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INM 725B Rev 21
14
STANDARD COMMS CARD DETAIL
2 ports are located in the C Cell within the Annunciator as shown above.
Port 2 gives an isolated RS485 port with the following pin out:
1 – Sync+
2 – RxA
3 – TxB
5 – GND
6 – Sync -
7 – RxB
8 – TxA
Port 4 is an Ethernet port which allows connection to an Ethernet network via a standard 8P8C
(RJ45) connection.
WARNING !
Installation, configuration and maintenance of this annunciator must only
be performed by competent service personnel
CB7515POP1 - COMMS CARD
COMMS CARD VERSION USED IN "C" CELLS
(UPPER SLOT)
Tx
C
Rx
PORT 4
PORT 2
REAR VIEW