Avaya 6424D+M User Manual page 169

installation cable
integrated services digital
network (ISDN)
intermediate distribution
field (IDF)
ISDN
jumper
wire
main distribution frame
(MDF)
modular processor data
module (MPDM)
modular trunk data module
(MTDM)
module
Usually a four-pair cable that connects an information outlet (IO) to
an intermediate distribution frame (IDF). It is also known as gray
cable or horizontal wiring.
An end-to-end digital network that supports a wide array of voice and
data services.
A cross-connect field where the distribution cables from the main
distribution field (MDF) arc cross-connected to the installation cables
from the information outlets (IOs). The IDF is usually located in a
satellite closet. It can be wall mounted or frame mounted depending
on the size and special needs of the installation. Also a generic term
for other than MDF cross-connect fields.
integrated services digital network
A twisted-pair wire in 24 or 26 gauge used with a special tool to
cross-connect cables terminated on the main distribution frame
(MDF) and intermediate distribution (IDFs).
The cross-connect field where cables from the central office (CO) are
cross-connected to the switch and where port cables from the switch
are cross-connected to the distribution cables. This is the largest
cross-connect field of the installation and is located in the equipment
room.
A multipurpose data module that can be set up to convert any one of
several protocols to digital communications protocol (DCP) for
automatic or off-premises data calls.
A multipurpose data module used to convert RS232C protocol to
digital communications protocol (DCP). It is used for modem
pooling, private line trunks, switched networks, and off-premises
data-only extensions.
A group of AT&T system 85 or DEFINITY™ Gencric 2 switch ports
and the processor used to control them. The ports are located in the
port cabinets and the processor, called the module control (MC), is
located in the MC cabinet. Each module can have up to 1536 ports.
GL-7
GLOSSARY