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Routine Maintenance Procedures
555-233-123
5-12
Issue 4 May 2002
1. Power down AUDIX and any other circuit pack that might be running an
application (for example, MAPD, TN802 may be running the Internet
trunking application on Windows NT
TM
).
2. Power down the cabinet.
3. Make sure you are wearing a ground strap.
4. Release both latches on the power supply and slide the unit out of the
cabinet.
5. Before replacing the new power supply, ensure that the ring generator slide
switch on the bottom of the unit is set to the appropriate frequency (
):
6. Slide the unit into the slot and ensure that both latches snap closed.
7. Power up the cabinet.
8. Observe that the yellow LED is lit continuously.
9. If the yellow LED flashes, this indicates a power fault. See
‘‘Troubleshooting power units’’
.
Table 5-1.
1217A power supply ring outputs
Frequency
Application
Output voltage
Current
20 Hz. (position as
shipped from vendor)
North America
International
85V AC
0 - 180 mA
25 Hz.
International
72V AC
0 - 180 mA
Содержание Definity SI
Страница 1: ...0DLQWHQDQFH IRU YD D 1 7 6HUYHU 6 Volumes 1 2 and 3 555 233 123 Issue 4 May 2002...
Страница 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Страница 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Страница 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Страница 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
Страница 2763: ...VC DSPPT Issue 4 May 2002 10 1977 555 233 123 Figure 10 107 VC Circuit Pack DSP Port Local TDM Loopback Test...
Страница 2776: ...Maintenance Object Repair Procedures 555 233 123 10 1990 Issue 4 May 2002 Figure 10 109 VC Circuit Pack Summer Port Loopback Test...
Страница 2804: ...Maintenance Object Repair Procedures 555 233 123 10 2018 Issue 4 May 2002...
Страница 2968: ...Index 555 233 123 IN 10 Issue 4 May 2002...