Operating and Maintenance Instructions – 21
2. At the computer, initialize the serial port to 1200 baud, eight bit ASCII character code, one
stop bit, and no parity. Use the following MS-DOS
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Qbasic program as an example:
OPEN "COM2;1200,N,8,1" FOR RANDOM AS #1
PRINT #1, "CLOSE 5"
PRINT #1, "CLOSE? "
INPUT #1,A$
PRINT A$
END
Calibrating the Switch
No calibration is required.
Maintaining the Switch
Clean the connector ends with a lint-free tissue and alcohol before every mating. See the
Cleaning Connectors section.
Clean the internal connectors and the panel-mounted connector bulkheads periodically or
when high losses are suspected. The internal connectors can be accessed by removing the
connector panel:
1. Remove the retaining screws of the connector panel.
2. Slowly pull the panel out to the full extent of its guide rails (Figure 13).
Figure 13: Removing the Connector Panel
3. Remove the connectors from the connector bulkheads.
4. Clean the connector ends and the bulkhead mating sleeves with a lint-free tissue and
alcohol.
5. Reinstall the connectors into the bulkheads.
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MS-DOS is a registered trademark of Microsoft Corporation.
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