RISCO Group GT490X - Manual (Page 20)

Typical Wiring Modes
Where Anti-Mask detectors are used, one of the below wiring modes may be utilised.
ELF1 wiring is used for detectors that have a
relay output (a pair of terminals) for Fault or
Mask.
The installer should check what output type
the detectors are, noting that all detectors
should be of the same type with regards to
the Fault / Mask output.
Typical ELF1 (End of Line Format 1) Wiring.
Typical ELF2 (End of Line Format 2) Wiring.
ELF2 wiring is used for detectors that have a
transistor output (a single terminal) for Fault or
Mask.
Note: For ELF2 wiring format the 12K
resistor must be linked to the positive side
of the zone terminals.
Fig.9
Fig.10
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PR5846 Rev12 490X QS Eng.qxd 10/05/2012 11:39 Page 20