Calls And Priorities; Priority; Mergeable Messages; Business Call - Bosch Plena Operating Manual

42 en | System overview
3.13

Calls and priorities

As the Plena Voice Alarm System is a public address and emergency sound system, it is used
to distribute background music, business calls and emergency calls.
3.13.1

Priority

To each call, a priority is assigned. When two or more calls are addressed to the same zone or
need shared resources (e.g. the internal message manager of the voice alarm controller), the
call with the lower priority is stopped immediately and the call with the higher priority is
started. The priority of a call depends on the part of the system that started the call and must
be configured with the configuration software.
Notice!
See the Configuration Software Manual for more information about the configuration
software.
When two or more calls with the same priority are addressed to the same zone or need shared
resources (e.g. the internal message manager of the voice alarm controller), the oldest call is
stopped immediately and the youngest call is started. An exception to this rule are mergeable
messages (see section Mergeable messages, page 42).
3.13.2

Mergeable messages

When two or more calls are started that are based on the same mergeable message template
and have the same priority, the calls are merged. The youngest call will not stop the oldest call
in this case. Mergeable message can be created with the configuration software.
3.13.3

Business call

A business call is a call that is made when the system is in the normal state. Business calls
always have a priority between 2 and 8 and can be started with:
–
–
–
3.13.4

Emergency call

An emergency call is a call that is made when the system is in the emergency state. Emergency
calls have a certain priority in the configuration software, and can be started with:
–
–
–
2013.07 | V2.0 |
Business trigger inputs
Call stations
The mic/line input with VOX functionality of the voice alarm controller
Emergency trigger inputs (priority between 2 and 14)
The hand-held emergency microphone of the voice alarm controller (priority between 9
and 19)
The mic/line input with VOX functionality of the voice alarm controller (priority between 2
and 14)
Installation and Operation manual
Plena
Bosch Security Systems B.V.