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Class A loop supervised outputs
For Class A loops the common I/O module provides four supervised outputs:
•
•
•
•
Fire alarm equipment output (OUT1)
Fire routing equipment output (OUT2)
Fire protection equipment output (OUT3)
Fault routing output (OUT4)
All outputs supply 24 VDC when active.
Figure 7: Common I/O module supervised outputs for Class A loops
1.
2.
3.
4.
5.
6.
7.
8.
OUT4 fault routing output LED
OUT2 fire routing equipment output LED
OUT3 fire protection equipment output LED
OUT1 fire alarm equipment output LED
OUT4 fault routing output
OUT3 fire protection equipment output
OUT2 fire routing equipment output
OUT1 fire alarm equipment output
Table 2: Supervised output specifications for Class A loops
Output
Output number
termination
Polarity
Fire alarm
equipment
OUT1
3K3Ω
Non-reversed
Fire routing
equipment
OUT2
3K3Ω
Non-reversed
Fire protection
equipment
OUT3
3K3Ω
Non-reversed
Fault routing
OUT4
3K3Ω
Non-reversed
8
Behaviour
Active in normal
position
1200C-2000C Fire Alarm Control Panel, Repeater, and Black Box Installation Manual