PLANET CAM-ISD52 - Manual (Page 30)

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User’s manual 29
standards, problems such as signal reflections, lower anti-interference performance
arise when the cables are long in the connection. The reliability of control signals
could be downgraded with the phenomena that the dome does not respond to or
just responds at intervals to the controller, or does continuous operation without
stop.
In such circumstances the usage of RS-485 distributor is recommended. The
distributor can change the star configuration connection to the mode of connection
stipulated in the RS-485 standards. The new connection achieves reliable data
transmission.
RS-485 distributor