User manual
DEFINITY ECS Release 8.2 Maintenance for R8.2csi 
555-233-119  Issue 1
April 2000
 Maintenance Objects
3-1144TONE-PT (Tone Generator) 
3
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 3-502. TEST #40 Tone Generator Transmission Test — Continued
Error 
Code
Te st 
Result Description/ Recommendation
Continued on next page










