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Bosch Security Systems | 2011-02
2011-02 | Installation and User Instructions | 2 | Introduction en | 80
4Glossary
A
B
C
D
E
G
L
M
N
P
A/D
Analog-to-digital converter.
AEX
Audio expander.
AVC
Automatic volume control. This improves the
intelligibility of calls by adjusting the volume of a call
related to the measured ambient noise.
BAM
Basic amplifier.
BGM
Background music.
CST
Call station.
D/A
Digital-to-analog converter.
DCN NG
Digital Congress System Next Generation. Digital
congress system of Bosch Security Systems.
DSP
Digital signal processor.
ESD
Electrostatic discharge. This might damage electronic
components.
GOF
Glass optical fiber. Type of fiber that is used to cover
distances > 50 m in the Praesideo network.
LCD
Liquid crystal display. Type of display.
LED
Light emitting diode. Electronic component frequently
used as indicator.
LSP
Loudspeaker.
LSZH
Low smoke, zero halogen.
MAC address
Media access control address. Unique hardware
address.
MCI
Multi channel interface
MTBF
Mean-time-between-failures.
NCO
Network controller.
NC
Normally closed. Control output behavior. When the
output is activated, the NC contact is opened.
NO
Normally open. Control output behavior. When the
output is activated, the NO contact is closed.
PAM
Power amplifier.
PCB
Printed circuit board.
POF
Plastic optical fiber. Type of fiber that is used to cover
distances < 50 m in the Praesideo network.
PTT key
Press-to-talk key. A key to start a call with a
predefined priority based on a call macro that will be
addressed to one or more predefined zones or zone
groups.