Samsung SVR-440 - Manual (Page 14)

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2.3.2 Rear Connection Terminals
① Video in : Camera Input(NTSC/PAL)
② Video out : Composite Video Output
③ VGA : VGA output for PC monitor
④ RS-232
⑤ Sensor in : Sensor Input
⑥ Alarm out : Alarm Output
⑦ LAN : RJ45 connector
⑧ DC12V : DC12V Power connector
⑨ AUDIO IN : Audio Input
⑩ AUDIO OUT : Audio Output
⑪ Switches
NTSC/PAL, BNC/VGA Select Switch
⑫ RS-485/422 : PTZ Camera control use
⑬ Fan
② ③
④
⑤
⑫
⑦ ⑧ ⑩
⑪
⑥
⑬
①
⑨