Handbook

Axell Wireless Limited
Technical Literature
WMATA CRCS Redundant Antenna System
General Overview
Document Number 60-228701HBK Issue No. 3 Date 28/05/2010 Page 52 of 114
TX RX
TX RX
1
2
POWER
ALARM
GAIN ADJ
POWER
ALARM
POWER
ALARM
POWER
ALARM
GAIN ADJ
MON
-20dB TX 1
MON
-20dB RX 1
MON
-20dB RX 2
MON
-20dB TX 2
TX 1 RX 1
TX 2 RX 2
TX 1 RX 1 TX 2 RX 2
DC/DC FAIL
ALARM
24V T3.15A12V T3.15A
+24/12V DC
B
D
C A
EF
G HI
L KJ M
O
N
P
R
Q
W
Y
X Z
U
T V
S
AA
BBCC
DD
EE
4.8.4. Dual Fiber Optic Unit 60-228703 Front View
A N type port “TX1”, Main Redundant D/L I/P from Splitter/Combiner Unit 60-228702
B N type port “MON -20dB TX 1”, 20dB test/monitor port coupled from D/L input to port “TX1”
C SC/APC optical port 1 “TX”, Main Redundant optical D/L O/P to Gallery Place Station CRAS System
D N type port “TX2”, Standby Redundant D/L I/P from Splitter/Combiner Unit 60-228702
E N type port “MON -20dB TX 2”, 20dB test/monitor port coupled from standby D/L input to port “TX2”
F SC/APC optical port 2 “TX”, Standby Redundant optical D/L O/P to Gallery Place Station CRAS
System
G SC/APC optical port 1 “RX”, Main Redundant optical U/L I/P from Gallery Place Station CRAS System
H N type port “RX1”, Main Redundant U/L O/P to Splitter/Combiner Unit 60-228702
I N type port “MON -20dB RX 1”, 20dB test/monitor port coupled from U/L output to port “RX1
J SC/APC optical port 2 “RX”, Standby Redundant optical U/L I/P from Gallery Place Station CRAS
System
K N type port “RX2”, Standby Redundant U/L O/P to Splitter/Combiner Unit 60-228702
L N type port “MON -20dB RX 2”, 20dB test/monitor port coupled from standby U/L output to port “RX2”
M Status Indicators for F/O TX Module 1 (Main Redundant D/L to Gallery Place Station CRAS System)
N Green LED “POWER”, Fiber Optic TX Power On indicator illuminated during normal operation
O Green LED “ALARM”, Fiber Optic TX Alarm indicator extinguished during alarm state
P Status Indicators for F/O TX Module 2 (Standby Redundant D/L to Gallery Place Station CRAS
System)
Q Green LED “POWER”, Fiber Optic TX Power On indicator illuminated during normal operation
R Green LED “ALARM”, Fiber Optic TX Alarm indicator extinguished during alarm state
S Status Indicators for F/O RX Module 1 (Main Redundant U/L from Gallery Place Station CRAS
System)
T Green LED “POWER”, Fiber Optic RX Power On indicator illuminated during normal operation
U Green LED “ALARM”, Fiber Optic RX Alarm indicator extinguished during alarm state
V Fiber Optic RX RF gain adjustment
W Status Indicators for F/O RX Module 2 (Standby Redundant U/L from Gallery Place Station CRAS
System)
X Green LED “POWER”, Fiber Optic RX Power On indicator illuminated during normal operation
Y Green LED “ALARM”, Fiber Optic RX Alarm indicator extinguished during alarm state
Z Fiber Optic RX RF gain adjustment
AA DC input (12V or 24V)
BB 3.15A Fuse for 24V DC input
CC
3.15A Fuse for 12V DC input
DD
Red LED “DC/DC FAIL” illuminated in alarm state (DC/DC convertor failure)
EE 15 pin “D” panel plug “ALARM” local alarm output to Krone terminal block on rack