Quick Start Guide
29
Appendix 2.3
FAQ on RS-485 Cable
Appendix Table 2-1
Malfunction, possible reason and solution
Malfunction Possible Reason
Solution
The Camera
can perform
self-check,
but is out of
control.
Baud rate/address of the host
and Camera are not matched.
Modify the baud rate/address of the host or
Camera to be matched.
Positive electrode and negative
electrode of RS-485 cable are
misconnected.
Connect cables to the positive electrode and
negative electrode correctly.
Loose connection.
Connect the cables firmly.
RS-485 cable is broken.
Replace RS-485 cable.
The Camera
can be
controlled,
but the
operation is
not smooth.
RS-485 cable is in poor contact.
Connect the RS-485 cable firmly.
A RS-485 cable is broken.
Replace RS-485 cable.
The distance between the host
and Camera is too long.
Install terminal resistance.
Too many cameras are
connected parallelly.
Install RS-485 distributors.