VT-PTZ Series
20
RS-485
①
Connect the wires to the TX+/TX- ports on the control device.
②
Connect to the RX+/RX- ports on the Speed Dome.
RS-422
①
Switch the RS-422 setting to “On” on the dip switch S4.
②
Connect the wires to the TX+/TX- and RX+/RX- ports on the control device.
③
Connect the TX+/TX- wires from the control device to the RX+/RX- and the RX+/RX-
wires to the TX+/TX- ports respectively.
STAR
A “Star” connection (as compared to the “Daisy Chain” connection) requires a splitter as
the RS-485 native connection does not support a “Star” connection layout.
Distance
The maximum distance for the RS-485 connection is 1.2 Km. Any distance exceeding
1.2Km requires a repeater.
2.6.2 Alarm connection
A variety of external sensors such as Magnetic contacts, PIR (motion detectors) and
other circuits can be used in conjunction with the alarm input/output of the Speed Dome
to various triggers.
Please refer the following charts when connecting the alarm wires.
J2 ALARM
A
COLOR
1 COM
A
BLACK
2 NC
A
BROWN
3 NO
A
RED
4 GND
ORANGE
5 ALARM
4
YELLOW
6 ALARM
3
GREEN
Alarm A
Alarm B