Bosch Appliances 3.5 manual 4Glossary

2011-02 Installation and User Instructions 2 Introduction

en 80

4Glossary

A

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.

B

BAM

Basic amplifier.

BGM

Background music.

C

CST

Call station.

D

D/A

Digital-to-analog converter.

DCN NG

Digital Congress System Next Generation. Digital congress system of Bosch Security Systems.

DSP

Digital signal processor.

E

ESD

Electrostatic discharge. This might damage electronic components.

G

GOF

Glass optical fiber. Type of fiber that is used to cover distances > 50 m in the Praesideo network.

L

LCD

Liquid crystal display. Type of display.

LED

Light emitting diode. Electronic component frequently used as indicator.

LSP

Loudspeaker.

LSZH

Low smoke, zero halogen.

M

MAC address

Media access control address. Unique hardware address.

MCI

Multi channel interface

MTBF

Mean-time-between-failures.

N

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.

P

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.

Bosch Security Systems 2011-02