Avaya S8700 Maintenance Manual page 940

For multi-connect configurations
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Maintenance-Object Repair Procedures
— This test verifies the operation of a large portion of the ATM-EI circuit and
packet paths, but does not verify the optical portion of the lightwave
transceiver. If this test passes, the ATM-EI circuit pack is functioning
correctly, but faults can exist in the lightwave transceiver. If the test fails,
the fault can be on the board. After the test results are reported, the ATM
framer is taken out of loopback.
Packet bus
(PPN)
Packet
interface
Figure 8-6. ATM Board Framer Loop-Around Test (#1260) (non-EAA, Packet Path)
8-218
Issue 1 May 2002
NOTE:
This test can be run on active or standby ATM-EIs, but it is not
allowed if an ATM-EI is the Expansion Archangel.
framer
looped
ATM
circuit
pack
ATM
switch
PNC mode
ATM
circuit
TDM bus
pack
(EPN X)
ATM
PNC mode
ATM
circuit
pack
ATM
expansion
archangel
Packet bus
(EPN X)
PNC mode
Tone clock
Tone detector
iodfpak AWF 040699
555-233-143

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