120 FX6000 INSTALLATION AND OPERATION MANUAL 25-14683-C December 2019 www.eaton.com
Appendix
Intrinsically safe zone monitor unit wiring (CZMU352-IS)
Installation
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 below
5. Recommended Cable Type: FIRETUF, FP200, MICC
ote: N No addressing of the interface is required. See control panel operation
for details. There are no serviceable parts so no maintenance
procedures apply
Standard connections
ote: N
1. This detection zone can only be used with intrinsically safe detectors SLR-E-IS
(optical) / DCD-1E-IS (Heat) with the non-diode base YBN-R/4IS
2. The call point zone can only be used with BG3 I/S call points
3. Only connect cable screen to its adjacent earth terminal
4. The end of line resistor must always be fitted, even if the spur is unused
5. Maximum spur length – See BS5839 Pt1:2001 for Zone Coverage
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