Maintenance Objects
1734
Issue 5 October 2002
Notes:
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) will affect users. When the tone
generation facility fails, replace the faulty Tone-Clock promptly.
b. All the failure error codes marked with (b) are almost transparent to the
user. Users may or may not hear any noisy tones. This type of failure
affects other MOs. 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.
Use display errors to look for errors on other circuit packs in the carriers of
the same Port Network as the Tone-Clock. If any are found, they should be
resolved if possible, and the Tone-Clock circuit pack retested. If this does
not clear the problem, the Tone-Clock circuit pack should be replaced and
the new one tested. If the problem persists, follow instructions for TDM Bus
maintenance in this manual.
111 (b)
FAIL
Generation of 1004-Hz low level invalid.
112 (b)
FAIL
Generation of 1004-Hz high level invalid.
113 (b)
FAIL
Generation of 2804-Hz level invalid.
115 (b,c)
FAIL
Generation of digital count sequence invalid.
120 (a)
FAIL
Generation of quiet tone failed.
1044 (a)
FAIL
DTMF generation failed to generate Digit 1 for the standby tone generator.
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 513.
TEST #40 Tone Generator Transmission Test —
Continued
Error
Code
Test
Result
Description/ Recommendation
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