Ericsson LBI-39169 manual Glossary, Term Definition

LBI-39169 GLOSSARY

16. GLOSSARY

TERM		DEFINITION
ACU	Alarm and Control Unit.	The ACU provides 32 alarm inputs and 8 relay
	outputs and allows for external device alarming to the System Manager. The
	ACU and Test Unit (TU) form the Test and Alarm Unit (TAU).
Administrator (or Admin or	Administrators are those people responsible for centralized configuration of
EDACS Administrator)	EDACS networks. Their	role is to install and maintain the system-wide
	database, and in the case of Network Management, overview the operation of
	the network.
Aegis™	Aegis™ is the Ericsson GE's voice scrambling system that employs advanced
	Digital Signal Processing (DSP) circuitry. Aegis has two primary modes −
	"Aegis digital" and "Aegis private". Aegis digital mode offers improved weak
	signal performance and impedance to unauthorized monitoring. Aegis digital
	transmissions are not encrypted. Aegis private mode also offers improved weak
	signal performance. In addition, since Aegis private transmissions are
	encrypted, Aegis private mode provides very secure communications against
	unauthorized monitoring.
Agent	Software that enables a device to respond to manager requests to view or
	update MIB data, and send traps reporting problems to significant events.
AMTS	Advanced Multisite Test System.
API	Application Programming	Interface.	Standard interface to a software
	application.
Audio Board	The Audio Board routes audio, mobile data and Aegis data between EDACS
	radio systems, dispatch consoles, logging recorders, etc. The board digitizes
	analog signals applied to its audio inputs and applies the digitized signals to
	the TDM bus. It also performs the reverse process for its audio outputs.
AUI	Attachment Unit Interface.	Connector	used with thick Ethernet that often
	includes a drop cable.
Battery-backup	Holds information in RAM until power is restored or battery is drained.
BCU	EDACS Billing Correlation Unit. This EDACS unit converts Integrated
	Multisite Controller activity to Call Detail Records which can be used for
	billing.
Bridge	Used to connect Ethernet to Ethernet with capability to control two-way traffic.
	OSI data Link and Physical layers only.
C3 Maestro	The C3 Maestro is the CRT-type console that is designed to take advantage of
	the advanced features of EDACS. It consists of a specialized audio "tower"
	and an IBM PC compatible computer running custom software developed by
	Ericsson GE.
CAL	Centralized Activity Logger. This EDACS unit is inserted between the IMC
	and the System Manager to provide activity information from Basic EDACS,

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