HIKVISION DS7208HVI-ST/SE

3. DS80054 Mainboard Hardware Principle Diagram
DSP
Network
（RTL8201）
TW2866
（US1）
FLASHDDR∏
SP491
SGM9111
UTP
Interface
USB
VGA
Interface
VOUT
Interface
SATA
interface
LVC07A＋6303
RS232
interface
RS485
interface
Audio in
Video in
Audio out
AOUTinterface
Diagram1.1 DS80054 Hardware Principle Diagram
Note：
 TW2866 (US1) support 1 road audio and 4 road video input, voice talkback Line In input
and AOUT output
 VGA signal output directly from KY2010 chip, the external circuit by LVC07A + 6303
control VGA output amplification
 VOUT signal directly from KY2010 chip output, the external circuit control by SGM9111
VOUT signal amplifier output
 no alarm input/out of modules