NEC PC-8201A - Page 191

APPENDIX B
Optional Equipment Available with PC-8201
Ibe Interface Connectors
• RS-232C 25 pin D SUB
RS-232C 14
Pin number
Signal name
Remarks
1
GND Protective ground
2
TxD
Transmit data
3
RxD
Receive data
4
RTS
Request to send
5 CTS
Transmission authorized
6
DSR
Data set relay
7
GND
Signal ground
8
DCD
Data carrier detect
to
20
DTR
Data carrier ready
22
RD
Bell detect
25
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APX B—1