Rs485 bus termination, Vi-d5000 ir dome – Videoswitch CMOR Vi-D5000 Dome User Manual
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Vi-D5000 IR Dome
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VD601A.DOC
2.3.4 RS485
Bus
Termination
The 8th bit of DIP switch SW2 selects the RS485 bus terminating resistor.
This switch should bem set according to the dome’s us as follows:
Situation
Sw2-8
Single dome
ON
End of daisy chain of multiple domes, no alarm PCB in power supply
ON
Mid (i.e. not end) of daisy chain of multiple domes, no alarm PCB in power supply
OFF
Alarm PCB fitted in PSU.
ON