21.15 Zone attributes
The zone attributes on the SPC system determine the manner in which the programmed zone types
function. For more information on how to change the attributes for a zone, see Editing a zone on
page185).
Zone attribute Description
Access When the ‘Access’ attribute on a zone is set, then on opening that zone, an alarm will not be
generated if either the entry or exit timer is running. When the system is full set the Access
attribute is not active and opening the zone will initiate a full alarm. The ‘Access’ attribute is
most often used for PIR sensors located close to an entry/exit zone. It allows the user free
movement within the access area while the entry or exit timer is counting down.
The ‘Access’ attribute is only valid for Alarm zone types.
All connected devices (Bells - Internal and External, Buzzers, Strobe) are activated.
Note: An alarm zone with Access attribute can automatically be changed to an entry/exit zone
in Partset mode if the Partset Access Option is set.
Exclude A If the ‘Exclude A’ attribute on a zone is set, then an alarm will not be generated by that zone
opening while the panel is in the Partset A mode. The ‘Exclude A’ attribute is valid for Alarm
zone type and Entry/Exit zones only.
A FULL alarm is generated if a zone with the EXCLUDE A attribute is opened while the system
is in FULLSET or PARTSET B Mode (Bells - Internal and External, Strobe).
Exclude B When the ‘Exclude B’ attribute is set, the zone opening will not generate an alarm while the
panel is in the Partset B mode. The ‘Exclude B’ attribute is valid for Alarm zone type and E/Exit
zones only.
A FULL alarm is generated if a zone with the EXCLUDE B attribute is opened while the system
is in FULLSET or PARTSET A Mode (Bells - Internal and External, Strobe).
24 Hour If a Zone is assigned the ‘24 Hour’ attribute, then it is active at all times and will cause a full
alarm if opened in any mode. This attribute can only be assigned to the ALARM zone type.
Generates a FULL Alarm in UNSET, SET and PARTSET modes.
Note: The 24 Hour attribute overrides the settings of any of the other attributes for a particular
alarm zone.
Local When the ‘Local’ attribute is set, an alarm generated by a zone opening will not result in the
external reporting of the event. The ‘Local’ attribute is valid for Alarm, E/Exit, Fire, Fire Exit and
Medic zone types.
Unset Local When this attribute is set, an alarm generated by the zone opening when the area is fullset or
partset will be reported in the usual way. However, if the area is unset there will be only a local
alarm i.e keypad buzzer, LED flash and zone display. This attribute is only applicable to Alarm,
Fire and Seismic zones.
Double Knock Use this attribute to deal with troublesome detectors (for example, some detectors may
generate activation signals spuriously, thereby inadvertently trigger alarms on the system).
If the same double knock zone activates twice during the double knock period, then an alarm
is generated. Double knock time is set in seconds (see Timers on page179). Two open
actions within that time period will generate an alarm. All open double knock zones are logged
when the system is armed.
SPC42/52/53/63 – Installation & Configuration Manual Appendix
© Vanderbilt 2023 283 I-200572
08.12.2023