Network Equipment Faults - Nortel Meridian 1 Manual

Page 94 of 190 Clearing network equipment faults

Network equipment faults

Network equipment in the Meridian 1 provides speech path switching and
transmits and receives signaling messages from the CPU. Network equipment
can include:
— conference/tone and digit switch (CONF/TDS) card: provides
— intergroup switch (IGS) card: provides speech path switching between
— network card: provides digital switching for the system
— peripheral signaling (PS) card: provides the signaling interface to the
— serial data interface (SDI) card: provides the interface from the CPU to
Network equipment faults can cause system initializations and disable
conference capability or all terminal connections (such as trunks and
telephones) on a loop. Defective network equipment can make functional
peripheral equipment seem faulty.
553-3001-510 Standard 11.00 June 1999
conference capability, all tones for the system, and multifrequency
sender (MFS) functionality
network groups for options 71, 81, and 81C
Note 1: The NT8D04 Superloop Network Card provides the equivalent
of four network loops. The NT1P61 Fibre Superloop Network card and
the NT7R51 Local Carrier Interface card provide the equivalent of two
network loops.
Note 2: The NT8D18 Network/Digitone Receiver (DTR) Card provides
the digital switching and MFS functionality, for options 21A, 21, and
21E.
CPU and clocking
Note: The NT8D19 Memory/Peripheral Signaling Card combines the
functionality of memory and peripheral signaling cards, as well as
miscellaneous CPU functions, for options 21A and 21. The NTND02
Misc/SDI/Peripheral Signaling Card combines the functionality of
peripheral signaling and SDI cards, as well as miscellaneous CPU
functions.
an input/output (I/O) device