User`s manual

Table Of Contents
DigiMux
Appendices 143
Reason3: The DigiMux settings are incorrect.
Solution: Load Factory Settings, and then check to determine whether or not
there are failure symptoms.
Reason4: The Main Board is damaged.
Solution: Contact a qualified service person to replace the Main Board.
Symptom: There is an RS-485 remote communication problem.
The keyboard cannot control the DigiMux through the RS-485 connection, or DigiMux
cannot control dome cameras.
Reason: The RS-485 port settings are incorrect.
Solution: Change the settings on the DigiMux and/or the devices connected to
the RS-485 bus such that they match. For example, the ControlCenter
200 or 300 keyboard must be set to 4800 baud to work with the
DigiMux. See
RS-485 Setup on page 81 and RS-485 Port Settings on
page 82 for more information.
Reason2: A cable between the unit and a device failed.
Solution: Replace the cable.
Reason3: The RS-485 / transceiver circuit failed.
Solution: Contact a qualified service person to replace the Rear Board.
Symptom: There is no output on the Call Monitor.
Reason1: A cable between the unit and a device failed.
Solution: Replace the cable.
Reason2: The Main Board is damaged.
Solution: Contact a qualified service person to replace the Main Board.
Symptom: The full screen live video display fails.
In live video mode, the Main monitor multiple screen displays as desired, but the full
screen live view of any channel fails.
Reason: The Main Board is damaged.
Solution: Contact a qualified service person to replace the Main Board.