VT-PTZ12WH
17
2.9 Connections
•
How to
Connect RS485
The dome camera has a built-in RS-485 receiver so that it can be controlled
remotely by an external control device such as a joystick controller or a DVR.
RS-485: Connect the TXA (Tx+) and TXB (Tx-) of the RS485 control devices
(KBD, DVR
…
) to TRX+, TRX- of the dome camera.
RS-485 does not allow for a star connection layout. A splitter is required if a
star connection layout is desired. RS-485 guarantees 1.2 Km of data line
routing. A repeater is recommended to extend over 1.2 Km.
•
Connecting
Video output
Figure 2 – Basic installation diagram
•
Connecting Alarms
AL1 to 4 (Alarm In)
Magnetic, PIR or other external sensor devices can be used to signal the
dome camera reacting to an event.
See Chapter 3.2 — Program and Operation for configuring alarm input.
GND (Ground)
NOTE: All the connectors marked
GND
are common.
Connect the ground of the Alarm input and/or alarm output to the GND
connector.
NO / NC (Normally Opened or Normally Closed dry contact relay output)
The dome camera can activate external devices such as buzzers or lights
using dry contact relays. Connect the device to the NO (NC) (Alarm Out) and
COM (Common) connectors. See Chapter 3 — Program and Operation for
configuring alarm output.
•
Connecting the P
ower
Connect AC 24V 40VA power to the dome camera.
Use certified / Listed Class 2 power supply transformer only.
