C a b l e S p e c i f i c a t i o n s

Null Modem

Network Interface

A null modem is a device that eliminates both a modem and a telephone line. When the printers are used with an asynchronous serial interface connected to a DTE host (such as a PC-compatible), a modem, modem eliminator, or a null modem is required. Figure A.6 shows null modem wiring.

Figure A.6 Null Modem wiring

Network interface communication is the most common for enabling multiple users to print from a host system.

For network interface cables, refer to your network software documentation.

A-144 5 0 5 / 4 5 0 5 p s o r 4 5 1 0 / 4 5 1 0 p s U s e r ’ s G u i d e

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Xerox 4505/4505ps, 4510/4510ps manual Null Modem Network Interface, Figure A.6 Null Modem wiring