Dahua Technology DHI-IVSS7008 - 4 Starting the Device; Device Startup Procedure

User's Manual
15
No.
Name
Description
11
Alarm Input
16 groups (1–16) alarm input ports. They are
corresponding to ALARM 1–ALARM 16. The alarm
becomes valid in low level.
●
A and B: Control the A/B cable of the RS–485
device. It is used to connect to the PTZ
camera. Please connect 120Ω between A/B
cables if there are too many PTZ decoders.
●
: GND end.
Alarm Output
8 groups of alarm output ports (NO1 C1–NO8 C8).
They output alarm signal to the alarm device.
Please make sure there is power to the external
alarm device.
●
NO: Alarm output port of Normally Open
type.
●
C: Common alarm output port.
●
: GND end.
2.3.3 Dimensions
Figure 2-21 Dimensions with LCD (mm [inch])