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philiprussellAug 9, 2025
What to do if Rath Emergency Phones will not call out?
- Mmatthew02Aug 10, 2025
If your Rath Emergency Phone isn't calling out, start by checking the wires for 48VDC. If there's no voltage, ensure the phone is connected to the SLT interface on the Distribution Module; note that some SLT interfaces use only the blue and orange pairs. If you find 28VDC, the phone is incorrectly connected to the DKP interface. Also, be sure to dial any access digit needed to dial out of your building.