Motorola BTS Training
Motorola BTS Training
Motorola BTS Training
State the functional areas of the Horizon II macro cabinet. Describe the functions and operation of the Horizon II macro Digital modules. Describe the cabinet RF Components.
Antenna
RF interface to Antenna ( Transmit - Combining and filtering) (Receive Amplification and filtering)
CTU2
CTU2
CTU2
CTU2
CTU2
CTU2
E1 Link
The Horizon II macro BTS hardware supports the following functionality: Support of 6x double density CTU2
Single or Double carrier per Radio.
Expansion of Horizon II macro cabinets to support 24 carriers per BTS site. Horizon II Expansion Multiplexer (XMUX) Site Input/Output (I/O) Panel Interoperability with current M-Cell and HORIZON macro products
Cooling Fans
CTU2
SURF2
Tx Blocks
Cabinet Power Supply Maximum 4x PSU per cabinet One for Redundancy Depends on the number of Radios fitted. The Cabinet can support the three types of power supply +27V (negative earth) -48V (positive earth) Nominal 120/240V AC
Nominal Voltage
+27 V dc +19.5 to +30 V (negative earth) dc -48 v dc (Positive earth) 120/240 V ac (50 to 60 Hz)
204A (at nominal voltage) -39 to 72 V dc 99A (at nominal voltage) 88 to 270 V 45A (at nominal voltage)
Power Supply Units All three unit types support the same PSU Alarms: O/P over/under voltage. I/P under voltage. Over temperature. Internal Fan failure.
6x CCB for CTU2 2x Push Button HIISC 2x Push Button SURF2 1x Tx RF Blocks 1x FAN trays
Status LEDs
Compact Flash Card slot contains 32Mb of memory. TTY MMI connection for 9 pin D type connector. CAL PORT Calibrates the Sync Block. The 8K Reference is used in GCLK calibration. The NIU Ethernet and SYNC/NIU TTY Port are for factory use only.
Reset Buttons CPU is a Soft Reset (Reset Controllers Main Processors. Software remains in RAM). FULL is a Hard reset. Removes software from memory.
Reset Buttons
TTY MMI
CAL Port
24?
Control Interface Internal 2048 kbps TDM interface with 32 timeslots. External E1 or T1 interface. Internal E1 or T1 interface.
Frequency Reference
Radio(s)
Field Programmable Gate Array (FPGA) similar function as the ASIC 64Kb switch incapable of sub-rate switching
Cabinet Expansion The Cabinet can be expanded up to 3x Horizon II macro Cabinets Can be expanded with Horizonmacro and Mcell6 cabinet combinations. Expansion Kit 1x XMUX card 1x Input/Output (I/O) card 1x 2m Fibre Optic cable
TDM
HIISC NBSC
Alarm
Cabinet Temperature Control Operating range -5 C to +45 C Three Internal FAN units speed controlled 3x Cabinet Temperature Sensors
1x (70 C) for cabinet alarm 2x (85 C) to shutdown the cabinet, reset at 55 C.
Horizon II Site Controller (HIISC) Performs functions of: MCUF, NIU, FMUX and BPSM in Horizonmacro cabinet. Cabinet supports 2x HIISC cards Master/Slave ( redundancy) Compact Flash card (32 Mbyte memory)
XMUX Location
XMUX in slot 0
GPS connection
Expansion configurations
E1 Horizon II macro (6xCTU2) X M U X Horizon II macro (6xCTU2)
E1
X M U X
F M U X
Horizonmacro (6 x CTU)
E1
X M U X
F M U X
M-Cell 6 (6 x TCU)
F M U X
F M U X
Horizonmacro (6 x CTU)
Cabinet Alarm Module Collects All internal Cabinet Alarms Controls the PIX connection (customer external alarms) Process Antenna VSWR alarms Note: NOT backwards compatible to the Horizonmacro cabinet
Alarm Board
Mains ALL LEDs are GREEN when the equipment is OK
Door 1
LVD
Fan 0
Fan 1 & 2
Compact Transceiver Unit ( CTU2) Single Density Mode High Power 63W (48dbm) 900MHz 50W (47dbm) 1800MHz Normal Power 20W (43dbm) 900MHz 16W (42dbm) 1800MHz
Double Density Mode Normal Power 20W (43dbm) 900MHz 16W (42dbm) 1800MHZ
CTU2 Receiver Sensitivity Performance EGSM900 -110.5 dBm, static channel -107.5 dBm, faded channel DCS1800 -111.5 dBm, static channel -108.5 dBm, faded channel
TTY INTERFACE
VCAT INTERFACE
Tx Status A LED
Tx Status B LED
PA Mode Switches
PA Temp.
PA Pad Switches
Phase Adjust
*
Branch B VVA PA Branch 2 Fwd Power Detect B 2nd Temp.
RF Equipment
RF Equipment
Expansion
VSWR Monitoring
Antenna
To SURF
Rx Filter
VSWR Monitor
Tx Filter
The Antenna VSWR monitoring function is used to detect faults in antennas or antenna path connections.
Tx
Tx Block
CTU2
Signal
Alarm Board
Cabinet TX Blocks
Transmitter RF Blocks New RF Blocks: DUP - Duplexer HCU - Hybrid Combiner Unit DHU - Dual Hybrid Combiner Unit Connecting Panels Blanking Plate Feedthrough plate
Transmitter Blocks
Blanking Plate
Used to control the Air flow within the cabinet
Feedthrough Plate
Duplexer- DUP
Connects a single CTU2 to a single Tx/Rx Antenna. Typical 1db loss.
New Cabinet Type - horizonmacro2 (24) - horizonmacro2_ext (25) Equipping the DRI Density is required
Single or Double (called the associated DRI)