Connecting The Ac Transformer; Earth Ground - ADEMCO 5110XM Installation Instructions Manual

The system will not switch to the backup dialer unless it detects a fault (less
than 2 volts) on the main telephone line. This means that if a report does not
go through on the main phone line due to a programming error, the backup
dialer will not be activated.
The 5110XM will transmit reports in the following order: alarms (fire,
emergency), fire supervisories and troubles, then the remaining types of
messages. See the SYSTEM COMMUNICATION section for a description of
communication formats, the types of messages transmitted by the control, and
for the dialer programming defaults.
Connecting the AC Transformer and Backup Battery
Due to the nature of this product, the transformer must be hardwired into the
premises electrical system. Therefore, we recommend wiring all zones and
expansion modules according to each section's instructions before powering up
the system for programming and testing. Refer to Section 9: FINAL POWER
UP for specific instructions on how to connect the AC transformer and battery.
If desired, you can wire, program, and test each section individually by
temporarily powering up the control and testing each section before final power
up.
Earth Ground Connections
The 5110XM requires connection to a good earth ground in order to provide
proper 120VAC shock hazard protection, lightning transient protection, and
earth ground fault detection.
Refer to the National Electrical Code for proper earth grounding methods.
To make earth ground connections, do the following:
1. Run an earth ground wire into the transformer enclosure via the same
knockout used for 120VAC wiring.
2. Use a wire nut (not supplied) to splice this earth ground wire to the green
flying lead located inside of and bonded to the transformer enclosure. Push
the mated wires into the enclosure.
3. Connect the green flying lead which emerges from the top of the transformer
enclosure to the 5110XM's earth ground terminal (Terminal 8).
4. Replace the transformer enclosure cover after wiring is complete.
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