Knowledge Base

Known issues, troubleshooting


Door strike is 1 milisecond.

The door relay has 2 connections: NC and NO. Make sure you connect to the right one. If your loc...


Suprema master slave devices

Official statement from Suprema: devices supporting master mode can act as master controllers. U...


Connecting PoE and DC power supply at the same time

When two power sources are connected, the device cannot tell which power will be used. Even if y...


System with large numebr of HID devices - some is not online

When system has a lot of HID devices, increase HERE_ I_AM interval to at least 120 seconds. This ...


Network topology. RS-485: Daisy-chain or Multidrop?

Q: How does multidrop differ from daisy chain topology? I am using RS 485 standard and modbus pr...


Axis card format changes

Since CredoID version #3.4.582 Axis card format is changed: card format is retrieved from control...


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