IC Realtime 4/8 H.264E HD SDI High Definition DVR - Manual (Page 84)

74
T+, T-, R+, R- 4-pin full-duplex RS485 port. T+，T- are the output cable and R+，
R- are input cable.
485 A/B 485 communication port. They are used to control devices such as
PTZ. Please parallel connect 120TΩ between A/B cables if there are
too many PTZ decoders.
3.8.1.9 960H 2U Series
960H 2U series product interface is shown as in Figure 3-10.
Figure 3-10
You can refer to the following sheet for alarm input and output information.
1，2，3，4,, 5, 6, 7,
8, 9, 10, 11, 12, 13,
14, 15, 16 ALARM 1 to ALARM 16. The alarm becomes active in low voltage.
NO1 C1，
NO2 C2，
NO3 C3，
NO4 C4,
NO5 C5 NC5 The first four are four groups of normal open activation output
(on/off button)
NO5 C5 NC5 is a group of NO/NC activation output (on/off button)
CTRL 12V Control power output. The power output is off when the alarm is
canceled.
+12V It is rated power output.
Earth cable.
T+, T-, R+, R- 4-pin full-duplex RS485 port. T+，T- are the output cable and R+，
R- are input cable.
485 A/B 485 communication port. They are used to control devices such as
PTZ. Please parallel connect 120TΩ between A/B cables if there are
too many PTZ decoders.
3.8.2 Alarm Input Port
Please refer to the following sheet for more information.
z
Normal open or Normal close type.
z Please parallel connect COM end and GND end of the alarm detector (Provide external
power to the alarm detector).
z Please parallel connect the Ground of the DVR and the ground of the alarm detector.
z Please connect the NC port of the alarm sensor to the DVR alarm input(ALARM)
z Use the same ground with that of DVR if you use external power to the alarm device.