User`s guide

User’s Guide
70 Appendices
Reason 2: Penalty lockout following three incorrect password attempts.
Solution: Press Esc +1+2 to reset the multiplexer, then input the password
again.
Symptom: Front panel keys are not working.
Reason: Front panel keys are locked.
Solution: Press Esc and Lock key together to unlock the front panel.
Symptom: When more than one remote keypad is connected, the remote keypad does not work properly.
Reason: Remote control keypad IN/OUT connectors were not connected
properly.
Solution: Please refer to Appendix D: Remote Control Panel User’s Guide on
page 62 for the correct connection method.
Remote Control Panel
Symptom: The channel LEDs always light one by one
Reason 1: Connecting cables may be loose or improperly installed.
Solution: Make sure that the RS-485 cables are properly connected.
Reason 2: Multiplexer may be assigned an incorrect RS-485 address.
Solution Assign the multiplexer a RS-485 ID address between 224
and 239. (See RS-485 Protocol on page 46)
Reason 3: Transmission baud rate incompatible with cable rating.
Solution Set baud rate to factory default setting. (9600 baud). See
RS-485 Protocol on page 46 for more information.
Remote control panel LEDs light at random OR the LED status display does not correspond to multiplexer’s status
Reason: More than one multiplexer has the same RS-485 ID
address.
Solution: Verify that all multiplexers have a unique RS-485 ID
address. (Refer to RS-485 ID on page 55 and RS-485
Protocol on page 46)