Maintenance Object Repair Procedures
555-233-123
10-1796 Issue 4 May 2002
l. Error Type 2561This error indicates that a Tone-Clock circuit pack, with
a different circuit pack code as required for this system, has been inserted
in the port slot as shown in the Hardware Error Log. To resolve this error,
refer to the ‘‘How to Replace a Tone-Clock Circuit Pack’’ section for an
appropriate circuit pack code and replace the Tone-Clock circuit pack
according to the procedures indicated for this system. The meanings of the
aux data values are as follows:
m. Error Type 3329
The system attempted but failed to interchange
Tone-Clock circuit packs. (This error occurs only in Port Networks with
duplicated Tone-Clocks.) The fault may lie in the standby Tone-Clock or in
the circuit pack that controls selection of the active Tone-Clock (the t/c
selector). The goal of the following procedure is to ensure that both
Tone-Clocks can be interchanged into while either t/c-selector circuit pack
is active.
1. Examine the Error Log for errors reported against circuit packs in
the same Port Network, paying special attention to TDM-CLK,
TONE-BD, DUPINT, SW-CTL, and EXP-INTF. Follow the
procedures indicated for any such errors found. After eliminating the
above potential problem sources, proceed with the following steps.
2. Determine which circuit pack was controlling the choice of
Tone-Clock at the time the error occurred.
■ For a PPN, the t/c selector is the DUPINT circuit pack on the
A-carrier.
■ For an EPN, the t/c selector is the active EXP-INTF circuit
pack that is connected to the PPN. This is EXP-INTF 2A01 or
2B02 for EPN1 and 3A01 or 3B02 for EPN2.
The t/c-selector circuit pack of interest is the one which was active at
the time the error was logged. An EXP-LNK interchange since the
time of the error may have made that circuit pack the current
standby. Determine whether an interchange affecting the t/c selector
has occurred since the TONE-BD error. When investigation an EPN
Tone-Clock, look for EXP-LNK entries in the hardware error log for
PNC interchanges, which would affect the EXP-INTF.
1001 A TN756 Tone-Clock circuit pack is in the PPN of a one port network
system without High or Critical Reliability (Multicarrier Cabinet).
1002 A TN756 Tone-Clock circuit pack is in the EPN of a one port network
system without High or Critical Reliability (Multicarrier Cabinet).
1003 Either a TN741 or TN714 Tone-Clock circuit pack (instead of a
TN768, TN780 or TN2182) is in a one port network system without
High or Critical Reliability (Multicarrier Cabinet).
1004 Either a TN741 or TN714 Tone-Clock circuit pack (instead of a
TN768, TN780 or TN2182) is in a High or Critical Reliability system.
1005 Same as for aux value 1004.
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