Glossary - Bosch Plena Installation And User Instruction Manual

Plena Voice Alarm System | Installation and User Instructions | Glossary
9

Glossary

A
Acknowledge
Faults and EMG triggers should first be manually
acknowledged before they can be reset. The Fault/
EMG Acknowledge buttons are located on the front of
the controller.
Alarm message
A prerecorded digital alarm message can be
broadcast to one or more zones or zone groups.
Alert message
A prerecorded digital alert message can be broadcast
to one or more zones or zone groups.
APR
Asian Pacific Region. In APR mode the controller is
configured to operate in the Asian Pacific Region, and
as such, adapted to the local emergency standards.
AUX
Instead of a CD/Tuner, an auxiliary audio input can be
connected to the controller.
B
BGM
Background Music (CD/Tuner/AUX) can be
broadcast to all zones, or only to a selected number of
zones (or zone groups).
Booster
The controller is equipped with a 240 W internal
booster, which can be used in 1- or 2-channel mode.
In 2-channel mode, an external booster is required. In
1-channel mode, an external booster may optionally
be connected to function as a spare booster.
Business call
Live announcement that is made when the system is in
the normal state. Business calls can be made from a
call station (LBB1956/00).
C
Calibration
If supervision is enabled, the controller measures at
regular intervals, the impedance of the loudspeaker
lines. The measured values are compared with the
reference calibration values. Calibration values can be
measured and stored by pressing the Calibration
button on the back of the controller.
Bosch Security Systems | 2004-06 | 9922 141 10381en
CAN
Protocol used for serial communications between the
controller, the call stations, the routers and the RCPs.
CAT-5
A category-5 cable is designed to have a nominal
characteristic impedance of 100 Ohms. Each twisted
cable pair in the cable, is twisted 5 times per inch. The
cable allows for high-speed data transmissions.
1/2-Channel mode
In 1-channel mode, the internal booster amplifies calls
and BGM. In 2-channel mode, the internal booster
amplifies the BGM. Calls are amplified by an external
booster.
Chime
A chime is a prerecorded message. Pre- and/or post
chimes can be added to live spoken messages or to
emergency messages.
Call station
A call station is used to make business calls. At
maximum 8 call stations can be directly connected to
the controller.
D
dB
A logarithmic unit of sound intensity.
DC
Direct Current or constant voltage source.
E
Emergency call
Emergency calls can only be distributed in the
emergency state, using the emergency microphone.
This emergency state is entered by pressing the red
emergency button on the front of the controller.
EMG
Emergency. The Plena Voice Alarm System conforms
to the emergency requirements as specified in the
international IEC60849 standard. The emergency
state is entered when the EMG button is pressed or
when an EMG trigger input is activated.
EVAC
Evacuation Voice Alarm Controller.
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