Maintenance-Object Repair Procedures
555-233-143
8-1698
Issue 1 May 2002
TTR-LEV (TTR Level)
TN748 and TN420 Tone Detector circuit packs and TN744 Call Classifier circuit
packs provide tone receivers for detecting various types of signaling tones. These
circuit packs are shared resources that serve every user of the PBX. This
discussion uses the following terms and abbreviations (note that the
maintenance-related system parameters form uses different names than the
alarm and error logs):
TN748s and TN420s each have 4 DTMR-PTs and 2 GPTD-PTs. DTMR-PTs
interpret dual-tone multifrequency (DTMF) calling signals and translate them into
logical digits 0 through 9, *, and #. GPTD-PTs detect call-progress tones, modem
answer tones, and transmission test tones.
TN744 Call Classifier circuit packs have 8 CLSFY-PTs. These ports detect DTMF
tones and classify network and MFC (multifrequency compelled) signaling tones.
(That is, CLSFY-PTs can function as DTMR-PTs or GPTD-PTs, and have other
additional capacities).
MO’s Name (in
Alarm Log)
Alarm
Level
Initial Command to Run
Full Name of MO
TTR-LEV
WARNING
1
1.
See Repair Procedure for the TTR-LEV below.
TTR Level
TTR-LEV
MINOR
TTR Level
TTR-LEV
MAJOR
TTR Level
Type of Tone
Receiver
MO
Also Known
As
Alternate
Abbreviation
Location
Dual-Tone
Multifrequency
Tone Receiver
DTMR-PT
Touch-Tone
Receiver
TTR
4 per
TN420/TN748
General-Purpose
Tone Detector
GPTD-PT
Call-Progress
Tone Receiver
CPTR
2 per
TN420/TN748
Call Classifier
CLSFY-PT
CCTR
8 per TN744
Содержание S8700 Series
Страница 50: ...Maintenance Architecture 555 233 143 1 26 Issue 1 May 2002 ...
Страница 74: ...Initialization and Recovery 555 233 143 3 12 Issue 1 May 2002 ...
Страница 186: ...Alarms Errors and Troubleshooting 555 233 143 4 112 Issue 1 May 2002 ...
Страница 232: ...Additional Maintenance Procedures 555 233 143 5 46 Issue 1 May 2002 ...
Страница 635: ...status psa Issue 1 May 2002 7 379 555 233 143 status psa See status tti on page 7 406 ...
Страница 722: ...Maintenance Commands 555 233 143 7 466 Issue 1 May 2002 ...
Страница 1121: ...CARR POW Carrier Power Supply Issue 1 May 2002 8 399 555 233 143 Figure 8 19 Power Distribution Unit J58890CH 1 ...
Страница 1447: ...E DIG RES TN800 reserve slot Issue 1 May 2002 8 725 555 233 143 E DIG RES TN800 reserve slot See ASAI RES ...
Страница 1735: ...LGATE AJ Issue 1 May 2002 8 1013 555 233 143 LGATE AJ See BRI SET LGATE BD See BRI BD LGATE PT See BRI PT ...
Страница 1846: ...Maintenance Object Repair Procedures 555 233 143 8 1124 Issue 1 May 2002 Figure 8 62 TN787 MMI MULTIMEDIA INTERFACE CIRCUIT PACK ...