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CBM-230/231 User’s Manual
21
CITIZEN
7.2 Connector's Pin Configuration
No. Signal Name Input/Output Function
1FG FrameGrand
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)