Detectors/Devices Menu
Page 30
In a system with partitions, the behaviour of a Shunt Key Latching zone is limited by
the partitions that the zone belongs to as follows:
If the zone is allocated to one or more partitions, then when a user activates the
zone, the control unit shunts only zones with the Shuntable attribute in the same
partition(s) as the Shunt Key Latching zone.
If the Shunt Key Latching zone is connected to the control unit and not assigned
to a partition, it will affect only zones with the Shuntable attribute connected to the
control unit.
For other ways of shunting zones see Shunt Groups on page 68.
Shunt Key Non-Latch SKNL (20)
This carries out the same function as a Shunt Key Latching, but differs in the method
of restoring shunted zones. The control unit changes the shunted/restored state of
zones each time a user activates a Shunt Key Non-Latch zone.
Lock Set LS (21)
Use this zone type to complete setting when the system or partition exit mode is Lock
Set (see page 50). This zone type is designed for a normally-open switch (one that is
open when the lock is locked). Note that this zone type is armed during setting and
when the system is set.
A Lock Set zone can take the Inverted attribute.
Do not use Lock Set with a part set; the results may not function as described.
Occupancy OC (22)
This zone type is intended for use with access control systems. If the zone is active
when a user tries to set the system, the display shows
“Tick to continue Occupancy
zone active”. By pressing
, the user can carry on to set the system and the control
unit logs the event. In a partition-based system, an Occupancy zone can be allocated
to a partition.
Security SC (23)
This zone type is intended for use if the control unit or one-way keypads are located
in areas that are accessible to non-authorised people while the system is unset.
When a Security zone is active, the control unit disables the buttons on all keypads.
The display and proximity tag sensor continue to function normally.
If an authorised user presents a proximity tag, the control unit activates the keys so
that the user can operate the system. The control unit deactivates the keys when that
user is finished.
The keypad buttons will work normally when the system is set.
In a partition-based system, you can allocate a Security zone to any partition. When
activated, the control unit disables buttons on keypads in the same partition(s) as the
Security zone.
Tamper Return TR (24)
This zone type makes it possible to monitor a tamper return wire from an external
wired siren. The control unit monitors a Tamper Return zone at all times.
When triggered in the unset condition, only internal sounders operate. When
triggered in the set condition, the alarm response determines whether external
sirens, strobe and communications also respond to the alarm.
This zone type is not available for radio zones.