Appendix B: Interface Specifications - OKIDATA 120 Handbook

APPENDIX B: INTERFACE SPECIFICATIONS
Your printer is sold with an interface cable that connects
your printer to your computer. More technically-oriented
owners, however, may wish to design their own cable for
special needs. The information here will assist the experi-
enced in identifying the printer's configuration and wiring
requirements.
This printer requires a shielded serial interface cable with
the following connectors:
Printer end: DIN 6-hole socket TeS 4460-01-1-11 or
equivalent
Cable end: DIN 6-pin plug TeS 0566-01-0201 or
equivalent
Signals for Serial Pin Assignments
Pin Direction Signal Symbol Description
1 From pri nter Service request
SRQ
Not used
2
-
. Ground
GND -
3 Both directions
Attention ATN Low: Attention
frame
High: Print data
frame
4 Both directions Clock
CLK
Data sample timing
and data frame end
signal
5 Both directions Data
DATA Receive data and
- -
response signal
6 To printer
Reset RESET Reset signal to
initialize printer
CONNECTOR APPEARANCE
8-1