Overhead Paging System not Working

**UPDATE PLEASE READ**

We plugged the stack into a new UPS we had on hand so the following fix should be no longer needed. The lights in the yellow circles in attached screenshot should still be the first thing we check when there is an issue. Those devices are plugged into the UPS on the floor behind the stack.

*2/27/26 -- Some zones were working, but others such as Imaging, Clinic, 2nd floor IT were not.  Resolved the issue by unplugging everything plugged into the newer UPS as well as the 4 black modules on the wall and two grey modules below the black ones.  

Test paging system from phone by dialing ex2222 and then 0-0. 

See picture for specifics: Below explains the annotations

-Check yellow circles for lights

-Toggle switch in red circle if no lights are present

**NW PT**

If PT reports a constant sound from the overhead speakers, there is an adapter hanging on the wall in the data room off the gym. Unplug it several times until the power brick below is steady green.