IC Realtime Max 4, Руководство пользователя

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485 A
、
B
485 communication port. They are used to control devices
such as PTZ.
+12 （ C ）
Provide 100mA power to the main board. You need to provide
external power if the power is more than 100mA, otherwise it
will damage PC power.
Figure 3-6
Please refer to Figure 3-7 for more information.
4-ch grounding alarm inputs. (Normal open or Normal close type)
Please parallel connect COM end and GND end of the alarm detector (Provide
external power to the alarm detector).
Please parallel connect the Ground of the DVR and the ground of the alarm
detector.
Please connect the NC port of the alarm sensor to the DVR alarm input(ALARM)
If you need to reset the touched-off alarm remotely, you can use DVR to supply
controllable 12 V power to the alarm detector such as the smoke detector.
Use the same ground with that of DVR if you use external power to the alarm
device.
Figure 3-7
3.6.6 Relay Output Description
4 ways relay alarm output. Provide external power to external alarm device.
A, B connection
Screw