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EXP-INTF (Expansion Interface Circuit Pack)
Issue 1 May 2002
8-793
555-233-143
Expansion Interface 2-Way Transmission
Test (#241)
This test is nondestructive. The EI 2-way transmission test is a basic connectivity
test between two PNs. The test first sends dialtone from the cabinet of the EI
circuit pack under test through the Center Stage Switch, through the DS1 CONV
circuit packs, and through another EI circuit pack to a tone detector in the other
cabinet. The connections are then reversed and the tone is passed in the
opposite direction. If the system is equipped with a Center Stage Switch, and this
test either fails or aborts with the above connection, a second PN is chosen (if one
is available and the EI circuit pack is In-Service) and the same test is run on this
new connection. This helps in the isolation of the fault. Since two EI circuit packs
are involved in the connection, either one of them could be at fault and this
repeated test can help determine which one is actually at fault.
The path used in this test is represented in
.
Figure 8-40.
Two-Way Circuit Switch Transmission Test
Clock
Clock
Tone
Tone
Tone
Tone
TDM BUS (PN Y)
TDM BUS (PN X)
CSS
(Optional)
EXP-INTF
EXP-INTF
Detector
Detector
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 ...