Appendix Dloop Test (Rs-232C Interface) - Oki B4500 Maintenance Manual

APPENDIX D LOOP TEST (RS-232C INTERFACE)
1) Connect the test connector
2) Select "LOOP Test" in the system maintenance mode.
The codes transmitted from the TD signals are comparatively checked with the data received from
the RD signals. If any error occurs, the error message is displayed on the LCD.
43502101TH Rev.1
DB-25S made by
Cannon or
equivalent
Test Connector Connection Diagram
2
TD
3
RD
4
RTS
5
CTS
8
CD
11
SSD
20
DTR
6
DST
Oki Data CONFIDENTIAL
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