IC Realtime 4/8 H.264E HD SDI High Definition DVR - Manual (Page 81)

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CTRL 12V Control power output. The power output is off when the alarm is
canceled.
+12V It is rated power output.
Earth 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.
3.8.1.4 HD-SDI 1080P 1.5U Series
The HD-SDI 1080P 1.5U series product interface is shown as in
Figure
3-5 .
Figure 3-5
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.
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.
T+, T-, R+, R- 4-pin full-duplex RS485 port. T+，T- are the output cable and R+，
R- are input cable.
3.8.1.5 960H 4HDD 1.5U Series
The 960H 4HDD 1.5U series product interface is shown as in Figure 3-6.