18
Installing Signal Monitoring Cables (Using the MON Port)
e
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Mapping Relationships Between the Signals over Different Cables
CLK/TOD/MON port
COM_IN port
HEUA board
8 7 6 5 4 3 2 1
If the CLK/TOD/MON port on the RTN 905 needs to receive both external clock signals and outdoor cabinet
monitoring signals, the pin assignments for the signaling monitoring cable vary. For details, see the hardware
description. In this case, pin 8 of the RJ-45 connector connected to the network interface on the CMUA
(COMIN) board does not need to be connected.
NOTE
RJ-45 Connector of the Network Interface to the Cable
on the CMUA (COMIN) Board
RJ-45 Connector (CLK/TOD/MON) of the Network
Port to the Cable on the RTN 905
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
-
