Autronica BS-320 User's Guide download pdf (Page 26)

Operation Mode

Operator's Handbook, AutroSafe Interactive Fire Alarm System, Release 3, ASAFE-FO/FE Rev. I, 2009-02-27,

Autronica Fire and Security AS

Page 24

3.16.2 Point Disablements

A general rule is that a Point may be disabled by one or more

disablement sources simultaneously. To be enabled, the Point must

be enabled from all these disablement sources.

Example:

A Point is disabled from a Zone (Detection Zone disable command

issued from an Operator Panel) and from a Disable Input Unit. For the

Point to become enabled, a DZ enable command must be issued from

the Operator Panel and the Restore button on the Disable Input Unit

must be pressed.

Exceptions to this general rule is as follows:

• Individual enablements will override and remove all other

disablements but Loop disablements. The reason for this is that an

individual Point disablement should be regarded as a sort of

service command used in exceptional circumstances, disabling of

Points is usually done via its Detection Zone.

• Master Zone enablements will override and remove all Master

Zone, Zone and Disablement Input Unit disablements.

3.16.3 Other Unit Disablements

Other units (than Points) are only affected by Individual and Loop

disablements.

Note that in contrast to Point disablements, there is no memory in the

system in conjunction with Loop disable / enable operations: When a

loop is disabled and then enabled, any disablements which may have

existed before the loop disable will be lost. In other words, all loop

units (except Points which have this memory function, see above) will

be enabled when enabling the corresponding loop.

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Autronica BS-320 User's Guide Page 26