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Installation 15088: J 10/22/99
Figure 4.7-4 NFPA Style Y Notification Appliance Circuit
Supervised and Power-Limited
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To next device on
SLC Loop
47K ELR, 1/2-watt (A2143-00)
Red
Black
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+
SLC LOOP Channel A
Supervised and power-limited
LIB Channel
Terminal 3 ( - )
Terminal 1 (+)
Shield Drain Wire
Alarm polarity shown!
Listed Power Supervision Relay
(Contacts shown in energized position)
Common +24 VDC
Notification Appliance Power
This power source must be power-limited.
(Refer to Figure 4-17)
Refer to the Device Compatibility
Document
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_
_
+
+
NOTES
• To provide accurate supervision, the power circuit wires should be broken at terminals 3 and 4 of the CMX and
not looped under the terminal hold-down clamp. Any time a power circuit is T-tapped, each branch must end with
a listed power supervision relay.
• For connection of the notification appliances, refer to the manufacturer's installation instructions packaged with
each device.
• For additional ratings, refer to Appendix A.
*Contacts shown in energized position
*
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