Appendix I - Analysis And Solution Of Common Problem - Comelit RS485 Mode D'emploi

Appendix I - Analysis and Solution of Common Problem

Issue
Nothing on LCD
after item is
turned on
Can't control the
target dome
camera
Notice: the above solutions of common issues are just for your reference.
If there are some special issues, please contact your dealer to get technical
support.
Possible
Reason
No power
Protocol is
wrong
Baud rate is
wrong
Address is
wrong
Solution
Check power cable connection and
connect it well
Make sure power is 12 VDC
Check protocol of keyboard. Make
sure it is the same to the dome or
PTZ camera.
Check baud rate of keyboard. Make
sure it is the same to the dome or
PTZ camera.
Check address of keyboard. Make
sure it is the same to the dome or
PTZ camera.
12