User's Manual
23
Figure 2-29 IVSS7124 rear panel (single power)
Figure 2-30 IVSS7124-M rear panel (redundant power)
Table 2-10 Rear panel description (2)
No. Name Description
1 Power input port Inputs 100V-127V/200-240V AC power.
2 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 120 Ω between A/B cables if
there are too many PTZ decoders.
●
: GND end.
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