Pad 4

Model PAD-4
Distributed Power Module NAC Expander

Installation, Operation and Maintenance Manual
Siemens Industry
Industry,, Inc.
P/N 315-050217-4 Building Technologies Di
echnologies vision
Division
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Table of Contents
PREFACE ................................................................................................................................. ii
1. DESCRIPTIONS ....................................................................................................................... 1
1.1 General Design Features ..................................................................................................... 1
1.2 Regulatory Standards .......................................................................................................... 2
1.3 General Specifications ......................................................................................................... 2
2. INSTALLATION ........................................................................................................................ 5
2.1 Mounting the Enclosure ....................................................................................................... 5
2.2 Power Supply Mounting ....................................................................................................... 5
2.3 Control Unit Mounting .......................................................................................................... 6
2.4 Wire Routing ......................................................................................................................... 6
2.5 Terminal Descriptions and Electrical Ratings ...................................................................... 7
2.6 Wiring The PAD-4 ................................................................................................................ 8
2.6.1 AC Wiring ............................................................................................................................. 9
2.6.1.1 Wiring from FP2011-U1/FP2012-U1 to PAD-4-MB ............................................................ 10
2.6.2 Battery Connection ............................................................................................................. 11
2.6.2.1 Multiple Module Battery Connection .................................................................................. 12
2.6.3 Class B (Style Y) Input/Output NAC Wiring ....................................................................... 13
2.6.4 Class A (Style Z) Input/Output NAC Wiring ........................................................................ 14
2.6.5 Auxiliary Power Supply Output ........................................................................................... 15
2.6.6 Common Trouble Relay ..................................................................................................... 15
2.6.7 AC Fail Relay ..................................................................................................................... 16
2.7 Ground Fault Detection Enable/Disable ............................................................................. 17
2.8 Input Emulation .................................................................................................................. 17
3. CONNECTION TO CONTROL UNITS ................................................................................... 19
4. SAMPLE APPLICATIONS ...................................................................................................... 33
4.1 Notification Appliance Power Applications ......................................................................... 33
4.2 Door Holder Applications ................................................................................................... 38
5. PROGRAMMING .................................................................................................................... 39
5.1 Dip Switch Settings ............................................................................................................ 39
5.1.1 Selecting the Input/Output Configuration ........................................................................... 40
5.1.2 Setting the Auxiliary Output ................................................................................................ 41
5.1.3 Setting the Input’s NAC Control ......................................................................................... 41
5.1.4 Setting the AC Power Fault Reporting Delay on the Global Trouble Relay ....................... 42
5.2 Jumper Settings ................................................................................................................. 42
6. REFERENCE DATA ............................................................................................................... 43
6.1 Wire Selection Guides ........................................................................................................ 43
6.1.1 Resistance of Solid Copper Wire ....................................................................................... 43
6.2 Battery Size Calculations ................................................................................................... 44
7. COMPATIBLE DEVICES ........................................................................................................ 45
8. TROUBLESHOOTING ........................................................................................................... 45
8.1 LED Indicators .................................................................................................................... 45
8.2 Improper Operation ............................................................................................................ 46
8.3 Trouble Conditions ............................................................................................................. 46
9. BATTERY MAINTENANCE .................................................................................................... 47
10. GLOSSARY ............................................................................................................................ 47
APPENDIX A: Compatible Legacy Devices For PAD-4 and PAD-4-CLSA ............................ 49

PREFACE
Along with the use of this Owner’s Manual, the appropriate following standards and the manufacturers’
instructions for initiating and signaling devices should be used to install and maintain a functioning Fire
Alarm Signaling System.
NFPA 70 National Electrical Code
NFPA 72 National Fire Alarm Code
NFPA 101 Life Safety Code
C22.1 Part 1 Canadian Electrical Code
ULC-S524 Installation of Fire Alarm Systems
Other Standards - Contact the authority having jurisdiction for other standards that may apply.
For Publications, contact:

National Fire Protection Association
Batterymarch Park
Quincy, MA 022691
ii

PAD-4 Installation, Operation and Maintenance Manual
If input 1 controls outputs 1 and 2, and input 2 controls

1. DESCRIPTIONS outputs 3 and 4, a fault condition on output 3 or 4 will
cause input 2 to indicate trouble. The fault does not
The Model PAD-4 from Siemens Industry, Inc. is a
affect input 1.
notification and auxiliary power expander that
provides up to 9 amps of 24 volt DC for powering Once the PAD-4’s inputs and outputs are activated, the
notification appliances and auxiliary devices. The fire alarm control unit will not be able to sense trouble
PAD-4 provides its own AC power connection, conditions through its notification appliance circuit
connected to the PAD-4 input circuits. Use the PAD-4
battery charging circuit, and battery connections.
trouble relay when it is necessary to monitor trouble
Used with a fire alarm control unit, this enables
conditions and active alarm conditions at the same time.
you to connect and distribute power to many more
devices than your control unit may normally allow.
Notification Appliance Circuit Outputs
1.1 GENERAL DESIGN FEATURES The PAD-4 has four dedicated, power-limited, NAC
outputs that can be configured as two Class A
Inputs (Style Z) or four Class B (Style Y) circuits. An
additional two Class A (Style Z) circuits are
The PAD-4 has two optically isolated inputs that
available when the PAD-4-CLSA module is in-
provide the connection from the fire alarm control
stalled.
unit notification appliance circuit to the PAD-4. The
inputs also provide a connection for returning a The PAD-4 provides four configuration options
trouble condition to the control unit notification that will set the outputs as slaves that will follow
appliance circuit. the input. If the inputs are on constant, they may
be configured as ANSI temporal code, Sync
The fire alarm control unit supervises its notification
strobe/horn operation or carbon monoxide (CO)
appliance circuit used for communicating with the
alarms.
PAD-4 the same way it supervises ordinary NACs.
The inputs on the PAD-4 monitor the polarity of the Each of the four outputs is rated at 3 amps,
voltage coming from the fire alarm control unit’s though a total of 6 amps maximum (or 9 amps
NACs to determine when to operate the notifica- depending on power supply) can be drawn from
tion appliance circuit outputs. The PAD-4 emulates the PAD-4 outputs. The yellow Output LEDs
the trouble behavior of a NAC by opening the EOL (DS1-DS4) flash to indicate an open, shorted or
supervision current for trouble conditions. Note over-current condition on its associated NAC
that the PAD-4 will sense the polarity of the fire Output. The yellow Output LEDs are on steady to
alarm control unit’s NACs to drive the outputs indicate activation of the associated NAC output.
whether or not the supervision connection is intact.
Selection of which input controls which output,
The following situations will open the EOL supervi- and which inputs are Class A (Style Z) and Class
sion at the inputs indicating a trouble condition: B (Style Y) is done using the 10 position DIP
switch on the printed circuit board. Refer to
• No or low AC power. For AC Fail reporting, refer to
Section 5 for DIP switch settings.
Section 5.1.4 for configuration and response times.
• No and low battery condition. The PAD-4-CLSA module, optional for UL installa-
tions but required for ULC installations, provides an
• Ground fault to the output wiring.
additional two Class A (Style Z) notification appli-
• Auxiliary power supply output over-current ance circuits to the PAD-4. When configured for
condition. ULC operation, it also provides a Form A contact for
• NAC output open, shorted or over-current ground fault detection signaling. One PAD-4-CLSA
condition on outputs associated with its input. module can be mounted on the PAD-4. Refer to
• Failure of the battery charger. P/N 315-050254 for more information.
Notes:
Auxiliary Power Output
If input 1 controls all four outputs, a fault on any output
will cause input 1 to indicate trouble. The fault does not The PAD-4 has a dedicated, power limited,
affect input 2. auxiliary output that can be configured in two

different ways. The auxiliary output can either be Ground Fault Detection
non-resettable (always on), or configured to
The PAD-4 monitors for ground faults to the
switch off when the AC power goes off to con-
output wiring. When detected, the unit lights the
serve the battery standby power. When the
yellow GRND LED (DS6) and de-energizes the
auxiliary power is configured to switch off, there is
trouble relay and the input supervision relays. In
a 30-second delay before the auxiliary power is
addition, in ULC configuration, the ground fault
turned off after the AC power goes off. The
relay on the PAD-4-CLSA module is also ener-
auxiliary power is for supplementary purposes
gized. Ground fault indication is common to all
only if it is configured to switch off when AC is lost.
output circuits and all NAC outputs are to be in
The Auxiliary Power Output is rated at 3 amps. Only the same evacuation zone.
a total of 6 amps maximum (or 9 amps depending
on power supply) can be drawn from the PAD-4 Environmental
outputs. The yellow Aux PS LED (DS5) will flash to All hardware is suitable for use only in an indoor,
indicate an over-current condition on the output. dry environment.
The LED will go off if the battery conservation
feature is active. Power Limiting
The AC power and battery wiring are not power
Common Trouble Relay
limited. All other circuits leaving the control unit
The PAD-4 includes a Form C trouble relay that will are power limited.
de-energize for the following trouble conditions:
• No or low AC power (Refer to Section 5.1.4 Transient Protection
for delay time settings). Transient protection devices are provided where
• No and low battery condition. needed to meet the requirements of UL864.
• Ground fault to the output wiring.
1.2 REGULATORY STANDARDS
• Auxiliary power supply output over-current
condition. The PAD-4 meets the requirements of industry
and government regulatory agencies as noted.
• NAC output open, shorted and over-current
condition.
Federal Communications Commission
• Failure of the battery charger.
The PAD-4 meets the Class A requirements of
AC Fail Relay the Code of Federal Regulations (CFR 47), Part
15, subpart B, for electromagnetic field emissions.
A normally energized relay will be de-energized
after no or low AC power without delay. A Form A
contact provides a local signaling (audible and Underwriters Laboratories
visual) of an AC fail at the protected premises. The PAD-4 control unit is listed under UL Standard
864 and UL 1481. It also complies with ULC
Battery Charging and Supervision S527.
The PAD-4 provides a battery charging circuit for
charging sealed lead-acid batteries. The unit also 1.3 GENERAL SPECIFICATIONS
supervises for no and low battery conditions. Operating specifications for the PAD-4 are as
follows:
Battery Cutoff
In order to protect the batteries when AC fails, the Environmental
battery voltage is constantly monitored, and if it • Operating temperature
drops below 20.4V, all PAD-4 power will be cut 32 - 120°F (0 - 49°C)
off. Power will be restored when AC is restored. • Relative humidity
Up to 93%RH @ 86°F (30°C) non-condensing

• Installation Environment • Maximum Standby Current: 1.0mA

Indoor, dry • Maximum Ripple: 100mVAC
Primary Supply Using FP2011-U1 External • Maximum Line Resistance:
Power Supply 3.0 ohms @ 3.0 amps
3.7 ohms @ 2.5 amps
• Primary Input Voltage: 120VAC/240VAC, 4.7 ohms @ 2.0 amps
50Hz/60Hz 6.3 ohms @ 1.5 amps
Primary Supply Using FP2012-U1 External • Maximum Voltage Drop: 9.0V
Power Supply • Ground fault impedance: 60K ohms (+), 15K
• Primary Input Voltage: 120VAC/240VAC, ohms (-)
50Hz/60Hz
Auxiliary Power Output
Secondary and Trouble Power Supply • Operating Voltage Range: 24 VDC Special
• 24 volt lead-acid battery set Applications
• Maximum Charge Voltage: 29.0 VDC • Current: 3 amps max (set to shutdown
when AC power fault for battery rating up
• Maximum Charge Current: 1.5A to 7.0 A.H.)
• Maximum Input Current: 15.3A • Power limited
• Battery capacity: up to 18 A.H. (See Section • Supervised for ground fault and short
6.2, Battery Size Calculation, when using
batteries over 7 A.H.) • Maximum Ripple: 100mVAC
• Ground fault impedance: 2K ohms +/-
Input Circuits Note: The auxiliary power is for supple-
• Two Input Circuits mentary purposes only if it is configured to
switch off when AC is lost.
• Connected to power limited source
• Supervised Common Trouble Relay
• Voltage Range: 24 VDC nominal • Contact Rating:
• Maximum Input Current: 7.0mA 2.0A, 30VDC maximum, resistive
• Form C Contact
Notification Appliance Circuits
• Operating Voltage Range: Special Application AC Fail Relay
24 VDC • Contact Rating:
Refer to Siemens Compatible Notification 2.0A, 30VDC maximum, resistive
Appliances (P/N 315-096363) or Faraday
• Form A Contact (Normally closed, open on
Compatible Notification Appliances (P/N 315-
fail)
096363FA), as applicable, for maximum
number per NAC Ground Fault Relay (on the PAD-4-CLSA
• Synchronized appliances permitted module)
• Maximum Alarm Current: 3.0A per circuit • Contact Rating:
(6.0A, or 9.0A depending on external power 2.0A, 30VDC maximum, resistive
supply, total for NACs and auxiliary power) • Form A Contact (Normally open, closed on
• Four Class B (Style Y) circuits or two Class A fail)
(Style Z) circuits. Two additional Class A (Style
Z) circuits are available when the PAD-4-
CLSA module is installed.
• Power limited
• Supervised

This page is left intentionally blank.

mounting on concrete, especially when moisture

2. INSTALLATION is expected, first attach a piece of ¾-inch plywood
to the concrete surface. Attach the PAD-4-ENCL
CAUTION:
enclosure to the plywood.
It is recommended that the printed circuit
boards be removed for any procedure that Consult the installation instructions, P/N 315-050081,
may cause dust, metal shavings, grease or included with the enclosure for proper mounting.
any such matter that may affect the circuit
boards and/or parts. 2.2 POWER SUPPLY MOUNTING
There may be several sources of power into Mount the PAD-4-ENCL enclosure to the wall
the control unit. Each source must be discon- before mounting the FP2011-U1 or FP2012-U1
nected prior to installing or connecting or power supply to the enclosure.
disconnecting wiring.
1. Make sure that the dedicated circuit breaker
Each output circuit is rated at 3 amps. DO for the FP2011-U1 or FP2012-U1 is turned off
NOT OVERLOAD. Overloading a circuit will at the mains.
cause it to shut down (power limit). 2. Place the housing for the FP2011-U1 or
Minimum Configuration: FP2012-U1 over the four studs provided in
the upper left corner of the PAD-4 enclosure.
1. Enclosure, Model ENCL/DOOR PAD-4, P/N
500-050081 3. Secure the FP2011-U1 or FP2012-U1 to the
enclosure by slipping the lock nuts over the
2. Power Supply, Model FP2011-U1, P/N 500- four studs. Tighten them securely.
450222 or Model FP2012-U1, P/N S54400-Z60-A1
See Figure 2-1 and the FP2011-U1
3. PAD-4-MB, P/N 500-650217 Installation Instructions, P/N 315-050222, for
details, or Figure 2-2 and the FP2012-U1
4. 7AH or 18AH Batteries, P/N 175-387141 or
Installation Instructions, P/N A6V10334250,
175-387194
for details as applicable.
5. Class A expansion module - model PAD-4- PAD-4-ENCL
CLSA, P/N 500-850254. Required for ULC

installations ONLY. FP2011-U1
Optional Configuration: FP2011-U1 Moun

ting
Studs (4 places)
1. Class A expansion module, Model PAD-4-

CLSA, P/N 500-850254. Optional for UL instal-
lations ONLY.
2. S3 Adaptor Plate, Model S3AP, P/N 500-650257
3. Battery Bracket, Model PAD-4-BATT-BRKT,
P/N S54430-B4-A1
Figure 2-1
Mounting the FP2011-U1
2.1 MOUNTING THE ENCLOSURE
(For indoor use only in dry environments)
The fire alarm control unit must be mounted in a
properly accessible location as required by appli-
cable codes. Any auxiliary battery box or other FP2012-U1 Moun
ting
Studs (4 places)
accessory not connected through a protective

device or a circuit designed for remote connection
must be within the same room and connected
through electrical conduit. Installation is to be done
only by qualified personnel who have thoroughly
read and understood these instructions.
When mounting the enclosure on interior walls, Figure 2-2
use appropriate screw anchors in plaster. When Mounting the FP2012-U1
5

2.3 CONTROL UNIT MOUNTING

PAD-4-MB is configured out of the box for ULC power-limited wiring. Improper wiring installa-
operation. Remove jumper on J2 for UL installation may cause improper operation. Avoid
tions. Leave jumper on J2 for ULC installations. pulling one multi-conductor cable for the
Refer to Figure 2-5 for location of this jumper. To entire system. Instead, separate high current
install the main board, install 4 screws loosely into input/output from low current.
the 4 bottom mounting holes for the PAD-4-MB in
Wiring within the cabinet should be routed
the enclosure. Slide the bottom of the board
around the perimeter of the cabinet. It should
behind the screws, aligning the screws with the
not cross the printed circuit board where it
slots in the board. Install a screw in the top left
could induce noise into the sensitive
and top right corners of the main board. Tighten
microeletronics or pick up unwanted RF noise
all fasteners. All mounting hardware is included
from the switching power supply circuit.
with the PAD-4 main board. See Figure 2-3 below
for details.
A G
PAD-4 Enclosure
FP2011-U1
FP2011-U1 Mou
nting
Studs (4 places)
B E
TB10
PAD-4-MB
Mounting PAD-4-MB
6/32 x 1/4 screws
(6 places)
C F
Figure 2-3
D
Mounting the PAD-4-MB
A. Non-power Limited - High Voltage (AC power) or B
B. Non-power Limited - High Voltage (AC power) or A
2.4 WIRE ROUTING
C. Non-power Limited - Battery wiring, if separate
Notes: enclosure required) or D
All high voltage and non-power limited wiring
must be kept separate from power limited D. Non-power Limited - Battery wiring, if separate
enclosure required) or C
wiring. A ¼” separation must be maintained,
with high voltage and non-power limited E. Power Limited or F or G
wiring running in separate conduit openings F. Power Limited or E or G
from power wiring. G. Power Limited or E or F
To avoid induced noise (transfer of electrical
Figure 2-4
energy from one wire to another), keep input
PAD-4 Wire Routing
wiring isolated from high current output and

2.5 TERMINAL DESCRIPTIONS AND ELECTRICAL RATINGS

Wire in accordance with the Authority Having Jurisdiction and Article 760 of the NEC NFPA 70 latest
edition and CEC.
To Connect External Wiring:
1. Loosen the screw of the terminal by turning it counterclockwise.
2. Insert the wire into the side of the terminal block.
3. Tighten the screw of the terminal block by turning it clockwise.
TABLE 2-1
PAD-4 TERMINAL DESCRIPTIONS
Terminal Description Ratings
T B 10
BRNOUT Brownout
PSSI Power Supply Signal Input
GND Circuit Ground 24V DC nominal, 9A max.
+24V DC_IN
TB11
1+ Input 1 (+)
1- Input 1 (-)*
24 VDC/VFW, 7mA max.
1 Input 1
2+ Input 2 (+)
T B 12
2- Input 2 (-)*
24 VDC/VFW, 7mA max.
2 Input 2
COM Common A C F ai l
2.0A @ 30 VDC, resistive
NC Normally Closed Contact
T B 13
NC Normally Closed Contact Global Trouble
COM Common 2.0A @ 30 VDC, resistive
NO Normally Open Contact
No Connection
T B 14
NAC1B+ NAC 1 Output (+) Even though each output
Special Application, 24 VDC, 3A max.

NAC1B- NAC 1 Output (-) is rated for 3 am ps, the
NAC2B+ NAC 2 Output (+) total current draw from
Special Application, 24 VDC, 3A max. the 4 NAC outputs and

NAC2B- NAC 2 Output (-)
the auxiliary power

T B 15
output m ust not exceed

NAC3B+ NAC 3 Output (+)
Special Application, 24 VDC, 3A max. 6 am ps for FP2011-U1

170W power supply or
NAC4B+ NAC 4 Output (+)
9 am ps for FP2012-U1
Special Application, 24 VDC, 3A max.
300W power supply
T B 16
AUX PWR Auxiliary Power Output (+)
SUPPLY+ 24 VDC, Special Application, 3A max.
AUX PWR SUPPLY- Auxiliary Power Output (-)
No Connection
No Connection
* For TB11 Input 1(-) and TB12 Input 2(-) use two conductors under one screw terminal.
This screw terminal requires 16-22 AWG for multiple conductor usage.
Terminal Blocks TB10 - TB16: 22 AWG Min., 12 AWG Max.

7

2.6 WIRING THE PAD-4

Remove all system power before installation, first battery and then AC. (To power up, connect the
AC first and then the battery.) Figure 2-5 shows the general layout of the PAD-4 main board. This
section also provides specific wiring details for accessories. Consult your control unit manual for specific
wiring information on the control unit being used. If you are using a Siemens control unit, see Section 3
for connections.
SERVICE DS8 DS6 DS1 DS2 DS3 DS4 10 9 8 7 6 5 4 3 2 1 DS7 DS5 DS11 BRNOUT PSSI GND +24V
PORT PWR JP7 OUT1 OUT2 OUT3 OUT4 S1 BAT AUX/PS BUSY
P2 TB10
ON
J3 J1* S2
J9
RESET
J6
B+
J10
B-
P1
1
J2**
J16
170W 10A
300W 20A
J4 J7
J11 J14
J12
1 1 1 1 1 1
TB11 TB12 J13 TB13 J5 TB14 TB15 TB16
_ _ _ _ J8 _
1+ 1- 1 2+ 2- 2 COM NC NC COM NO NOT + + + + +
INPUT 1 INPUT 2 TROUBLE USED NAC1B NAC2B (NAC1A) NAC3B NAC4B (NAC2A) AUX PWR SUPPLY
*J1 - Set Jumper J1 to 2-3 for normal operation

**J2 - Must be installed for Canadian installations. Must be removed for UL installations
Figure 2-5
PAD-4-MB Layout

2.6.1 AC Wiring
SUPERVISED
NON-POWER
LIMITED
12-14 AWG MIN. FP2011-U1
DISCONNECT POWER
BLOCK PROTECTION
WARNING
DESACTIVEZ L'UNITE
AVANT ENTRETIEN
BLACK (L)
REMOVING
TERMINAL
PRIOR TO
AC WHITE (N)
MAINS GREEN (G) NOTE: BRANCH CURRENT
MUST BE PROTECTED BY A
15A MINIMUM OVERCURRENT
DEVICE.
USER-SUPPLIED 12-14 AWG

WIRE FROM GROUND
GROUND LUG LUG TO FP2011-U1
IN PAD-4-ENCL
(TO CONNECT
GROUND WIRE
FROM AC MAINS)
CAUTION: INSTALL PLASTIC GUARD ON

AC MAINS (L, N, G)
Figure 2-6a
AC Wiring to FP2011-U1
SUPERVISED
NON-POWER
LIMITED
12-14 AWG MIN.
BLACK (H)
AC
MAINS
WHITE (N) FP2012-U1
GREEN (G)
USER-SUPPLIED 12-14 AWG

WIRE FROM GROUND
GROUND LUG LUG TO FP2012-U1 NOTE: BRANCH CURRENT
IN PAD-4-ENCL MUST BE PROTECTED BY A
(TO CONNECT 15A MINIMUM OVERCURRENT
GROUND WIRE DEVICE
FROM AC MAINS)
CAUTION: INSTALL PLASTIC GUARDS ON

AC MAINS (H, N, G)
Figure 2-6b
AC Wiring to FP2012-U1

2.6.1.1 Wiring from FP2011-U1 and

FP2012-U1 to PAD-4-MB
FP2011-U1
DISCONNECT POWER
BLOCK PROTECTION
WARNING
DESACTIVEZ L'UNITE
AVANT ENTRETIEN
LNG
REMOVING
+24V (Red)
TERMINAL
PRIOR TO
SEE FIGURE 2-6a GND (Blk)
PSSI (Blk)
FOR WIRING Brownout
(Blue)
Brownout PSSI GND +24V
J3 TB10
J3 300W 170W
PAD-4-MB
300W 170W
NOTE:
1. Power Supply includes a cable
connection that is detachable.
2. Select 170W operation using
jumper on J3. Figure 2-7a
Wiring from FP2011-U1 Power Supply to PAD-4-MB
H
SEE FIGURE 2-6b FP2012-U1

N
FOR WIRING
G
J3
300W 170W
1234
NOTE: Brownout PSSI GND +24V
J3 TB10
1. Power Supply includes a cable
300W 170W
connection that is not PAD-4-MB
detachable.
2. Select 300W operation using
jumper on J3.
Figure 2-7b
Wiring from FP2012-U1 Power Supply to PAD-4-MB
10

2.6.2 Battery Connection

The PAD-4 requires a 24V sealed lead-acid
battery set. The battery capacity can be from 7 to
18 A.H. For battery sets larger than 7 A.H., an
enclosure with System 3 rails or a separate listed
battery enclosure is required.
B+
The following steps and diagram explain how to B-
connect the Siemens BT-33, 7 A.H. battery set to

the PAD-4-MB using the battery wires, P/N 600-
150217, included with the PAD-4-MB.
Make sure to connect AC power first
and then the battery.
1. Strip the insulation ¼” from the end of the red
and black battery wires.
2. Connect the red battery wire to B+, the
positive terminal of J6.
3. Connect the black battery wire to B-, the CAUTION:
negative terminal of J6. MAKE SURE THAT THE QUICK
DISCONNECT END OF THE
4. Attach the quick disconnect end of the red BATTERY CABLE IS ATTACHED
TO THE CORRECT TERMINAL:
battery wire to the positive battery terminal. RED TO POSITIVE (+)
5. Attach the quick disconnect end of the black BLACK TO NEGATIVE (-)
battery wire to the negative battery terminal.
6. Connect jumper wire from the positive (+) Figure 2-8
side of battery #1 to the negative side of Battery Installation
battery #2.
When disconnecting the battery,
remove the quick disconnects from SERVICE DS8
the jumper wire, the black battery wire PORT 2 PAD-4-MB PWR JP7
P2
1 J3 J1
and the red battery wire in that order.
The battery set is protected by a 10/20 amp,
32VDC replaceable AUTO-FUSE.
J6
J10
TABLE 2-2
B+
PAD-4 BATTERY CONNECTIONS

B-
Terminal J6 Description Ratings 1
B+ Battery
24VDC nominal J16 24V BATTERY SET
B- Circuit Ground SEE (7 TO 18.0 AH)
TABLE 2-3
FOR FUSE
SUPERVISED
RATINGS NON-POWER LIMITED
TABLE 2-3
PAD-4 J16 FUSE RATINGS INPUT CURRENT (MAX.) 15.3A
CHARGE VOLTAGE (MAX.): 29 VDC
Pow er Supply F u se CHARGE CURRENT (MAX.): 1.5A
FP2011-U1 (170W) 10A 12 AWG
FP2012-U1 (300W) 20A
Figure 2-9
Battery Wiring to PAD-4-MB
11

2.6.2.1 Multiple Module Battery Connection To each PAD-4

battery connection
terminal
For applications where multiple PAD-4 boards are
mounted in an enclosure with System 3 rails, it
may be possible to connect two boards to a
single battery set. When using a single battery set
for two boards, the following rules must be To Battery Terminal
followed:
a) Both PAD-4 boards must be located within

the same enclosure and mounted adjacent to Figure 2-10
each other. Battery Connection Splitter
b) The combined battery A.H. rating required for
both boards does not exceed 18 A.H.
c) Each PAD-4 and associated FP2011-U1
must be mounted on S3AP adapters. Refer to
the S3AP manual, P/N 315-050257.
To PAD-4
d) One of the PAD-4 boards must have its
charging circuit disabled.
e) Two (2) battery connection splitters (part
number 230-299203) are used on the battery To PAD-4
set for proper connection.
The following steps and diagrams explain how to

connect two PAD-4 boards to a single battery set.
1. Install a battery connection splitter (see

Figure 2-10) to the positive and negative
terminals on the battery set. If the battery set
contains two 12-volt batteries to be wired in
series, install one splitter on the positive
terminal of battery #1 and the other to the Figure 2-11
negative terminal of the battery #2.
Dual Module Battery Connection
2. Connect the black wires from both PAD-4
boards to the splitter on the negative terminal
of battery #2.
3. If the battery set contains two 12-volt
batteries, connect the jumper wire from the
remaining single positive terminal of battery
#2 to the negative terminal on battery #1.
4. Connect the red wires from both PAD-4
boards to the splitter on the positive terminal
of battery #1. See Figure 2-11.
5. Disable the battery charger on one of the
units. See Section 5.2 for directions.
12

2.6.3 Class B (Style Y) Input/Output NAC Wiring

Figure 2-12 shows how to wire for Class B (Style Y) input and output supervision. Use in/out wiring
methods for proper supervision.
Class B (Style Y) Output Notification Circuits
Figure 2-12 shows four, 1.5 amp devices wired as Class B (Style Y) circuits.
Place a 24K ohm EOL resistor (provided) at the end of each loop to enable notification output supervi-
sion when using all outputs as Class B (Style Y) notification circuits. The 24K EOLs must be wired to the
terminals whether or not you are using all output terminals.
Class B (Style Y) Supervised Input Circuits
Figure 2-12 shows Class B (Style Y) supervised wiring from a fire alarm control unit to the PAD-4 board.
Use the control unit’s EOL resistor installed as shown to enable notification input supervision. Note:
MIN: 22 AWG, MAX: 12 AWG.
TB11 TB12 TB13 TB14

_ _ TB15
_ _ TB16
_
1+ 1- 1 2+ 2- 2 COM NC NC COM NO + + + + +
NAC1B NAC2B (NAC1A) NAC3B NAC4B (NAC2A) AUX PWR SUPPLY
1 1 1 1 1 1
INPUT 1 INPUT 2
FOR TB11 INPUT 1(-) AND
DO NOT USE
DO NOT USE
DO NOT USE
TB12 INPUT 2(-) USE TWO

CONDUCTORS UNDER + - + - + - + -
ONE SCREW TERMINAL.
THIS SCREW TERMINAL EOL
REQUIRES 16-22 AWG (SEE CONTROL UNIT + - + - + - + -
FOR MULTIPLE INSTALLATION INSTRUCTIONS)
CONDUCTOR USAGE.
24K, 1/2W 24K, 1/2W NOTIFICATION APPLIANCE CIRCUIT

- PART NO. PART NO. CLASS B (STYLE Y)
+ 140-820405 140-820405 SUPERVISED, POWER LIMITED
24VDC/VFW SEE SIEMENS P/N 315-096363 OR
7mA MAX. NAC RATINGS: FARADAY P/N 315-096363FA FOR
CLASS B (STYLE Y)
SUPERVISED BY ALARM VOLTAGE: 24VDC COMPATIBLE DEVICES
NOTIFICATION OUTPUT
FIRE ALARM MAX. ALARM CURRENT: 3A
FROM FIRE PANEL
CONTROL UNIT, MAX. RIPPLE: 0.1 VAC POLARITY SHOWN IN
POWER LIMITED MAX. STANDBY CURRENT: 1.0mA ACTIVATED CONDITION.
POLARITY SHOWN IN
ACTIVATED CONDITION.
Figure 2-12
Class B (Style Y) Supervised Input/Output Connections
13

2.6.4 Class A (Style Z) Input/Output NAC Wiring

Figure 2-13 shows how to wire for Class A (Style Z) input and output supervision. Use in/out wiring
methods for proper supervision. Note: MIN: 22 AWG, MAX: 12 AWG.
Class A (Style Z) Output Notification Circuits
The configuration shown in Figure 2-13 shows two, 3-amp devices wired as Class A (Style Z) circuits.
When you are using the outputs as Class A (Style Z) circuits, loop the wiring back to the corresponding
circuit pair. For Class A (Style Z) wiring, no external EOL is necessary since it is built into the board.
PAD-4-CLSA Module
The PAD-4-CLSA module provides connectivity to two circuits wired as Class A (Style Z). Refer to the
PAD-4-CLSA Installation Instructions, P/N 315-050254, for more information.
Class A (Style Z) Supervised Input Circuits
The configuration shown in Figure 2-13 shows Class A (Style Z) supervised wiring from a fire alarm
control unit to the PAD-4 board. Pay close attention to the polarities when wiring the unit and follow
these requirements:
When wiring to terminal 1-, you must use two separate wires. Do not loop a single wire or twist two
conductor wires together.
Do not use notification appliances on Class A (Style Z) circuits connected for input. The PAD-4 will
detect voltage across the input circuits, but is not designed to pass the added current load from notifica-
tion appliances.
+ _ + _ + _ + _
TB1 NAC3A NAC4A TB2
1 1
PAD-4-CLSA
TB11 TB12 TB13 TB14
_ _ TB15
_ _ TB16
_
1+ 1- 1 2+ 2- 2 COM NC NC COM NO + + + + +
NAC1B NAC2B (NAC1A) NAC3B NAC4B (NAC2A) AUX PWR SUPPLY
1 1 1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
DO NOT USE
DO NOT USE
NOTIFICATION APPLIANCE CIRCUIT

24VDC/VFW + - CLASS A (STYLE Z)
7mA MAX. SUPERVISED, POWER LIMITED
SUPERVISED BY SEE SIEMENS P/N 315-096363 OR
FIRE ALARM + - FARADAY P/N 315-096363FA FOR
CONTROL UNIT, COMPATIBLE DEVICES
POWER LIMITED
POLARITY SHOWN IN
ACTIVATED CONDITION.
+
IN
- NAC RATINGS:
NOTE: THIS CLASS USES ALARM VOLTAGE: 24VDC
- 2 NAC CIRCUITS MAX. ALARM CURRENT: 3A
OUT
+ MAX. RIPPLE: 0.1 VAC
MAX. STANDBY CURRENT: 1.0mA
Figure 2-13
Class A (Style Z) Supervised Input/Output Connections
14

2.6.5 Auxiliary Power Supply Output

The auxiliary power supply output provides a 24VDC power source. It is supervised for ground fault and
short and is power limited. This output is limited to 3.0 amps maximum.
TB15
_ _ TB16
_
+ + +
NAC3B NAC4B (NAC2A) AUX PWR SUPPLY
1 1
DO NOT USE
DO NOT USE
AUXILIARY POWER OUTPUT
3A MAX., 24VDC, SPECIAL APPLICATION
(REFER TO SECTION 1.3
GENERAL SPECIFICATIONS)
SUPERVISED, POWER LIMITED
Figure 2-14
Auxiliary Power Supply Output Connection
2.6.6 Common Trouble Relay

The PAD-4 board has a Form C trouble relay. The relay will de-energize under a trouble condition.
A typical application of the trouble relay is to connect the PAD-4 normally closed (N.C.) contacts in
series with an EOL of a spare IDC or NAC or monitor input from a fire alarm control unit. This will cause
a trouble on the fire alarm control unit when the PAD-4 opens its trouble contacts.
For AC Fail reporting, refer to Section 5.1.4 for configuration and response times.
Note: The N.C. contact is the relay contact that is closed when the PAD-4 has power and there are no
trouble conditions.
TB11 TB12 TB13 TB14

_ _
1+ 1- 1 2+ 2- 2 COM NC NC COM NO + +
NAC1B NAC2B (NAC1A)
1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
TROUBLE RELAY CONTACT

(SHOWN IN NORMAL
STANDBY CONDITION)
2A @ 30VDC,
RESISTIVE FOR POWER
LIMITED SOURCE CONTROL UNIT
UNSUPERVISED IDC CONNECTION
+
INITIATING CIRCUIT
-
IDC EOL
(SEE CONTROL UNIT
INSTALLATION INSTRUCTIONS)
Figure 2-15
Trouble Relay Connection Example
15

2.6.7 AC Fail Relay

AC Fail Relay provides a normally closed (N.C.) local signal (audible and visual) of AC fail at the
Form A contact which will be de-energized protected premises. (Refer to Figure 2-16.)
without delay if AC is low or lost. It provides a
2.6.8 Ground Fault Relay

GND FLT Relay, located on the PAD-4-CLSA ULC operation for the contact to activate. Refer to
module, provides a Normally Open (N.O.) Form the PAD-4-CLSA installation instructions, P/N
A contact which will be energized if ground fault 315-050254 for more information.
is detected. PAD-4-MB must be configured for
PAD-4
TB11 TB12 TB13
1+ 1- 1 2+ 2- 2 COM NC NC COM NO
1 1 1
INPUT 1 INPUT 2
* EOL
DO NOT USE
*
3.6K, 1/4W
EOL 24K
P/N 140-830185 EOL
1/2W, 5%
OR
P/N 140-034677
470 OHMS, 1/4W
P/N 140-820164,
AS APPLICABLE
LOOP CKT
TB3 1+ FS-DLC LOOP
1-
2+
2- * EOL *
EOL
3.6K, 1/4W
P/N 140-830185
OR
470 OHMS, 1/4W 5 4 3 2 1
P/N 140-820164,
5 4 3 2 1
AS APPLICABLE
FS-250 HTRI-S HTRI-S
#1 #2
NOTES:
TB12 1. For U.S. Installations: Program HTRI-S #1 as Status causing,
1+
1- which will not cause the DACT to signal but will cause a local
2+ visual and audible signal. It provides a local signaling of AC fail at
2- the protected premises.
TB13 3+
3- 2. For Canadian Installations: Program HTRI-S #1 as Trouble
4+ causing, which will cause the DACT to signal and will also cause a
4-
local visual and audible signal at the protected premises. Program
the DACT to send a Primary Power Failure signal to the receiving
unit when this HTRI-S is active.
3. Program HTRI-S #2 as Trouble causing, which will cause the

DACT to signal for all common troubles (including AC fail with
reporting delay).
Figure 2-16
AC Fail Relay Connection Example
16

2. 7 Ground Fault Detection Enable/

Disable
For some applications (when used with RSA- at the panel even when none exists. To remedy
Series annunciators, for instance), the PAD-4 is this condition, the PAD-4 can have its ground
used to provide power to an auxiliary device fault detection circuit disabled. Once disabled, the
which gets a control signal from a fire alarm fire alarm panel’s ground fault detection circuitry
panel. The ground fault reference for the PAD-4 will detect any ground fault in the system. See
may be different than the reference used by the Section 5-2 for correct positioning of this jumper,
fire alarm panel, resulting in a ground fault trouble and see Figure 2-5 for the location of this jumper.
2.8 Input Emulation

The input circuits are normally driven by the fire switch will activate the inputs. If jumpers are
alarm control unit notification appliance circuit and connected to pins 2 and 3, then inputs are nor-
thus the PAD-4 will monitor the polarity of the voltage mally driven by fire alarm control unit notification
coming from the fire alarm control unit to determine appliance circuits. See Section 5-2 for correct
when to operate the output NACs. Alternatively, the positioning of this jumper, and see Figure 2-5 for
input circuits can be driven simply by a switch, such the location of this jumper.
as a relay. If a switch operates the NACs, then it
If the PAD-4 is configured to monitor a switch,
must be wired in a metallic conduit within 20 ft
such as a relay, then the fire alarm control unit will
from the PAD-4 and in the same room.
not be able to receive trouble conditions through
Jumpers J11 and J12 configure which mode is its notification appliance circuit connected to the
active for input 1 and jumpers J13 and J14 PAD-4 input circuits. Use the PAD-4 trouble relay
configure which mode is active for input 2. If when it is necessary to monitor trouble conditions.
jumpers are connected to pins 1 and 2, then a Refer to Figure 3-8.
TB11 TB12
1+ 1- 1 2+ 2- 2 COM NC
1 1
INPUT 1 INPUT 2
Figure 2-17
Connect Switches TB11 and TB12
17

This page is left intentionally blank.
18

3. CONNECTION TO CONTROL UNITS

The drawings in this section show you how to connect the PAD-4 to compatible Siemens and Faraday
control units. See control unit owners manual for more information.
PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1+ 1- 1 2+ 2- 2 COM NC NC COM NO NAC1B NAC2B (NAC1A) NAC3B NAC4B (NAC2A) AUX PWR SUPPLY
1 1 1 1 1 1
INPUT 1 INPUT 2
2.2K, 1/2W EOL

DO NOT USE
DO NOT USE
DO NOT USE
P/N 140-820380
(SEE CONTROL UNIT
+ - + - + - + -
NOTE: + - + - + - + -
3 OHM MAX. TOTAL LINE RESISTANCE
OF NOTIFICATION APPLIANCE CIRCUIT
CONNECTING WIRE. CLASS B
(STYLE Y)
SUPERVISED
NOTIFICATION
24K, 1/2W
SMB-2, MMB-2 PART NO.
CIRCUITS 24K, 1/2W
PART NO.
140-034677 140-034677
TB5-4
+
TB5-3
TB5-2
-
TB5-1
MMB-3
-
TB7-4
+
TB7-3
TB7-2
-
TB7-1
Figure 3-1
Connection to MXL, MXL-IQ
UL and ULC Installations
19

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
DO NOT USE
2.2K, 1/2W EOL
DO NOT USE
P/N 140-820380 + - + - + - + -
(SEE CONTROL UNIT
INSTALLATION INSTRUCTIONS) - -
+ + + - + -
CLASS B
SUPERVISED
NOTE: NOTIFICATION
THE CSM-4 ALLOWS UP TO CIRCUITS
3 OHM MAX. TOTAL LINE 24K, 1/2W 24K, 1/2W
RESISTANCE FOR NOTIFICATION PART NO. PART NO.
APPLIANCE CIRCUITS. 140-034677 140-034677
TB1, TB2, TB3 or TB4

1 2 3 4 5 6
- + MOM-4
Figure 3-2
Connection to CSM-4
PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
10K, 1/2W EOL

DO NOT USE
DO NOT USE
DO NOT USE
P/N 140-820396
(SEE CONTROL UNIT
+ - + - + - + -
NOTE: + - + - + - + -
SUPERVISED
SXL-EX/LW-401 NOTIFICATION
CIRCUITS
24K, 1/2W 24K, 1/2W
PART NO. PART NO.
TB-7 140-034677 140-034677
-
BL1-1
BL1-2 +
BL2-1
BL2-2
Figure 3-3
Connection to SXL-EX and LW-401
UL Installations Only
20

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
5.6K, 1/2W EOL
DO NOT USE
DO NOT USE
DO NOT USE
P/N 140-112166
(SEE CONTROL UNIT
+ - + - + - + -
NOTE:
+ - + - + - + -
SUPERVISED
NOTIFICATION
CIRCUITS
24K, 1/2W 24K, 1/2W
PART NO. PART NO.
140-034677 140-034677
+ -
31 32 33 34 35 36 CP-35
Figure 3-4
Connection to CP-35
21

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
DO NOT USE
5.6K, 1/2W EOL
DO NOT USE
P/N 140-112166 + - + - + - + -
(SEE CONTROL UNIT
+ + + - + -
CLASS B
SUPERVISED
NOTIFICATION
CIRCUITS
24K, 1/2W 24K, 1/2W
PART NO. PART NO.
140-034677 140-034677
AE-30U
- +
1 2 3 4 5 6 NOTE:
CP-35 OF NOTIFICATION APPLIANCE CIRCUIT
CONNECTING WIRE.
CP-35 36
37 ACTUATION
INPUT
38
INPUT
POWER
Figure 3-5
Connection to AE-30U
22

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
DO NOT USE
DO NOT USE
+ - + -
+ - + -
CLASS A
SUPERVISED
NOTIFICATION
CIRCUITS
AA-30U
5.6K, 1/2W EOL

P/N 140-112166
7 8
- +
1 2 3 4 5 6 NOTE:
CP-35 OF NOTIFICATION APPLIANCE CIRCUIT
CONNECTING WIRE.
CP-35 36
POLARITY SHOWN IN SUPERVISORY CONDITION
37 ACTUATION
INPUT
38
INPUT
POWER
Figure 3-6
Connection to AA-30U
23

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
DO NOT USE
15K, ½W EOL
DO NOT USE
P/N 140-820400 + - + - + - + -
(SEE CONTROL UNIT
+ + + - + -
CLASS B
(STYLE Y)
SUPERVISED
NOTIFICATION
24K, 1/2W CIRCUITS 24K, 1/2W
PART NO. PART NO.
140-034677 140-034677
-
ANALOG SUPERVISED STROBE ACTIVATION - SPECIAL APPLICATION
LOOP + SUPV: 9VDC, .5mA
CONNECTION ACTIVATED: 16-32V UNFILTERED FULL WAVE RECTIFIED, 1.5A MAX
POLARITY SHOWN IN SUPV. CONDITION
SUPERVISED
POWER
LIMITED
TB1 1 2 3 4 5 6 POLARITY SHOWN IN ACTIVATED STATE

+ - - +
ICP-B6
JP2
PROGRAM
PLUG
JP1
DC INPUT RATED
24 - 27.3 VDC FWR
SUPV: 12mA
+ - + -
ACTIVATED: 1.5A MAX TB2 6 5 4 3 2 1
EARTH
SHIELD
REFER TO
ICP-B6 INSTALLATION INSTRUCTIONS
P/N 315-095306
+
-
ICP-B6 MODULE IS USED FOR
NAC SUPERVISION AND ACTIVATION
Figure 3-7
Connection to ICP-B6 (MXL/MXLV)
24

PNL SW
PAD-4
J11 J14
3 2 1 3 2 1
3 2 1
TB11 TB12 J12 TB13 TB14
+ _
TB15
_ _ TB16
_
+ _
PNL SW PNL SW
PNL SW + + +
1+ 1- 1 2+ 2- 2 COM NC 3 2 1 NC COM NO NAC1B NAC2B (NAC1A) NAC3B NAC4B (NAC2A) AUX PWR SUPPLY
1 1 1 1 1 1
PNL SW
J13 J4 J7
INPUT 1 INPUT 2
470 OHM, 1/4W

P/N 140-820164
DO NOT USE
DO NOT USE
DO NOT USE
+ - + - + - + -
+ - + - + - + -
CLASS B
(STYLE Y)
SUPERVISED
NOTIFICATION
CIRCUITS
24K, 1/2W 24K, 1/2W
PART NO. PART NO.
140-034677 140-034677
DLC DLC
LOOP LOOP
TO INPUT #2
1
2
HTRI-R
3 8
4 7
DO
TO EARTH
GROUND
5 6 NOT
USE
TO INPUT #1
1
2 NOTE:
HTRI-R SET HTRI-R FOR NORMALLY
3 8 OPEN TROUBLE CAUSING

470 OHM, 1/4W EOL OPERATION.
P/N 140-820164
4 7 MODULE IS POLARITY
DO INSENSITIVE. LINE 1 AND
TO EARTH LINE 2 CAN BE EITHER
GROUND
5 6 NOT
LINE OF THE LOOP.
USE
NOTES:
1. All wiring must be in accordance
with Article 760 of NEC or local
Figure 3-8
building codes. Connection to TRI-R/HTRI-R/8704
2. When using this application, UL and ULC Installations
jumpers J11 and J12 (Input 1) and
jumpers J13 and J14 (Input 2)
must be set for the switch setting
with the jumper on plugs 1-2.
3. HTRI must be installed in the same
room as the PAD-4.
25

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
DO NOT USE
24K, 1W EOL
DO NOT USE
P/N 140-033771 + - + - + - + -
(SEE CONTROL UNIT
+ + + - + -
CLASS B
(STYLE Y)
SUPERVISED
NOTIFICATION
PART NO. PART NO.
140-034677 140-034677
FROM LINE 1
DLC/FS-DLC LINE 2
DEVICE LOOP
POLARITY SHOWN IN ACTIVATED STATE

SUPERVISED STROBE ACTIVATION “SPECIAL APPLICATION”
SUPV: 1mA
1 2
-3 4 5
+6
ACTIVATED: 1.5A MAX
18.8-28.2V FILTERED FULL WAVE RECTIFIED
TB1 ON BACK SIDE
PROGRAMMING
POINTS
HCP
DC INPUT RATED
18.8-28.2 VDC TB2 ON BACK SIDE
SUPV: 30mA
ACTIVATED: 1.5A MAX 6 5 4 3 2 1
EARTH
SHIELD
REFER TO
HCP INSTALLATION INSTRUCTIONS
P/N 315-034860
HCP MODULE IS USED FOR

NAC SUPERVISION AND ACTIVATION
Figure 3-9
Connection to HCP (FireFinder XLS,
Desigo Fire Safety Modular,
Cerberus PRO Modular, or FS250)
Use FS250C for ULC Installations
26

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
EOL 24K
DO NOT USE
DO NOT USE
DO NOT USE
1/2W, 5%
P/N 140-034677
(SEE CONTROL UNIT
FS-250/MPC-6000/MPC-7000
TB12 1+
1-
2+
2-
TB13 3+ POLARITY SHOWN IN ACTIVATED STATE
3-
4+
4-
Figure 3-10
Connection to FS-250 and MPC-6000/7000
27

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
DO NOT USE
24K, 1W EOL
DO NOT USE
P/N 140-033771 + - + - + - + -
(SEE CONTROL UNIT
+ + + - + -
CLASS B
ZONE 2 (STYLE Y)
SUPERVISED
CLASS B NOTIFICATION
24K, 1W, 5% 24K, 1/2W 24K, 1/2W
(STYLE Y) CIRCUITS
PART NO. PART NO.
140-034677 140-034677
POLARIZED
NOTIFICATION
APPLIANCES
+ NC NC - + NC NC -
1 2 3 4 5 6 7 8 CLASS B
ZONE 4 (STYLE Y)
9 10 11 12 13 14 15 16
NC NC 24K,
1W,
5%
ONE SLOT OF CC-5
17 18 19 20 21 22 23 24
+ - + - + - + -
ZONE 1 ZONE 2 ZONE 3 ZONE 4

INPUT INPUT INPUT INPUT
Figure 3-11
Connection to ZIC-4A (FireFinder-XLS,
or Cerberus PRO Modular)
28

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
DO NOT USE
DO NOT USE
24K, 1W EOL
DO NOT USE
P/N 140-033771 + - + - + - + -
(SEE CONTROL UNIT
+ + + - + -
CLASS B
(STYLE Y)
SUPERVISED
NOTIFICATION
PART NO. PART NO.
CLASS B 140-034677 140-034677
(STYLE Y)
ZONE 2 ZONE 3 ZONE 4
24K, 24K, 24K,

1W, 1W, 1W,
5% 5% 5%
+ - + - + - + -
1 2 3 4 5 6 7 8
+ - + - + - + -
9 10 11 12 13 14 15 16 ZONE 8
ZONE 5
24K, 24K,
1W, 1W,
5% 5%
ZONE 6 ZONE 7
24K, 24K,
1W, 1W,
5% 5%
ONE SLOT OF CC-5

17 18 19 20 21 22 23 24
+ - + - + - + -
ZONE 1&2 ZONE 3&4 ZONE 5&6 ZONE 7&8

INPUT INPUT INPUT INPUT
Figure 3-12
Connection to ZIC-8B (FireFinder-XLS,
or Cerberus PRO Modular)
29

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
2.4K, 1/2W EOL
DO NOT USE
DO NOT USE
DO NOT USE
(SEE CONTROL UNIT
+ - + - + - + -
NOTE: + - + - + - + -
(STYLE Y)
SUPERVISED
NOTIFICATION
24K, 1/2W
FC2025 PART NO.
CIRCUITS 24K, 1/2W
PART NO.
140-034677 140-034677
X601
NAC1-1 + 4
NAC1-1
- 3
NAC1-2 + 2
NAC1-2
- 1
FC2050
X601
NAC1-1 + 4
NAC1-1
- 3
NAC1-2 + 2
NAC1-2
- 1
Figure 3-13
Connection to FC2025, FC2050
30

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
2.4K, 1/2W EOL
DO NOT USE
DO NOT USE
DO NOT USE
(SEE CONTROL UNIT
+ - + - + - + -
NOTE: + - + - + - + -
(STYLE Y)
SUPERVISED
NOTIFICATION
24K, 1/2W
FC922 PART NO.
CIRCUITS 24K, 1/2W
PART NO.
140-034677 140-034677
X601
NAC1-1 + 4
NAC1-1
- 3
NAC1-2 + 2
NAC1-2
- 1
FC924
X601
NAC1-1 + 4
NAC1-1
- 3
NAC1-2 + 2
NAC1-2
- 1
Figure 3-14
31

PAD-4
TB11 TB12 TB13 TB14

+ _ + _ +
TB15
_
+
_
+
TB16
_
1 1 1 1 1 1
INPUT 1 INPUT 2
24K, 1/2W EOL
DO NOT USE
DO NOT USE
DO NOT USE
(SEE CONTROL UNIT
+ - + - + - + -
NOTE:
3 OHM MAX. TOTAL LINE RESISTANCE + - + - + - + -
CONNECTING WIRE.
CLASS B
SUPERVISED
FC2005 / FC901 NOTIFICATION
CIRCUITS
24K, 1/2W 24K, 1/2W
PART NO. PART NO.
140-034677 140-034677
NAC
N_AN
N_AP
N_BN
N_BP
Figure 3-15
32

4. SAMPLE APPLICATIONS
The drawings in this section show various configurations, including daisy-chaining.
4.1 Notification Appliance Power Applications

24 VDC
Notification Appliance Circuit S1
ON
Fire Control 3 2 1
Unit
PAD-4
Input 1
O O O O
u u u u
t t t t
p p p p
u u u u
t t t t
1 2 3 4
Figure 4-1
Input 1 Activates All Four Outputs and Input 2 Is Not Used
24 VDC
ON
Fire Control 3 2 1
Unit
Sync Horns/Strobes
PAD-4
Input 1
Input 2
O O O O
u u u u
t t t t
p p p p
u u u u
t t t t
1 2 3 4
Figure 4-2
Input 1 Activates All Four Outputs and Input 2 Is Used to Silence Sync Horns
33

24 VDC
ON
Fire Control 3 2 1
Unit
Notification Appliance Circuit
PAD-4
Input 1
Input 2
O O O O
u u u u
t t t t
p p p p
u u u u
t t t t
1 2 3 4
Figure 4-3
Input 1 Activates Outputs 1 & 2 and Input 2 Activates Outputs 3 & 4
24 VDC 24 VDC
S1 S1
ON ON
3 2 1 3 2 1
PAD-4 PAD-4

Input 1 Input 1
Fire Control O O O O O O O O
Notification Appliance Circuit u u u u u u u u
Unit t t t t t t t t
p p p p p p p p
u u u u u u u u
t t t t t t t t
1 2 3 4 1 2 3 4
NOTE: Only the appliances connected to the same PAD-4 will operate synchronously when the output circuits
of the PAD-4 are set to synchronization mode. The appliances connected to a different PAD-4 will not
operate synchronously.
Figure 4-4
One Control Panel Activating Two PAD-4s
34

24 VDC
S1
ON
3 2 1
Fire Control
Unit PAD-4
Input 1
O O O
u u u
t t t
p p p
u u u
t t t
1 2 3
Output 4
24 VDC 24 VDC
S1 S1
ON ON
3 2 1 3 2 1
PAD-4 PAD-4
Input 1
Output 4 Input 1
O O O O O O O
u u u u u u u
t t t t t t t
p p p p p p p
u u u u u u u
t t t t t t t
1 2 3 1 2 3 4
Figure 4-5
One Control Panel Activating Three PAD-4s
35

24 VDC
S1
Notification Appliance Circuit #1
ON
3 2 1
Fire Control Notification Appliance Circuit #2

Unit PAD-4
Input 1
Input 2
Output 1
Output 4
24 VDC 24 VDC
S1 S1
ON ON
3 2 1 3 2 1
PAD-4 PAD-4
Input 1 Input 1
O O O O O O O O O O
u u u u u u u u u u
t t t t t t t t t t
p p p p p p p p p p
u u u u u u u u u u
t t t t t t t t t t
1 2 3 4 2 3 1 2 3 4
Outputs Active When Outputs Active When

Fire Panel’s Notification Fire Panel’s Notification
Circuit #1 Activates Circuit #2 Activates
Figure 4-6
Each Control Signal Circuit Activates Five Output Circuits
36

Fire Control Unit
CAUTION: FOR SYSTEM SUPERVISION,

DO NOT USE LOOPED WIRE UNDER TERMINALS.
BREAK WIRE RUN TO PROVIDE SUPERVISION OF CONNECTION.
Notification Fire Alarm
Circuit Zone
+ - TROUBLE CONTACTS
MONITORED BY
FACP ZONE
PAD-4 PAD-4 PAD-4
1+ 1- NC COM 1+ 1- NC COM 1+ 1- NC COM
EOL OF
P/N 140-034677 TROUBLE
24K EOL OF CONTACT
NAC CIRCUIT FROM FACP
Figure 4-7
Multiple PAD-4s Activated by a Single Notification Circuit
37

4.2 Door Holder Applications

In a typical door holder application, the door holder power must be released to close all fire doors under
the following conditions:
• Any active alarm condition.
• AC power is no longer present (to conserve backup battery power).
To close the fire doors in these situations, wire a normally closed relay contact from the fire alarm
control unit in series with the auxiliary power to the door holders.
The circuit shown in Figure 4-8 will provide up to 3 amps of door holder current. The power in this
example is released when AC power is off for 30 seconds or more, or when the relay from the fire alarm
control unit opens. See Section 1.1 for a description of the auxiliary power options, and Section 5.1.2 for
information on choosing the options.
NOTE: Compatible Door Holder: Rixson FM998. Approved for UL/ULC Installations.
RSG DH24120. Approved for UL/ULC/FM Installations.
PAD-4
Fire Alarm
Control Unit
AUX PS
TB16 + -
Door Holders
Alarm Relay
Figure 4-8
Door Holder Wiring Example
38

PAD-4 Operation, Installation, and Maintenance Manual
NOTICE TO USERS, INSTALLERS, AUTHORITIES HAVING JURISDICTION, AND OTHER INVOLVED PARTIES
This product incorporates field-programmable software. In order for the product to comply with the requirements in the Standard
for Control Units and Accessories for Fire Alarm Systems, UL 864, certain programming features or options must be limited to
specific values or not used at all as indicated below.
Feature Permitted in UL 864? (Y/N) Possible Settings Settings permitted in UL 864
(Refer to section 5.1.4)
1) Will never be reported N
2) Not delayed N
*Used for local systems
AC Fail Reporting Y
3) Delayed 60 minutes Y
4) Delayed 180 minutes Y
5. PROGRAMMING
The PAD-4 functions are programmed with a 10- Refer to Figure 2-5 for the location of the DIP
position DIP switch and ten 3-position jumpers. switch on the circuit board assembly.
The following section describes each setting.
All DIP switches are factory set for off; verify proper
settings for proper system operation. Slide the
5.1 DIP SWITCH SETTINGS switches up for OFF and down for ON.
The 10-position DIP switch allows you to select
the following: Note: The unit checks DIP switch settings
only when reset. If you change these switch
• How long will the unit wait before indicating a
settings, you must push S2 reset switch to
loss of AC in UL installations. Loss of AC
recognize the new DIP switch settings.
settings are disabled in Canadian installations
and AC Fail will be reported immediately.
• Which input (Input 1 or Input 2) will control
the NAC outputs ON
• Which outputs to wire as Style Z (Class A) 10 9 8 7 6 5 4 3 2 1

and Style Y (Class B)
• Auxiliary power output operation on AC
power fault
• Which outputs to operate as steady outputs,
ANSI temporal or Carbon Monoxide (CO)
alarms.
39

5.1.1 Selecting the Input/Output Configuration

Figure 5-1 shows the position of each switch on the DIP switch for various input and output configura-
tions. Refer also to Figure 5-2 for the terminal block designated on the PAD-4 or PAD-4-CLSA board.
The position of switch 4 through 10 does not affect the relationship of inputs to outputs.
Note: Changing settings for DIP switches 1-3 may affect the settings for jumpers J4-J8.
NO PAD-4-CLSA BOARD WITH PAD-4-CLSA BOARD WITH PAD-4-CLSA BOARD
UL INSTALLATION ONLY UL INSTALLATION ONLY ULC INSTALLATION ONLY
OFF Switch 1 OFF & Switch 2 OFF & Switch 3 OFF: Not Applicable Switch 1 OFF & Switch 2 OFF & Switch 3 OFF:
Input 1 controls outputs 1B - 4B (Class B). Input 1 controls outputs 1B - 4B (Class B).
ON
10 9 8 7 6 5 4 3 2 1 Input 2 not used. Input 2 not used.
Switch 1 ON & Switch 2 OFF & Switch 3 OFF: Not Applicable Switch 1 ON & Switch 2 OFF & Switch 3 OFF:
Input 1 controls outputs 1B - 4B (Class B). Input 1 controls outputs 1B - 4B (Class B).
10 9 8 7 6 5 4 3 2 1 Input 2 used to control silencing of Sync horns. Input 2 used to control silencing of Sync horns.
Switch 1 OFF & Switch 2 ON & Switch 3 OFF: Not Applicable Switch 1 OFF & Switch 2 ON & Switch 3 OFF:
Input 1 controls outputs 1B, 2B and 3B (Class B). Input 1 controls outputs 1B, 2B and 3B (Class B).
10 9 8 7 6 5 4 3 2 1 Input 2 controls output 4B (Class B). Input 2 controls output 4B (Class B).
Switch 1 ON & Switch 2 ON & Switch 3 OFF: Not Applicable Switch 1 ON & Switch 2 ON & Switch 3 OFF:
Input 1 controls outputs 1B and 2B (Class B). Input 1 controls outputs 1B and 2B (Class B).
10 9 8 7 6 5 4 3 2 1 Input 2 controls outputs 3B and 4B (Class B). Input 2 controls outputs 3B and 4B (Class B).
Switch 1 OFF & Switch 2 OFF & Switch 3 ON: Switch 1 OFF & Switch 2 OFF & Switch 3 ON: Switch 1 OFF & Switch 2 OFF & Switch 3 ON:
Input 1 controls outputs 1A and 2A as Class A. Input 1 controls outputs 1A - 4A as Class A. Input 1 controls outputs 1A - 4A as Class A.
10 9 8 7 6 5 4 3 2 1 Input 2 not used. Input 2 not used. Input 2 not used.
Switch 1 ON & Switch 2 OFF & Switch 3 ON: Switch 1 ON & Switch 2 OFF & Switch 3 ON: Switch 1 ON & Switch 2 OFF & Switch 3 ON:
Input 1 controls outputs 1A and 2A as Class A. Input 1 controls outputs 1A - 4A as Class A. Input 1 controls outputs 1A - 4A as Class A.
10 9 8 7 6 5 4 3 2 1 Input 2 used to control silencing of Sync horns. Input 2 used to control silencing of Sync horns. Input 2 used to control silencing of Sync horns.
Switch 1 OFF & Switch 2 ON & Switch 3 ON: Switch 1 OFF & Switch 2 ON & Switch 3 ON: Switch 1 OFF & Switch 2 ON & Switch 3 ON:
Input 1 controls outputs 1A as Class A. Input 1 controls outputs 1A and 2A as Class A. Input 1 controls outputs 1A and 2A as Class A.
10 9 8 7 6 5 4 3 2 1 Input 2 controls outputs 2A as Class A. Input 2 controls outputs 3A and 4A as Class A. Input 2 controls outputs 3A and 4A as Class A.
Not Applicable Switch 1 ON & Switch 2 ON & Switch 3 ON: Switch 1 ON & Switch 2 ON & Switch 3 ON:
Input 1 controls outputs 1A, 2A and 3A (Class A). Input 1 controls outputs 1A, 2A and 3A (Class A).
10 9 8 7 6 5 4 3 2 1 Input 2 controls output 4A (Class A). Input 2 controls output 4A (Class A).
Figure 5-1
Setting DIP Switches 1-3
PROGRAMMING S1 DIPSWITCHES 1-3
PAD-4 PCB PAD-4-CLSA
Terminal Designation
NAC1B NAC2B NAC3B NAC4B NAC3A NAC4A
on P C B
Class A Configuration
1A 2A 3A 4A
Designation
Class B Configuration
1B 2B 3B 4B N/A N/A
Designation
PAD-CLSA
P1
PAD-4 PCB NO
2
TB3
COM
1
GND FLT
TB1 TB2
1 1 1
TB14 TB15 TB16
1 1
_ _ _ _ J8 _
+ + + + +
NAC1B NAC2B [NAC1A] NAC3B NAC4B [NAC2A] AUX PWR SUPPLY + _ + _ + _ + _
NAC3A NAC4A
Figure 5-2
Designation of NAC Outputs on PAD-4 PCB and PAD-4-CLSA
40

5.1.2 Setting the Auxiliary Output

Switch 4 on the DIP switch determines how the Slave Operation
auxiliary power operates. The Slave operation output follows the input and
can be used when the fire alarm control unit NAC
The PAD-4 checks switch 4 only when powering
is steady, coded, march time, or temporal and
up. If you change this switch, you must push
the desired output is the same.
switch S2 momentarily to reset the unit to recog-
nize the new switch setting. Master Temporal Operation
Master Sync Strobe/Horn Operation
OFF
Switch 4 OFF:
ON
Auxiliary Power Output always on. Master Carbon Monoxide (CO) Alarm Operation
6 5 4 3 2
Switch 4 ON: Input:

OFF
Auxiliary Power Output will shutdown Steady
ON
6 5 4 3 2 30 seconds after an AC Power Fail
and the unit is running on battery.
Output:
Figure 5-3 Temporal
Operation
Setting DIP Switch 4
Output:
Sync Strobe/
Horn Operation
5.1.3 Setting the Input’s NAC Control
Output:
DIP switch settings 5 to 8 are designed to pro- Carbon Monoxide
(CO) Alarm
duce outputs from a constant on input. The
figures shown below compare the output patterns
of configurations before and after the addition of Figure 5-4
this feature. Master Input/Output Relationship
OFF Switch 5 OFF & Switch 6 OFF:

Slave Operation-Input 1’s outputs will follow the input
ON
10 9 8 7 6 5 4 pattern (steady in, coded, march time, temporal, or Sync).
Switch 5 ON & Switch 6 OFF:

Master Temporal Operation-Input 1’s outputs will be
10 9 8 7 6 5 4 temporal when the input is on steady.
Switch 5 OFF & Switch 6 ON:

Master Sync Strobe/Horn Operation-Input 1’s outputs will
10 9 8 7 6 5 4 provide Sync signals when the input is on steady.
Switch 5 ON & Switch 6 ON:

CO Configuration-Input 1’s outputs will provide CO alarm
10 9 8 7 6 5 4 when the input is on steady.
Switch 7 OFF & Switch 8 OFF:

Slave Operation-Input 2’s outputs will follow the input
10 9 8 7 6 5 4 pattern (steady, coded, march time, temporal, or Sync).
Switch 7 ON & Switch 8 OFF:

Master Temporal Operation-Input 2’s outputs will be
10 9 8 7 6 5 4 temporal when the input is on steady.

Master Sync Strobe/Horn Operation-Input 2’s outputs will
10 9 8 7 6 5 4 provide Sync signals when the input is on steady.

CO Configuration-Input 2’s outputs will provide CO alarm
10 9 8 7 6 5 4 when the input is on steady.
Figure 5-5
Setting DIP Switches 5-8
41

5.1.4 Setting the AC Power Fault Reporting 5.2 JUMPER SETTINGS

Delay on the Global Trouble Relay Factory settings are shown. See Figure 2-5 for
Refer to Figure 5-6 to set the AC Power Fault the location of these jumpers.
Reporting on the Global Trouble Relay to one of
Note: Changing settings for J4-J8 also affect
the following selections:
the settings for S1 DIP switches 1-3. Also the
• AC Power Fail will never be reported. Not NACs must be configured as either all Class A
permitted by UL 864. Refer to page 39. or all Class B.
• AC Power Fail reporting will not be delayed. J2 - UL-ULC Configuration
Not permitted by UL 864. Used for local (Jumper set for ULC operation) J2
systems. Refer to page 39. ULC
• AC Power Fail reporting will be delayed 60 J4 - NAC 1-2 Configuration

minutes. (J5 must be set the same) Class A 3 2 1 Class B
• AC Power Fail reporting will be delayed 180

minutes. J5 - NAC 1-2 Configuration
(J4 must be set the same) Class A 3 2 1 Class B
Note: Switch settings on Switches 9 and 10 do
not affect the operation of the AC Fail Relay.
J7 - NAC 3-4 Configuration
The AC Fail Relay will activate immediately (J8 must be set the same) 3 2 1
Class A Class B
upon low or no AC power under all conditions.
In ULC configuration, DIP Switch 9 and 10 are J8 - NAC 3-4 Configuration
disabled and AC Power Fail Reporting will not (J7 must be set the same) 3 2 1
Class A Class B
be delayed.
Switch 9 OFF & Switch 10 OFF: J9 - Ground Detection
OFF AC Power Fail will never be Configuration Disabled 3 2 1 Enabled
10 9 8 7 6
ON *
reported.
Not permitted by UL 864. Refer to
page 39. J10 - Battery Charger
Configuration
Switch 9 ON & Switch 10 OFF: Enabled 3 2 1 Disabled
AC Power Fail reporting will not
10 9 8 7 6 be delayed. Not permitted by UL
864. Refer to page 39. J11, J12 - Input 1 Emulation Setting
(J12 must be set the same as J11) 3 2 1
Panel Switch
AC Power Fail reporting will be
10 9 8 7 6 delayed 60 minutes. J13, J14 - Input 2 Emulation Setting
(J14 must be set the same as J13) Panel 3 2 1 Switch
AC Power Fail reporting will be
10 9 8 7 6 delayed 180 minutes. Figure 5-7
Jumper Configuration Settings
* Ifmonitored
this option is chosen, the PAD-4 must always be
via the AC Fail relay.
Figure 5-6
Setting DIP Switch 9 and 10
42

6. REFERENCE DATA
This section provides reference for the following
topics:
• Wire selection guides
• Battery size calculations
6.1 WIRE SELECTION GUIDES

6.1.1 Resistance of Solid Copper Wire
AWG Ohms per T housand Feet*
18 8.08
16 5.08
14 3.19
12 2.01
*NEC Chapter 9, Table 8.
43

6.2 BATTERY SIZE CALCULATIONS
Device Quantity Current Per Device (amps) Standby Alarm

Current (A) Current(A)
Multiply This column times this column = current
1) PAD-4 Control Unit 1 or 2A 0.066A per PAD-4
2) PAD-4 Control Unit 1 or 2A 5.0A per PAD-4

Notification Appliances - refer to the device manual for ratings
Model No. Quantity Alarm Current Per Device
Multiply This column times this column
3)
Auxiliary Devices - refer to the device manual for ratings

Model No. Quantity Standby Current Per Device Alarm Current Per Device
Multiply This column times this column times this column
4)
5) Total amperage required (totals for lines 1, 2, 3 and 4) B A A

6) Number of Standby Hours required (4, 24, or 60, per NFPA 72) Hrs.
7) A.H. for Standby. Multiply line 5 times line 6 A.H.
8) Length of Alarm Operation C Hrs.
9) A.H. for Alarm (multiply line 5 times line 8) A.H.
10) Total Standby and Alarm A.H. required (add line 7 and line 9) A.H.
11) Battery De-rating Factor 1.25
12) Battery Amp-Hour Rating required (multiply line 10 times line 11) D A.H.
A. Up to two PAD-4 boards can be connected to a common battery set. When calculating for 2 PAD-4 boards
I. Both boards must be mounted on S3AP adapter plates on System 3 rails in the same enclosure.
II. One of the boards must have the battery charger circuit disabled.
III. The board with the ACTIVE charger is limited to 1.50 amps for the aux. power (TB16, Aux Pwr Supply+, Aux Pwr Supply-).
IV. Both sets of battery connections are to be connected to the same battery set using 2 battery connection splitters, P/N 230-299203.
B. The Alarm Current from sections 3 and 4 above must never exceed 6.0 amps for FP2011-U1 or 9.0 amps for FP2012-U1.
C. Alarm operation length while on battery power varies with application and local codes. Check with the AHJ to determine if 5 minutes (0.0833
hours), 30 minutes (0.5 hours), 1 hour, or 2 hours of alarm operation is required. For Carbon Monoxide (CO) alarms, the alarm operation is
12 hours for local systems, and 1 hour for systems that utilize off-premises monitoring.
D. Battery rating required cannot exceed 18 A.H.
44

7. COMPATIBLE DEVICES
See Siemens P/N 315-096363 or Faraday P/N 315-096363FA, as applicable, for compatible notification
appliances.
8. TROUBLESHOOTING
This section describes the LED states and provides possible trouble conditions of the PAD-4.
8.1 LED INDICATORS

Light-emitting diodes (LEDs) indicate fault and normal conditions. The seven LEDs indicate a fault
condition in one of the circuits (either outputs 1 through 4, auxiliary power, ground fault, or battery). A
fault condition in the LEDs corresponding circuit will turn on the LED (labeled on the board). The
POWER LED will normally be on and turn off to indicate an AC Fail condition. See Figure 2-5 for loca-
tions of LEDs. Their functions are as follows:
DESIGNATION MARKING COLOR DESCRIPTION OPERATION
D S1 OUT1 Yellow NAC 1 trouble LED On = Alarm (active) mode; Off = No alarm, no trouble
One blink per second = Open wire detected
Two blinks per second = Shorted loop detected
Three blinks per second = Over current detected
D S5 AUX/PS Yellow Auxiliary power output On = Aux power switched on
trouble LED One blink per second = Aux power switched off after 30
seconds on battery power
D S6 GND Yellow Ground Fault LED On = ground fault detected; Off = no ground fault detected
D S7 BAT Yellow Battery trouble LED Off = Battery OK
One blink per second = Battery trouble
Two blinks per second = Battery charger trouble
D S8 PWR Green AC Power normal LED On = On AC power
One blink per second = On battery power
Two blinks per second = Incorrect power supply setup
Three blinks per second = System overcurrent detected
DS11 BUSY Yellow Test Mode LED On = PAD-4 operates in test/service mode (e.g. for firmware
upload) IT MUST BE RESET FOR NORMAL OPERATION
Off = PAD-4 operates in normal operation mode
NOTE 1: DS1 through DS8 will blink three times per second (after a reset) if the Input/Output configuration has a "Not
Applicable" setting as described in section 5.1.1.
NOTE 2: DS6, DS7, and DS8 will blink three times per second to indicate "Missing CLSA Module" when configured for ULC-
S527 (Canada) compliance. To configure the system for UL864 (US) compliance, remove J2 jumper and press the reset button
as described in section 2.3. See Figure 2-5 for location of the jumper and the reset button.
45

8.2 IMPROPER OPERATION

If there is improper operation of the activation of the outputs, check for the following:
Was the reset switch S2 pressed after changing the DIP switch, jumper settings or reconnecting to any
terminals/wiring/devices?
Are the DIP switch settings correct for the application?
(See Section 5.1)
Are the jumper settings correct for the application?
(See Section 5.2)
Are the inputs activating correctly?
Are the correct type of notification appliances connected?
(Conventional or Sync Strobes/Horns)
8.3 TROUBLE CONDITIONS

CAUTION: Troubleshooting is to be done only by qualified personnel who have been trained to
repair and test this fire alarm accessory.
Trouble conditions are sent to the fire alarm control unit from the trouble relay or associated input trouble
relay.
DESCRIPTION PROBABLE CAUSE
POWER LED (DS8) not lit. No AC input power
Low AC input power (Less than 90VAC).
Flashes if PAD-4 is on secondary power.
Notes:
1. DIP Switch S1 switches 9 & 10 set the delay for reporting AC power faults from 0 to 180 minutes or
never.
a. Will never be reported
b. Reporting will not be delayed
c. Reporting will be delayed 60 minutes
d. Reporting will be delayed 180 minutes
2. The green POWER LED turns off as soon as low AC or loss of AC occurs (does not wait for delay).
3. The trouble restores within 1 minute of the AC voltage restoring to normal level.
BATTRY LED (DS7) blinking. Low battery input power (Less than 20.4VDC).
No battery input power.
Shorted battery input.
If PAD-4 is configured to use battery power from another system, battery voltage below 20.4V is reported
as trouble to panel.
Note:
The battery input is checked about once a minute for troubles and restorals.
GRND LED (DS6) lit. One or more external field connections shorted to earth ground (Less than 40K ohms).
Note:
When the PAD-4 power is referenced to the control unit power; the ground detection circuit may be
disabled with jumper J9.
AUX. P.S. LED (DS5) blinking. Overcurrent condition on the auxiliary power output. (Trip with greater than 3.5 Amps.)
Note:
The circuit automatically tries to restore about once a minute.
OUTPUT1 LED (DS1) blinking or Associated NAC is open (Greater than 49K ohms).
OUTPUT2 LED (DS2) blinking or Associated NAC is shorted (Less than 18K ohms).
OUTPUT3 LED (DS3) blinking or Associated NAC has an overcurrent condition (Trip with greater than 3.5 Amps).
OUTPUT4 LED (DS4) blinking. Note:

The circuit automatically tries to restore about once a minute.
BUSY LED (DS11) lit. PAD-4 is in firmware upload mode. Press reset switch S2 to change to normal operation mode.
46

9. BATTERY MAINTENANCE 10. GLOSSARY

Perform the following tests at the recommended Alarm Signal. A signal that indicates the pres-
interval. Replace the battery set every four years ence of an emergency requiring immediate
or if any of the test criteria are not met. action, such as an alarm for fire from a manual
station, a waterflow alarm, or an automatic
Initiation / Reacceptance smoke detector.
1. Charger Test—With the batteries fully
Alarm System. A combination of compatible
charged and connected to the charger,
initiating devices, control units, and notification
measure the voltage across the battery set. It
appliances designed and installed to produce an
must read 27.3V +/- 0.3V.
alarm signal in the event of a fire.
2. Discharge Test—With full system alarm load,
the voltage on a fully charged battery must Audible Signal. A sound made by one or more
not fall below 20.4V after 30 minutes. audible notification appliances, such as bells or
horns, in response to the operation of an initiat-
3. Load Voltage Test—With full system alarm ing device.
load, the voltage on a fully charged battery
must not fall below 24.6V after one minute. Authority Having Jurisdiction (AHJ). The
organization, office, or individual responsible for
Testing Interval approving equipment, installations or proce-
1. Semiannually—Perform the Load Voltage dures.
Test.
CO Alarm. Carbon Monoxide alarms.
2. Annually—Perform the Charger Test and
Discharge Test. Class A Circuit. An initiating device or notifica-
tion appliance circuit in which all components
remain fully functional when a single open or
ground exists in the circuit.
Class B Circuit. An initiating device or notifica-
tion appliance circuit in which some or all compo-
nents may be disabled when a single open or
ground exists in the circuit.
End Of Line (EOL). A device used to terminate a
supervised circuit.
General Alarm. A term usually applied to the
simultaneous operation of all the notification
appliances on a system.
Ground Fault. A trouble condition in which a low
resistance has been detected between the
system wiring and earth ground.
Initiating Device Circuit (IDC). A circuit to which
initiating devices are connected.
Labeled. Equipment or materials to which a
label, symbol, or other identifying mark of an
organization acceptable to the AHJ and con-
cerned with product evaluation has been at-
tached. The organization’s label indicates that
the manufacturer complies with appropriate
standards, performs in a specified manner and
47

maintains periodic inspection of the production of

such labeled equipment or materials.
Listed. Equipment or materials included in a list
published by an organization acceptable to the
AHJ and concerned with product evaluation.
Inclusion in the list indicates that the equipment or
materials comply with appropriate standards, and
has been found suitable for use in a specified
manner. The manufacturer maintains periodic
inspection of production of listed equipment or
materials.
NEC. National Electrical Code also published as
NFPA standard 70.
Notification Appliance. An electrically operated
appliance used to indicate the system status such
as a bell, horn, strobe light or speaker.
Notification Appliance Circuit (NAC). A circuit
to which notification appliances are connected.
PAD. Power Auxilliary Device
Power Supply. That portion of the fire alarm
control unit which provides the power needed to
operate all control unit modules, as well as that,
needed to operate all electrically powered initiat-
ing devices and all notification appliances.
Trouble Signal. An audible signal indicating
trouble of any nature, such as a circuit break or
ground, occurring in the device or wiring associ-
ated with a fire alarm signal.
Zone. A designated area of a building.
48

Appendix A
The following lists compatible legacy devices for the PAD-4 and PAD-4-CLSA.
Maximum Number Per NAC
With Maximum Rating
PAD-4 PAD-4-
CLSA
Instruction Sync 3.0 Amp. 3.0 Amp.
Model Part Number Description Appliance Compatible Setting DC DC
U-MCS 315-545576 Selectable Candela Sync/ Strobe Only Yes 15cd 24 0

U-MCS-W 315-545800 Non-Sync Strobe 30cd 19 0
U-MCS-WE 75cd 12 0
U-MCS-AR 95cd 9 0
U-MCS-WP 315-049499 Selectable Candela Sync/ Strobe Only Yes 15cd 24 0

U-MCS-W-WP Non-Sync Strobe 30cd 19 0
Weatherproof 75cd 12 0
95cd 9 0
U-MCS-6090V 315-545614 Selectable Candela Sync/ Bx-F Bell Only Yes N/A 8 0
U-MCS-6090V-W Non-Sync Strobe with Bx-SS Bell Only N/A 7 0
Bell Signal Plates Strobe Only 15cd 24 0
30cd 19 0
75cd 12 0
110cd 9 0
Bx-F/Strobe 15cd 7 0
30cd 7 0
75cd 6 0
110cd 5 0
Bx-SS/Strobe 15cd 6 0
30cd 6 0
75cd 6 0
110cd 5 0
U-MHU-MCS 315-545787 Selectable Candela Sync/ Horn Only Yes Steady or Temporal 35 0
U-MHU-MCS-W 315-545807 Non-Sync Strobe with Strobe Only 15cd 24 0
Sync/Non-Sync Volume 30cd 19 0
Control Horn 75cd 12 0
110cd 9 0
Horn/Strobe Yes 15cd 16 0
30cd 14 0
75cd 10 0
110cd 8 0
U-MHU-MCS-WP 315-149460 Selectable Candela Sync/ Horn Only Yes Steady or Temporal 35 0
U-MHU-MCS-W-WP Non-Sync Strobe with Strobe Only 15cd 24 0
Control Horn, Weatherproof 75cd 12 0
110cd 9 0
Horn/Strobe 15cd 16 0
30cd 14 0
75cd 10 0
110cd 8 0
S-HPMG-MCS 315-545782 Speaker with Selectable Candela Strobe Only Yes 15cd 32 0
Sync/Non-Sync Strobe 30cd 25 0
75cd 13 0
110cd 9 0
2837 315-149460FA Selectable Candela Sync/ Horn Only Yes Steady or Temporal 35 0
Non-Sync Strobe with Strobe Only 15cd 24 0
Control Horn, Weatherproof 75cd 12 0
110cd 9 0
Horn/Strobe 15cd 16 0
30cd 14 0
75cd 10 0
110cd 8 0
49

Maximum Number Per NAC

With Maximum Rating
PAD-4 PAD-4-
CLSA
Instruction Sync 3.0 Amp. 3.0 Amp.
Model Part Number Description Appliance Compatible Setting DC DC
2705 315-049499FA Selectable Candela Sync/ Strobe Only Yes 15cd 24 0

Non-Sync Strobe 30cd 19 0
Weatherproof 75cd 12 0
95cd 9 0
2700 315-545576 Selectable Candela Sync/ Strobe Only Yes 15cd 24 0

Non-Sync Strobe 30cd 19 0
75cd 12 0
95cd 9 0
2830 315-545779 Selectable Candela Sync/ Horn Only Yes Steady or Temporal 35 0
Non-Sync Strobe with Strobe Only 15cd 24 0
Control Horn 75cd 12 0
110cd 9 0
Horn/Strobe Yes 15cd 16 0
30cd 14 0
75cd 10 0
110cd 8 0
50

Siemens Industry, Inc. Siemens Canada, Ltd. P/N 315-050217-4
Building Technologies Division 1577 North Service Road East Document ID A6V10406110
Florham Park, NJ Oakville, Ontario
L6H 0H6 Canada

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Model PAD-4

Distributed Power Module NAC Expander

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NFPA 72 National Fire Alarm Code

NFPA 101 Life Safety Code

C22.1 Part 1 Canadian Electrical Code

ULC-S524 Installation of Fire Alarm Systems

For Publications, contact:

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If input 1 controls outputs 1 and 2, and input 2 controls

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• Installation Environment • Maximum Standby Current: 1.0mA

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This page is left intentionally blank.

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mounting on concrete, especially when moisture

CLSA, P/N 500-850254. Required for ULC

Optional Configuration: FP2011-U1 Moun

1. Class A expansion module, Model PAD-4-

accessory not connected through a protective

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2.3 CONTROL UNIT MOUNTING

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2.5 TERMINAL DESCRIPTIONS AND ELECTRICAL RATINGS

Special Application, 24 VDC, 3A max.

NAC2B+ NAC 2 Output (+) total current draw from

Special Application, 24 VDC, 3A max. the 4 NAC outputs and

the auxiliary power

output m ust not exceed

Special Application, 24 VDC, 3A max. 6 am ps for FP2011-U1

Terminal Blocks TB10 - TB16: 22 AWG Min., 12 AWG Max.

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2.6 WIRING THE PAD-4

*J1 - Set Jumper J1 to 2-3 for normal operation

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USER-SUPPLIED 12-14 AWG

CAUTION: INSTALL PLASTIC GUARD ON

USER-SUPPLIED 12-14 AWG

CAUTION: INSTALL PLASTIC GUARDS ON

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2.6.1.1 Wiring from FP2011-U1 and

Brownout PSSI GND +24V

SEE FIGURE 2-6b FP2012-U1

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2.6.2 Battery Connection

The following steps and diagram explain how to B-

connect the Siemens BT-33, 7 A.H. battery set to

PAD-4 BATTERY CONNECTIONS

Terminal J6 Description Ratings 1

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2.6.2.1 Multiple Module Battery Connection To each PAD-4

a) Both PAD-4 boards must be located within

The following steps and diagrams explain how to

1. Install a battery connection splitter (see

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2.6.3 Class B (Style Y) Input/Output NAC Wiring