Document Conventions; Fx-Mns-6000 Fire And Audio Expansion System Layout - Mircom FLeXNet FX-MNS-6000 Installation And Operation Manual

1.2

Document Conventions

1.2.1 Circuits and Zones
The term circuits refers to an actual electrical interface, initiating (detection), indicating
(signal), or relay.
The term zone is a logical concept for a fire alarm protected area, and will consist of at least
one circuit.
Often the terms zone and circuit are used interchangeably, but in this manual the term circuit
is used.
™
On the FleX-Net
outputs. Both hardwired inputs and outputs, and addressable inputs and outputs may be
grouped together to form logical zones.
1.2.2 Wiring Styles
Initiating circuits are configured by default as Class B. They may be configured as Class A
as described in System Configuration. This operation uses odd and even pairs of two-wire
Class B circuits to make one four-wire Class A circuit, thus cutting in half the number of
available initiating circuits.
Indicating circuits (NACs) may be individually wired as Class A or Class B without affecting
the number of circuits available.
Addressable Loops may be configured system wide as Class B or Class A. With the addition
of isolators, a Class A will become a Class X.
1.3

FX-MNS-6000 Fire and Audio Expansion System Layout

Figure 1 shows a typical FX-MNS-6000 system layout with the main lobby control panel as
Node 1 and the combination of fire and audio systems as Node 2 and 3. The diagram also
shows addressable fire alarm loops, paging and telephone connections and QBB-6001
extension audio cabinets.
, circuits can be hardwired inputs and outputs or addressable inputs and
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