LBI-39169

GLOSSARY

TERM

DEFINITION

CNI

Conventional Network Interface A conventional base station can be

 

connected to the CEC/IMC switch via a CNI. The CNI is formed by a GETC

 

shelf located at the conventional station that makes the station appear to a

 

MIM as an EDACS site. In the CNI system, different Channel Guard tones are

 

assigned to different talk groups.

Community Name

Used like a password in message, validating the right of the sender to access

 

MIB data with a requested operation.

confirmed call

The confirmed call function ensures all EDACS radio systems being called

 

have working channels available before the caller is given a channel access

 

(talk permit) tone. This function can be disabled on a per system/group basis.

Console

Communication equipment which provides an operating position for a

 

dispatcher.

Console Icon

The Console icon consists of equipment, displays, and controls where one

 

operator interfaces with a radio system.

Convert To Callee

The convert to callee message is sent to a radio which attempts to initiate a call

 

within a group which is already assigned a working channel. Upon recept of

 

the message, the radio is prevented from transmitting and is placed in the

 

receive mode on the assigned working channel.

control data

Control data includes any data used by the switch for system control.

CTIM

Centralized Telephone Interconnect Module The CTIM is a CEC/IMC

 

interface module used to connect Centralized Telephone Interconnect System

 

(CTIS) equipment to the switch so radio users and dispatchers can access land-

 

line telephone systems.

DATA

(see EDG interface module)

daemon

Background process that performs system-wide functions.

distributed multisite

Two or more IMC networks can be linked together for distributed multisite

 

communication. Audio, mobile data/Aegis data and control data is transferred

 

between the different IMC networks via a NIM at each IMC switch. (Also see

 

StarGate Controller.)

DPRAM

Dual Port Random Access Memory These specialized memory chips have

 

two separate data buses that allow two microprocessor chips to quickly and

 

efficiently transfer data between each other.

DVIM

Digital Voice Interface Module The DVIM is a CEC/IMC interface module

 

that connects Digital Voice Interface Units (DVIU) to the switch to provide

 

Aegis digital and Aegis private voice operation for dispatch consoles and CTIS

 

equipment.

DVIU

Digital Voice Interface Unit. Provides digital interface to the dispatch console

 

and enables digital mode communications with the console operator.

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Ericsson LBI-39169 manual Cni, Ctim, Data, Dpram, Dvim, Dviu