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TONE-BD (Tone-Clock Circuit)
Issue 1 June 2005 2347
4. If the error has not been corrected at this point, there is a problem with the TDM bus
within the port network containing the reported Tone-Clock circuit. This may include TDM
bus intercarrier cables, bus terminators, bent pins on the backplane, and errors on any
circuit pack plugged into the same port network. See TDM-BUS (TDM Bus)
on
page 2237.
m. Error Type 2561: 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, see Replacing the IPSI or Tone-Clock Circuit Pack
on page 2337 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:
n. Error Type 3329: the system attempted but failed to interchange IPSI or 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 to 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.
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. Look for EXP-LNK entries in the
hardware error log for PNC interchanges, which would affect the EXP-INTF.
3. If the t/c selector has not undergone an interchange since the error occurred, go to the
next step. If such an interchange has taken place, interchange back to the formerly active
t/c selector. Use set expansion-interface. If the interchange attempt fails due to
other errors, resolve those problems first.
1002 A TN756 Tone-Clock circuit pack (instead of a TN2312) is in a standard- or
duplex-reliability system’s PN.
1003 Either a TN741, TN714, TN768, TN780, or TN2182 Tone-Clock circuit pack
(instead of a TN2312 IPSI) is in a standard- or duplex-reliability system’s
PN.
1004 Either a TN741 or TN714 Tone-Clock circuit pack (instead of a TN768,
TN780, TN2182, or TN2312) is in a high- or critical-reliability system’s PN.
1005 Same as for aux value 1004.