HIKVISION DS7208HVI-ST/SE User Manual

4. DS80054 Mainboard Hardware Modules Diagram
Diagram 1.2 DS80054 Mainboard Hardware Modules Diagram
5. DS80054 Mainboard Hardware Module Introduction
5.1. Audio Video A/D Module
 Video A/D Module Main Control Chip：TW2866 Audio
1) TW2866（US1）PIN 6 control first audio input（input matching resistance
100 (RU9) and capacitance (CS18)）
2) TW2866（US1）PIN 13/17/21/25 control 1-4 road vedio input（BNC input
matching 4 HK-5 production tube（ TVS2/4/6/8 ）； 4 75Ωresistance
（ RV2/4/6/8 ）； 4 100Ωresistance （ RU1/2/3/4 ）； 4 capacitance
（CS12/8/13/11））
3) TW2866（US2）PIN 13/17/21/25 control 5-8 road vedio input（BNC input
matching 4 HK-5 production tube（ TVS1/3/5/7 ）； 4 75Ωresistance
VGAmodule
RS485module
USB interface
Network module
VOUT module
SATA
power
module
A/D module
Power module
SATA interface
Clock module
RS232 interface
Network module
Front-panel interface

HIKVISION DS7208HVI-ST/SE Specifications

General

Brand	HIKVISION
Model	DS7208HVI-ST/SE
Category	DVR
Language	English