Maintenance Object Repair Procedures
555-233-123
10-1810 Issue 4 May 2002
Notes:
Except in Port Networks containing more than one Tone-Clock circuit pack,
replacing the circuit pack is a service disrupting procedure. The test should be run
several times with more than one failure before the replacement policy specified in
the following notes is executed. Use the procedure described in ‘‘How to Replace
a Tone-Clock Circuit Pack’’ in the TONE-BD section.
a. All the failure error codes marked with (a) may affect users if the failure is
on the active tone generator. When this type failure is detected, the system
will attempt to move the tone generation function to the alternate
Tone-Clock circuit pack, if one is present in the affected Port Network.
When the tone generation facility fails in this way, especially in a Port
Network without duplicated Tone-Clock circuit packs, the faulty Tone-Clock
should be replaced promptly.
b. All the failure error codes marked with (b) are almost transparent to the
user. Again, when this type failure is detected, the system will attempt to
move the tone generation function to the alternate Tone-Clock circuit pack,
if one is present in the affected Port Network. Users may or may not hear
any noisy tones. This type of failure affects maintenance on other objects.
Maintenance may not be able to run on other objects which use the tone
generation facility (that is, Tone Detector Circuit Pack maintenance). In this
case, the Tone-Clock circuit pack can be replaced as suitable to the
customer.
c. Error code 115 may also be caused by TDM Bus corruption. This normally
means a physical problem with bent backplane pins, TDM/LAN Bus
cabling, or TDM/LAN Bus terminators. Such physical problems should
especially be suspected if board replacement or other physical activity has
occurred just before this error is observed.
1045 (a) FAIL DTMF generation failed to generate Digit 5 for the standby
tone generator.
1046 (a) FAIL DTMF generation failed to generate Digit 9 for the standby
tone generator.
1047 (a) FAIL DTMF generation failed to generate Digit D for the standby
tone generator.
PASS The tone generation facility is able to generate and transmit all
the tones.
Table 10-657. TEST #40 Tone Generator Transmission Test — Continued
Error
Code
Te s t
Result Description/Recommendation
Continued on next page
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