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karen21Aug 28, 2025
What is the meaning of 'E = communications error' on DSC PC4020 Control Panel?
- JJeremy AveryAug 28, 2025
The 'E = communications error' message means that the main panel has lost communications with the module.
What is the meaning of 'E = communications error' on DSC PC4020 Control Panel?
The 'E = communications error' message means that the main panel has lost communications with the module.
What does '4702 Battery TBL' mean on DSC Control Panel?
A '4702 Battery TBL' message indicates that the battery connected to the PC4702 is low.
What does '4820 Battery Trouble' mean on DSC PC4020?
A '4820 Battery Trouble' message means that the battery connected to a PC4820 module is low.
What does 'Device Low Batt' mean on my DSC Control Panel?
A 'Device Low Batt' message means that a wireless zone has a low battery.
What does 'Module Com Fault' mean on DSC Control Panel?
A 'Module Com Fault' message indicates that the DSC panel has lost communications with a module.
General| Partitions | 8 |
|---|---|
| Power Supply | 16.5 VAC, 40 VA transformer |
| Input Voltage | 16.5 VAC |
| Keypad Support | Up to 16 keypads |
| Communication Formats | Contact ID, SIA |
| Battery Backup | 12 V |
| Communication | PSTN |
| Weight | 2.3 kg |
