Legacy Unison Stations Connected but Unresponsive
Symptoms/Issue
Pressing a button on a Unison station that has power results in no response from the lights or station. If a button assigned to Off is present, its LED may be lit.
Description/Explanation of Issue
A Unison processor (CMEd, CME or CMEi) with an incorrect processor number will connect to stations, preventing the indicator waterfall seen when a station is disconnected, but it won't know what to do with them. This results in the station appearing connected but completely unresponsive.
Fix/Solution
- Enter the Arch -> Setup -> Processor/Address menu on the processor.
- Scroll to the correct processor number. In most cases, this will be Processor 1. In a system with multiple CME or CMEi processors in the same system, the number may vary.
- Press Enter. The screen will read "RESET NOW" and "Enter." Press the Reset button and allow the processor to reboot.
Related Links/References
- Unison Processor has No Architectural Configuration -- see here for information on navigating Unison menus