ConfiguringtheHost Computer for RS-232 Serial Interface
RS-232 Cabling
RS-232 cable pinouts are shown in the tab le below. For details on RS-232 signal names,
consult the RS-232 Standard do cumentation.
Origination
(Mod. 8 x 8)
Termination
(DB9S) Name Dir Description
1 8 RTS Out Printer is ready to rece ive data
2 3 RX In D ata to the printer
3 2 TX Out Data from the printer
4 5 GND -- Signal, eart h, and power ground
5 7 CTS In Depends on software sele ction
6 6 DTR Out Indicate printer is online
Modular Plug
RS-232 Signal Levels
The serial interface uses standard RS-232 si gnal levels as shown in the table b elow:
SignalLevel Input Output
MARK( 1) -27V to -5 V -5 V
SPACE (0) +5Vto +27 V +12V
RS-232signal levels.
4