When I try to register the DualCom Plus, why does it keep giving me error E5?
Error 5 is ‘Comms Timeout’ and is usually a PSTN issue. It will usually be accompanied by A3 (i.e. it will automatically retry). If it eventually shows A8 E5, it has tried the maximum number of times. If this happens please contact Technical Support as it may be you need a 9 to dial out, a broadband filter or your customer has a low cost router and the NVM programming needs to be changed. < Back to Top DualCom Plus Fault Relay The DualCom Plus Fault Output has two terminals. These connect to a 'normally closed' relay contact. When the DualCom Plus needs to tell the Control Panel that there is a telephone line fault or a radio path fault, the relay contacts will open. Your Control Panel may have a special input purely for Digital Communicators or DualCom faults. If a fault is detected then the open contacts should stop the Control Panel from being Set. Some Control Panels have a voltage input for fault indication. Using the fault output terminals with a resistor will provide a rising or
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