Ericsson LBI-39224 - Manual (Page 320)

LBI-39224
G-8
NIM
Network Interface Module – Two or more IMC networks can be
linked together for distributed multisite communications using a NIM
at each IMC Digital Audio Switch. NIMs can also link a remote
CEC to an IMC for remote console applications.
NOVRAM
NOnVolatile Random Access Memory – NOVRAM is specialized
RAM used on the certain CEC/IMC boards/cards for storage of data
which must be maintained through a power on-off-on cycle such as
LID and GID databases, and configurations specific to the particular
CEC/IMC interface module.
NOVRAM clear
A NOVRAM clear occurs when interface module specific data
within a Controller Board's NOVRAM is deleted. NOVRAM must
be cleared prior to certain configuration and diagnostic procedures.
NOVRAM reset
(See NOVRAM clear.)
patch
The term "patch" refers to the operation performed when two or
more entities are connected together for common communication as
one entity.
patch ("soft"/console)
A patch ("soft" or console) is when two or more talk groups are
connected together by a dispatcher at a console, this allows the
patched groups to communicate as a single group. "Soft" or console
patches utilize a special group ID number referred to as a SAID.
(Also see Causeway patch and Call Director patch.)
PCM
Pulse Code Modulation – An audio processing technique used to
encode and decode analog signals so they can be transferred digitally.
PIM
Private Branch eXchange (PBX) Interface Module – This CEC/IMC
interface module supports Jessica PBX Gateway equipment. It
provides the audio and control data links into and out of the
CEC/IMC to and from Jessica. (Also see Jessica PBX Gateway.)