Ericsson LBI-39224 manual Cec, Cim, Cni

LBI-39224

CEC

Console Electronics Controller – The CEC is an advanced radio communications controller incorporating time division multiplex digital audio switching technology. The CEC connects dispatch consoles to EDACS and CNI systems.

CEC/IMC Manager

The CEC/IMC Manager (formerly referred to as the "MOM PC") provides CEC/IMC monitoring and configuration functions. This IBM PC compatible computer running custom software developed by Ericsson is the window into the CEC/IMC for the system administrator and service technicians.

CI Board

Conventional Interface Board – This board is located in the CIA secondary interface rack. It contains circuitry used to connect conventional tone and DC controlled base stations and voting systems to the CEC/IMC switch.

CIA rack

Conventional Interface Adapter rack – The CIA rack allows conventional tone and DC controlled base stations and voting systems to be connected to the CEC/IMC. It is considered a "secondary interface" since it does not have direct TDM and GSC bus connections to the primary CEC/IMC interface modules.

CIM

Console Interface Module – The CIM is a CEC/IMC interface module used to connect C3 Maestro (CRT-type) and C3 Modular/Desktop consoles to the CEC/IMC. A CIM consists of a Controller Board and an Audio Board. A C3 Modular/Desktop console also requires a C3 Console Translator interface module. (See

XLTR.)

CNI

Conventional Network Interface – A conventional base station can be connected to the CEC/IMC by a CNI. The CNI is formed by a GETC shelf located at the conventional station that makes the conventional station appear to a MIM as an EDACS trunked site. In the CNI system, different Channel Guard tones are assigned to different talk groups.

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.

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