HIKVISION DS-7104HGHI-SH User Manual page 29

No. Item
9 RS-485 Interface
10 Power Supply
11 Power Switch
12 GND
13 LINE IN
14 eSATA
15 RS-232 Interface
User Manual of Digital Video Recorder
Description
Connector for RS-485 devices. T+ and T- pins connect to R+ and R-
pins of PTZ receiver respectively.
D+, D- pin connects to Ta, Tb pin of controller. For cascading
devices, the first DVR‟s D+, D- pin should be connected with the
D+, D- pin of the next DVR.
Connector for alarm input.
Connector for alarm output.
AC 100 ~ 240V power supply.
Switch for turning on/off the device.
Ground
BNC connector for audio input.
Connects external SATA HDD, CD/DVD-RW.
Connector for RS-232 devices.
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