Citizen Systems CBM-230/231 - Manual (Page 27)

CBM-230/231 User’s Manual
CITIZEN 27
7.2 Connector's Pin Configuration
No. SIGNAL NAME I/O FUNCTION
1 FG Frame Grand
7 GND Signal GND
3 RD Input Receiving data
20 DTR Output Printer BUSY signal
2 TD Output Transmission data
6 DSR Input Data set READY
[Cautions] 1. RS-232C signals are based on the EIA RS-232C.
2. When no data is being transferred, the receive data should be always maintained in the mark
state.
Applicable connectors (D-Sub connectors)
Printer side : 17LE-13250 (Equivalent to DDK)
Cable side : 17JE-23250 (Equivalent to DDK)