DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1104M/T-BD (Maintenance/Test Circuit Pack)
9
M/T-BD (Maintenance/Test Circuit
Pack)
The Maintenance/Test Circuit Pack supports Packet Bus fault d etection and bus
reconfiguration for the port network in which it is installed. The circ uit pack also
provides Analog Trunk testing, and data loopback testing of DCP Mode 2
endpoints and Dig ital (ISDN) Trunk Facilities via the TDM bus.
Port 1 of the Maintenance/Test board is the Analog Test port which provides the
Analog Trunk testing function for Automatic Transmission Measurement System
(ATMS). ATMS is a feature in which calls are made from a devic e called an
Originating Test Line (OTL) over a specific trunk to a devic e called a Terminating
Test Line (TTL). The OTL and TTL can then send tones over the trunk under test
and determine the qual ity of the connection. Ports 2 and 3 are the Di gital ports
which provide the Dig ital (ISDN) Trunk testing functions. Port 4 is the Packet port
which provides the Packet Bus m aintenance function.
Refer to XXX-BD (Common Port Circuit Pack) Maintenance documentation for
circuit pack lev el errors. See also M/T-ANA (Maintenance/Test Analog Test Port),
M/T-DIG (Maintenance/Test Digital Port) and M/T-PKT (Maintenance/Test Packet
Bus Port) Maintenance documentati on for related analog test port d igital port
and Packet Bus port inform ation, respectively.
All ports except the Analog port (port 1) of the Maintenance/Test Board are
automatically administered wh en the circuit pac k is inserted into the system and
they are removed when the circuit p ack is unplugg ed from the system. The
Analog port however, is ad ministered via the station screen with the type "105TL"
for an OTL or a TTL. This port remains administered even after the circ uit pack is
physically removed from the syste m. Care should be taken to remove the OTL or
the TTL before unplugging the c ircuit pack.
MO Name As
It Appears in
Alarm Log Alarm
Level
Initial System
Technician Command
to Run1
1. UU is the universal cabinet number (1 for PPN, 2 - 44 for EPNs). C is the carrier designation (A,
B, C, D, or E). SS is the number of the slot in which the circuit pack resides (01 to 21).
Full Name of MO
M/T-BD MIN test board UUCSS l Maintenance/Test Circuit Pack
M/T-BD WRN release board UUCSS Maintenance/Test Circuit Pack