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 77 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
E
J
F D
KL
A BC
I HG M
O
N
P
R
Q
W
Y
X Z
U
T V
S
AA
BBCC
DD
EE
5.11.4. Dual Fiber Optic Unit 60-228703 Front View
A SC/APC optical port 1 “RX”, Primary optical D/L I/P from Jackson Graham Building CRAS System
B N type port “RX1”, Primary D/L O/P to RF Failover Switch Unit 60-228905
C N type port “MON -20dB RX 1”, 20dB test/monitor port coupled from D/L O/P to port “RX1”
D N type port “TX1”, Primary U/L I/P from RF Failover Switch Unit 60-228905
E N type port “MON -20dB TX 1”, 20dB test/monitor port coupled from U/L input from port “TX1”
F SC/APC optical port 1 “TX”, Primary optical U/L O/P to Jackson Graham Building CRAS System
G SC/APC optical port 2 “RX”, Redundant optical D/L I/P from Carmen Turner Facility CRAS System
H N type port “RX2”, Redundant D/L O/P to RF Failover Switch Unit 60-228905
I N type port “MON -20dB RX 2”, 20dB test/monitor port coupled from D/L O/P to port “RX2”
J N type port “TX2”, Redundant U/L I/P from RF Failover Switch Unit 60-228905
K N type port “MON -20dB TX 2”, 20dB test/monitor port coupled from U/L input from port “TX2”
L SC/APC optical port 2 “TX”, Redundant optical U/L O/P to Carmen Turner Facility CRAS System
M Status Indicators for F/O TX Module 1 (Primary F/O U/L O/P to Jackson Graham Building 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 (Redundant F/O U/L O/P to Carmen Turner Facility 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 (Primary F/O D/L I/P from Jackson Graham Building 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 (Redundant F/O D/L I/P from Carmen Turner Facility 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/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