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INSTALLATION AND OPERATION MANUAL 25-16732-A November 2019 www.eaton.com
2.6 System Wiring
This section describes how different types of device can be
incorporated into a mixed system with zones configured as
either BiWire Ultra or Conventional mode. Figure 5 shows a
typical system with both BiWire and Conventional zones.
For zones configured in BiWire mode the zone can be wired
for both BiWire detection (detectors and call points) and
BiWire alarm (wall/base sounders, VADs and I/Os) devices
terminated with an EOLM-3 embedded in the last device.
Intrinsically safe and standard conventional detection and
alarm devices cannot be wired onto a BiWire zone.
For zones configured in Conventional mode the zone is wired
for Conventional detection (detectors and call points) devices
only and must be terminated with an EOLM-1 or EOLM-3
embedded in the last device. Intrinsically safe conventional and
BiWire detection and alarm devices cannot be wired onto a
conventional zone.
For zones configured in Intrinsically Safe Conventional mode
the zone is wired into the MTL5561 intrinsically safe barrier
and all Intrinsically Safe Conventional detection (detectors
and call points) devices are wired into the barrier with a 5K1
EOLR embedded in the last device. Standard conventional and
BiWire detection and alarm devices cannot be wired onto an
intrinsically safe conventional zone.
Figure 5. BiWire Flexi System Wiring Diagram
For sounder outputs used with standard conventional alarm
(wall/base sounders, VADs and I/Os) devices the circuit must
be terminated with 6K8 EOLR embedded in the last device.
Intrinsically safe alarm devices cannot be mixed with standard
conventional alarm devices as an intrinsically safe barrier must
be used (see below). BiWire alarm devices cannot be wired to
a conventional sounder output.
For sounder outputs used with Intrinsically Safe alarm devices
the circuit must be wired into the MTL7778ac intrinsically safe
barrier and all Intrinsically Safe Conventional alarm (wall/base
sounders, VADs and I/Os) devices are wired into the barrier
with a 6K8 EOLR embedded in the last device. Standard
conventional alarm devices cannot be mixed with intrinsically
safe alarm devices. BiWire alarm devices cannot be wired to a
conventional sounder output.
For zones configured as Standard or Conventional mode the
zone can be wired for detection (detectors and call points)
devices terminated with an EOLM-1 and alarm (wall/ base
sounders, VADs and I/Os) devices on separate circuits.
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