Installation Guide

Table Of Contents
3-48
Connecting to a Third-Party Device through an RS-485 Port in Transparent Channel
Mode
The wiring for other cameras are similar, the following takes box camera as an example.
When using an RS-485 cable with an RJ-45 connector to connect to a third-party device, you can
connect the RJ-45 connector to the third-party device cable as follows:
Twist T+ and R+ of the RJ-45 connector and connect them to the RS485+ of the third party
device cable. Twist T- and R- of the RJ-45 connector and connect them to RS485- of the third
party device cable, as shown in Figure 3-5.
If the third party device uses a ground wire, connect the ground pin of the third-party device
cable to the ground pin (pin 7 or 8) of the RJ-45 connector.
Figure 3-5 Wiring (for box camera)
(1) RS485+
(2) RS485-
(3) Control wire
Connecting to Alarm Input/Output Device
Alarm Input Connection
Figure 3-6 Wiring
(1) Alarm in
(2) Ground
(3) Alarm in device
1 2 G
DO+ DO-
ALM IN ALM OUT RS485
D+ D-
1
2
3
Third-party device
1
Alarm input of IPC
2
G
3