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Derrick LoweJul 26, 2025
Why does my Radionics Security System panel transmit PT BUS TROUBLE reports?
- KkimberlyhernandezJul 26, 2025
A short on the Data Expansion Loop or the ZONEX data terminals generates a PT BUS TROUBLE report. While the short remains, the panel responds as though the sensor loop for each point connected to the POPEX module was shorted. Check the wiring for shorts. Also, ensure all POPIT switches are set correctly.
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