Connector Pin Assignment; Description Of Input / Output Signal - Citizen CBM-910 Bedienungsanleitung

6.2

Connector Pin Assignment

SIGNAL SIGNAL
PIN NAME
1 FG
7 GND
2 TD
3 RD
20 DTR
23 RESET
Note: 1. Signals for RS-232C are based on EIA RS-232C level.
Applicable connector (D-sub connector)
Printer side :
Cable side :
6.3

Description of Input / Output signal

(1) Input signal
1) TD (TRANSMIT DATA) Serial transmission data signal.
2) RD (RECEIVE DATA)
Serial receive data signal.
3) DTR (DATA TERMINAL READY)
Input command or data while this signal is in ready state. Data input while the signal is BUSY will cause an
overrun error to occur. Data can be provided to the input buffer even if the printer is printing. Busy state may also
occur when power is applied, or during test printing, on-line, or when the printer is reset.
4) RESET
Signal resets the entire printer. (More than 4ms.)
5) FG(FRAME GND)
Case ground.
6) GND
Signal ground for the circuit.
CITIZEN
SIGNAL DIRECTION
HOST-PRINTER
←
→
←
→
17LE-13250 (Anphenol equivalent)
17JE-23250 (Anphenol equivalent)
FUNCTION
Frame ground
Signal ground
Transmit data
Receive data
Printer BUSY signal
Printer reset signal
19
CBM-910 User's Manual
RS-232C TTL