Avaya 9601, User Manual, Page: 173 / 178

GLOSSARY
GL-11
terminating leads The individual wires in a cable.
time-multiplex switch (TMS) The AT&T System 85 or DEFINITY® Generic 2 processor that
controls timing and communications among the system modules.
trunk/aux field
UDM
universal port carrier
VOM
white field
wiring block
workstation
XLBET
zone concept
The section of the main distribution frame (MDF) where cables from
the central office (CO) and from auxiliary equipment termiate for
cross-connection to the switch.
universal data module
A carrier in the port cabinet that accepts all port circuit packs except
for very specialized ones such as the ANN 17B, which is used for
digital service 1 (DS1) links.
voice-only module
The area of the main distribution frame (MDF) where distribution
cables from the intermediate distribution frame (IDF) terminate; the
area of the IDF where distribution cables from the MDF terminate.
The portion of the terminal
office (CO) cables terminate. block on which distribution and central
The location of an employee’s desk and the information outlet (IO)
for the terminals used at that desk.
extra-large building entrance terminal
The approach to designing and constructing large main distribution
frames (MDFs) so that distribution cables and equipment cables,
which must be cross-connected, fall within the same 16-ft section of
the MDF.