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Thermal Network Speed dome·Quick Start Guide
5
2.3
Alarm In/Out Connections
This section is only for the speed dome with alarm in/out functions.
The speed dome can be connected with alarm inputs (0~5VDC) and alarm
outputs. Refer to the following diagrams for alarm output:
JQC-3FG
Relay
30VDC
GND OUT
L N
～
220V AC
Relay Output
(10A 250VAC )
Diagram (left)
Diagram (right)
1A
OUT(n)
OUT(n)
+
- DC
DC Load
Relay Output
Positioning System OUT(n)
OUT(n)
Positioning System
Figure 2-3
Alarm Out Connections
The alarm provides the relay output (no voltage), and the external power supply is
required when it connects to the alarm device.

For DC power supply (left diagram), the input voltage must be no more than
30VDC, 1A.

For AC power supply, the external relay must be used (right diagram) to
prevent damages to the speed dome and avoid risk of electric shock.