Eaton BiWire Flexi - Control Panel Inputs and Outputs Explained

EATON BiWire Flexi Installation Manual (PR215-216-520-03 15-03-16, PINSTFLEXIINST) March 2016 www.eaton.com 9
Figure 5: System Wiring Diagram
BiWire
Zone
2.6 System Wiring
The BiWire Flexi Fire Detection & Alarm System
Conventional
Zone
Intrinsically
Safe Zone
Conventional
Sounder Circuit
Intrinsically Safe
Sounder Circuit
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.
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, as
illustrated below.
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