Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 290)

17–8 Maintenance and Troubleshooting
Publication 2755-833
Solution: Place the AUX Terminal jumper on the logic board in
the CONFIG position and make sure the AUX port connector
does not have a jumper between pins 15 and 16 (NEMA Type 1)
or G and H (NEMA Type 4).
Problem: You are unable to perform manual data entry
functions at the AUX terminal.
Cause: The AUX port is set to configuration mode, not manual
data entry mode.
Solution: Using one of the AUX Terminal Selectors, switch the
AUX port to manual data entry mode. See Chapter 13.
Problem: No communication between decoder and host device.
Cause: Communication parameters (baud rate, parity, stop bits,
host protocol) of decoder are not set correctly or the parameters
were not saved, and the decoder restarted.
Solution: Make appropriate changes to communication
parameters, SAVE the configuration, and RESTART the decoder.
Cause: Improperly connected cable.
Solution: Check connections.
Cause: Improperly fabricated cable.
Solution: Verify connections using Appendix E.
Cause: Flexible Interface Module (Catalog No. 2760-RB) is not
configured properly.
Solution: Check module configuration.