - AT\N0 normal mode
0010 - AT\N2 MNP reliable mode
*0011 - AT\N3 auto-reliable mode
0100 - AT\N4 LAPM reliable
0101 - AT\N5 LAPM reliable with
fallback to normal mode
0110 - AT\N6 LAPM reliable with
fallback to MNP mode
0111 - AT\N7 MNP reliable with
fallback to normal mode
bit 4 0 - AT%C0 data compression off
*1 - AT%C1 data compression on
S54 Bit Mapped Options
bit 3,2,1,0 Call back telephone number
0000..1001 - #0..#9
1010…1111 - Off
Bit 3-0, Call back telephone number
bit 7,6,5,4 Send login word
0000..1001 Send security password #0~#9
1010..1111 - reserved
S55 backup speed V.34+ 33600 .. V.21 300
S56 13 -dBm Dial Line Tx Level
bit 1,0 - retrain threshold
*00 - High
65
01 - medium
10 - Low
11 - reserved
bit 2 - reserved
bit 3 Security password pass through
bit 7,6,5,4 - reserved
S58 Retrain times , 0 ~ 255 (default 2 )
S59 Profile Checksum
S60 0 decimal Power-up # (AT&Yn)
66
APPENDIX 2: T-336Cx LCD MENU QUICK REFERENCE
APPENDIX 2: T-336Cx LCD MENU QUICK REFERENCE

Version screen Main Screen Version screen
↓ = “ENTER” KEY
V.34 Modem V34 Adapt V42bis SN: xxxxxxxxxxxx ↑ = “EXIT” KEY
V:2.XX/BA/8.050 D ANS Standby V:2.XXX/BA/8.050
→ = “>” KEY
← = “<” KEY
Scroll item & parameter by “>” or “<”
Note1: Only available when connected and
L TARGET SELECT L TARGET SELECT # Note 1 Remote Access function is enabled
LOCAL REMOTE
MENU STATUS DIAL PROTOCOL TEST CONFIG. MODEM CONFIG. DTE COMMAND LINE SETUP PROFILE
Tx Level Dial a Number Protocol Type Clear All Speed DTE Speed Command Mode Line Type Load
Rx Level Edit a Number Discon. Method LAL ORG/ANS Mode Flow Control Auto Baud Leased To Dial Power Up
I S/N Ratio Ring Times Login Check DL Auto Retrain DTR Off Action Framing Backup Tel Initial
EQM Progress Tone Send password RDL Tx Clock DTR Control Async form Backup Speed Front Lock
T F-Shift Redial Delay Call Back No. RDL Grant RTRN. Threshold RTS Control Idle Char Dial to Leased Password Edit
F F-Shift Dial Type Call Back Timer Error Count ASI Overspeed DSR Control Dial to Leased Timer Sreg Edit
E Delay SPK Control Connect Code B.E.R Test Make/Break DCD Control Dial To Dial Save
Phase jitter SPK Volume Compress Force Off Hook Data Format
M F Echo OH By DTR Total Bits
DTE Pump edit AL by 141
Retrains FB\FF Ctrl RDL by 140
Menu Retrain LL Tx Level
RX Baud DL Tx Level
TX Baud Remote Access
RX Freq Dynamic Range
TX Freq
RX Speed
TX Speed
Tx Power Off
Interface indicators
67
APPENDIX 3:T-336Nx LCD MENU QUICK REFERENCE
APPENDIX 3:T-336Nx LCD MENU QUICK REFERENCE

↓ = "ENTER” KEY
↑ = "EXIT” KEY
→= “>” KEY
NMC - 16 ←= “<” KEY
V5.xx-11 ID=001 Card Selection = "CARD#” KEY
Go to the top layer of menu tree = "HOME” KEY
↓ ↑
01Select Menu → 01Select Menu → 01Select Menu → 01 Select Menu → 01 Select Menu → 01 Select Menu → 01 Select Menu → 01 Select Menu → 01 Select Menu
Modem Control Current Alarm Ararm Config NMC ID NMS Speed NMS Interface NMS Protocol NMS Diagnostic Copy Profile
← ← ← ← ← ← ← ←
↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑ ↓ ↑
01 Secect Menu 01 Current Alarm 01 Alarm Config → RXL Low 01 NMC ID External Clk
RS-485 port
RS-232 with CTS
ASYNC_HDX
HDLC_NRZI_HDX
NAK COUNT
BCC COUNT
01 Copy Profile
3333333333333333 No alarm or alarm occur Group Setup 001 ~ 253 2400
← RXL High
SNR Bad 4800
RS-232 no CTS HDLC_NRZ HDX Pending Block
Chk Dial Line 7200

9600
↓ ↑ ↓ ↑ Dial Backup
DTR Off 12000
14400
V34 Adapt Direct
RXL Low → 01 Group Setup TD/RD Inactive
N-Echo High 16800
RXL High
D ANS Standby XXXXXXXXXXXXXXXX 19200
SNR Bad ← 21600
DTR Off
N-Echo High 24000
Stand Alone 26400
TXD Inactive
Modem Menu RXD Inactive 28800
Connect Fail 31200
Rmt RXL low 33600
Rmt RXL high 36000
Rmt SNR bad 38400
Rmt DTR off 40800
Rmt N-Echo 43200
No Dial Tone 45600
Dial Backup 48000
Card Fail 50400
52800
55200
57600
68

T336CxNxNDx V17

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TAINET

V1.7 07008-00027 2004/11/15

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Consult the dealer or an experienced radio/TV technician for help.

This booklet is available from the US government Printing Office, Washington, DC

CAUTION: Any changes of modifications not expressly approved by the grantee of

COMPANY: SUMMIT MICRO DESIGN, INC.

TEL NO: (408)739-6348

1.2 Technical Specifications

1.3 Ordering Information

CHAPTER 1： TAINET MODEM INTRODUCTION

• The TAINET Network Series Modem T-336Cx/Nx/NDx are high performance,

T-336Cx/Nx/NDx fully comply with ITU-T recommendations V.34, V.32bis, V.32,

Operating Mode MOD. Carrier Symbol Constellation

V.32bis 14400 T TCM 1800 2400 128

Symbol Rate (Baud) Low Carrier (Hz) High Carrier (Hz)

• Transmit Level Lease-Line: 0~-31 dBm 1 dB stepadjustable.

• Line Impedenance : Balance 600Ω ± 10 %

• Longitude Balance :> 60 dB

• Dial Line Characteristics:

Maximum Current :120 mA

• Auto Answer : V.32bis/V.32/V.22bis/V.22 comply with ITU-T V.25 &

• Calling Tone : Comply with ITU-T V.8, V.25

• Receive Range : -12 ~ -44 dBm, -2 ~ -35 dBm

• Dynamic Range : 0 ~ -44 dBm

• Equalization : Automatic Adaptive Equalizer

• Frequency Shift : Compensation cancel at least of ± 7Hz offset

• Scrambler & Descrambler : Comply with ITU-T V.34,V.32bis,V.32,V.22bis, V.22

• Data And Control Signal : Output Voltage ± (6 ~ 12)V

• Tx Clock Source : Internal/External/Loopback

• Test Features : V.54/V.52 , LAL/DL/RDL

• Power Requirement : 90 ~ 265 VAC Auto Range, 47 ~ 63 Hz

• DTE Interface: EIA RS-232C, CCITT V.24/V.28

Pin V.24 DESCRIPTION Source

• T-336Cx Stand alone V.34 33.6kbps modem

2.3 Site Requirements

2.4 Site Selection

2.5 AC Electrical Outlet Connection

2.6 Connecting With Dial Line

2.7 Connecting With Leased Line

2.3 Site Requirements

The FCC requires telecommunications equipment to withstand electrical surges

Pin. Color “PHONE”pin defined

Pin. Color “Dial Line”pin defined

Figure 2-1 Dial Line connecting diagram

Leased TX/2W ORG Back-up Line

Figure 2-2 Leased Line connecting diagram

3.1 The Front Panel Description

3.2 The Rear Panel Description

3.3 Operating the TAINET Network Series Modem

3.4 The Menu Tree

3.5 Detailed Description of the Menu Tree

3.1 The Front Panel Description

Figure 3-1 TAINET T-336Cx Front Panel

3.2 The Rear Panel Description

Figure 3-2 TAINET T-336Cx Rear Panel

2. LED indicator : total 10 indicators as following: