C a b l e S p e c i f i c a t i o n s
A-12
❖
4 5 2 0 / 4 5 2 0 m p U s e r ’ s G u i d e
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.
Null Modem
Network Interface
WUG-APPA Page 12 Black,Cyan Sunday, January 22, 1995 8:55 PM
