Clearing Mg 1000T Faults - Nortel 1000E Maintenance Manual

Page 86 of 162 Clearing faults

Clearing MG 1000T faults

553-3041-500 Standard 1.00
The MG 1000T platform provides the interface between network switching
and digital trunks. MG 1000T faults can disable network equipment.
An OVD message indicates a network loop is disabled and all connections on
the loop are disabled. The network loop number corresponds to a specific card
number in the MG 1000T (see "MG 1000E and MG 1000E Expander card
slot assignment" on
that one or more cards are defective or disabled without producing an OVD
message. In either case, look up all system messages in Software Input/
Output: System Messages (553-3001-411) and follow the instructions given.
Manual continuity tests can be used to isolate faults. See LD 30 in Software
Input/Output: Maintenance (553-3001-511) for details on performing the
tests.
If the fault does not clear, or if call processing has stopped on the MG 1000T,
you may need to replace the following equipment:
• NTDK20 SSC card
— NTTK25 Software Daughterboard
— NTDK99 single-port 100BaseT IP Daughterboard
— NTDK83 dual-port 100BaseT IP Daughterboard
• NTDU0606 100BaseT cable used to connect the NTDK99 IP
daugtherboard to the bulkhead connectors
• NTTK34 UTP 100BaseT CAT5 Cross-over cables
• NTDU14 Media Gateway
• NTDU15 Expander
• NTDK95 Expander cables
• NTVQ01 Media Card
September 2004
page 106 for details). System messages can also indicate