Terminal resistor settings (IR cameras only)
Use SW2 switch number 8 to turn on/off the 120Ω terminal
resistor. When multiple PTZ domes are controlled through one
RS-485 bus in serial mode, there must be a terminal resistor
at the end of the RS-485 bus according to the RS-485 protocol
standard. To ensure that the whole serial system operates
normally, the PTZ dome at the end of the RS-485 bus needs
to enable the terminal resistor.
Table 9: Set the terminal resistor
Terminal matching
resistance
SW2 switch no.
8
Turn on the resistor ON
Turn off the resistor OFF
Note: The O-ring in the groove of the switch cover is
waterproof.
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