30
Installing Signal Monitoring Cables
e
CCUB board
COM_IN port
•
Mapping Relationships Between the Signals over Different Cables
For cabinet sharing, the signal monitoring cable is not required for the RTN 900.
8 7 6 5 4 3 2 1
RJ-45 Connector of the Network Port to the
Cable on the CCUB (COMIN) Board
RJ-45 Connector (TOD2) of the Network Port to the
Cable on the CSH/CST Board
Pin 1
TX+
White/Orange
Pin 6
RX+
White/Orange
Pin 2
TX-
Orange
Pin 3
RX-
Orange
Pin 4
RX+
Blue
Pin 8
TX+
Blue
Pin 5
RX-
White/Blue
Pin 7
TX-
White/Blue
Pin 8
GND
Brown
Pin 5
GND
Brown
Pin 3/6/7
No
connected
-
Pin 1/2/4
No
connected
-
NOTE
When using the CSHU or CSHUA board, connect the signal monitoring cable to the MON/TOD2 port. The
pin assignment is the same as that of the CSH or CST board.
Before installing a signal monitoring cable, remove the cable already connected to the COM_IN port on the
CCUB board. Then, connect a cable of a proper length to the RTN 900.
NOTE
COM IN
C
SH
S
T
A
T
P
RO
G
S
Y
NC
S
RV
NMS/COM
EXT
CLK/TOD1
TOD2
CF RCV
RST
A
CT
MON/TOD2 port
System control board