CCTV Camera Pros Viewtron Video Surveillance DVRs - HD-SDI and Standard Definition CCTV Recorders - Manual (Page 10)

10
Part Name and Functions (Rear) – Standard Type
<Ex. 4HD+8SD Model >
No. Part Functions
①
Power Switch Used to Power On/Off
②
VGA VGA Video Signal Output Port
③
SPOT A live screen output port, separate from the VIDEO OUT.
CH’s SD Composite Video Signal Input Port (BNC type connector)
④ HD-SDI HD-SDI Video Signal Input Port
⑤
AUDIO Audio Signal Output Port (RCA jack)
⑥ HDMI HDMI connector port
⑦ RS-232 RS-232 Port (To debug)
⑧
USB Port USB connector port
⑨
LAN NETWORK (LAN) connector port.
⑩
ALARM IN
Alarm Input port
(1~8 CH and G(ground).)
RS485 Used for RS-485 communication (TX+, TX-, RX+, RX-)
ALARM OUT Alarm Output port (NO+C Or NC+C)
⑪ DC 12V DC 12V Power Input Only