Compatibility with Other I/O System Cabling
3B2 Computer PORTS/EPORTS Interface
Caution: Do NOT plug a 3B2 computer cross-over modular RJ-45 cable directly into the IPC-1600 RJ-45 receptacle (jack) connector. Inserting a 3B2 computer modular cable directly into an IPC-1600 jack does not provide RS-232C communication. Appropriate RJ-45 to DB-25 adapters must be used to provide proper RS-232C communication. See Figure B-13.
When an IPC-1600 replaces a 3B2 computer PORTS or EPORTS card, the existing serial I/O cables are used along with straight-through 10-conductor or 8-conductor modular cables and associated adapters to provide the serial I/O connections. Figure B-14shows how to connect IPC-1600 serial ports to existing 3B2 computer PORTS/EPORTS I/O system cabling. An IPC-1600 serial port is connected to the existing 3B2 computer 8-conductor cable using a terminal/printer adapter, ACU/MODEM adapter, and a 10-conductor modular cable. If an IPC-1600 AT&T ACU/MODEM (DCE) Adapter is used on the 10-conductor cable, the opposite gender 3B2 computer terminal/printer adapter is used on the 8-conductor modular cable (Figure B-14,Example A and Example B). Conversely, if a male ACU/MODEM adapter is used on the 8-conductor cable, a female AT&T Terminal/Printer (DTE) Adapter is used on the 10-conductor cable (Figure B-14,Example C).
B-24 IPC-1600 USER’S GUIDE
