Cable Interface
The printer accepts standard R S-232C electrical signal
transmissions when it is connected to a DB-25S conn ector
configured as Data Terminal Equipment (DTE). For correct
operation, use all defined pins.
PC null modems
Plug the RS-232 cable into:
•A serial (RS-232) port on your host computer or
protocol converter
•The 25-pin RS-232 connector on your printer. See
"Installing the Printer" in your

Equipment Manual

.
The RS-232C cable interface is set up as a terminal device
(DTE):
Pin Description
3 Received Data
5 Clear to Send Input
6 Data Set Ready
2 Transmitted dat a
4 Request to send Output
20 Data Terminal Ready
1 Protective ground Ground
7 Signal ground
All other pins are open.
Communication
Requirements
3. Communication Requirements
3-5