Document: LT0439 Vigilant
MX1-Au
Operator Manual
Issue 1.73
23 October 2018
Page 1-15
248
– Distributed Switch System (DSS) for AS 1668 fan controls.
Points for each control are not provided.
In the absence of any other information, a point can be found by entering
the first point in the particular equipment part (for example, entering 241
will bring up the first point on the controller board), and stepping through
the list of points with
NEXT
. The information displayed will assist in
identifying the desired point. For example;
Fig 1-3 – Example of Point Display
A zone is a search area of a building or facility protected by the
MX1
fire
alarm system. The limits of a zone are defined in AS 1670.1. The zone
description is used by fire-fighters to quickly locate and respond to
alarms.
A zone represents one or more devices located within the zone area, and
the
MX1
combines the states of the points representing these devices to
produce a common zone status indication for use by fire-fighters and
other emergency personnel.
A zone can have one or more of the following states:
Normal
– this is the usual zone state, when all field devices are
operating normally, no tests are in progress and no other state is
present.
Pre-alarm
– a detector mapped to the zone has gone into the pre-
alarm state.
FirstAlrm
– for an AIF or AAF zone (or dual-hit zone). A device in
the zone is in alarm, but the zone itself is not yet in alarm.
Alarm
– a device mapped to the zone has activated. Generally,
this calls the fire brigade.
Resetting
– the zone is being reset.
Operate
– output points mapped to the zone will be operated.
Fault
– a device mapped to the zone is in the Fault state, or
Device Fail or Type Mismatch.
Disabled
– the zone itself has been disabled by the operator to
prevent it from affecting system operation.
Note
that disabling all
points that map to the zone will automatically disable the zone as
well. In this case, at least one point must be enabled to allow the
zone to be enabled.
Test Operate
– all outputs mapped to the zone will be operated
for testing purposes.
Auto-Reset
–the zone is in Auto-Reset test mode.
Zones
P
1
.
1
.
0
MIM
800
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