- Analog Door Chime Box
- Self-contained intercom unit typically used to monitor an entrance door
- Buzzes all extensions programmed to receive
- Requires 2PGDAD Module connected to DSX Digital Station (16ESIU) PCB
- DSX-80/160: No built-
- Self-contained intercom unit typically used to monitor an entrance door
- Buzzes all extensions programmed to receive
- Requires 2PGDAD Module connected to DSX Digital Station (16ESIU) PCB
- DSX-80/160: No built-

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