User Guide
DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si 
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures 
Page 10-1509TONE-PT (Tone Generator) 
10
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.
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 10-450. TEST #40 Tone Generator Transmission Test — Continued
Error 
Code
Test 
Result Description/ Recommendation
Continued on next page










