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Signal Test of RS-232C in MJ1 and MJ2
Select [MJ1] (or [MJ2]) and [RS-232C] in [Communication Port] by pressing each switch.
• Loop-back Test
Check the signals, [SD] and [RD].
Execute the test by connecting the data transfer cable (ZM-80C) to CN1.
1. Set the adaptor, ADP25-9, which is attached to ZM-80C, to ZM-80C. And connect the modular jack
side of ZM-80C to MJ1 (or MJ2), ADP25-9 side of ZM-80C to CN1.
2. The test is OK, if the [OK] lamp turns on when the [Self-Loop Test] switch is pressed.
Self-Loop Test
CTS
NG OK
RTS
Self-Loop Test
CTS
NG OK
RTS
CN1 RS-232C
MJ1 RS-485
MJ2
Communication Port
1 Operation of ZM-
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