91INSTALLATION AND OPERATION MANUAL 25-16330-B December 2019 www.eaton.com
Appendix
Zone Monitor Unit Wiring
To install the device
1. Separate the two halves of the unit.
2. Drill out (or knock out) the required cable entries in the surface
mounting backbox.
3. Fit the back-box in position and pass the wires into it.
4. Connect the unit according to the diagram.
ote: N No addressing of the interface is required. See control panel
operation for details.
Figure 58. Zone Monitor Unit
otes: N
1. This unit can only be used with EFXN520 detector base and
compatible detectors.
2. Only connect cable screen to its adjacent earth terminal.
3. The end of line resistor must always be fitted, even if the spur is unused.
4. Maximum spur length - See BS5839 Part1:2002 for Zone Coverage.
5. Maximum number of call points allowed is unlimited.
6. Detector zone end of line device is EOLM-1 (supplied).
7. Callpoint zone has end of line resistor.
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