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DEFINITY ECS Release 8.2 ATM Installation,
Upgrades, and Administration
555-233-124
Issue 1
April 2000
Troubleshooting
6-28Troubleshooting ATM-PNC
6
ATM signaling links
Figure 6-2 shows the signaling links in an ATM-PNC configuration.
Figure 6-2. ATM signaling links
Figure Notes
1. DEFINITY ECS switch PPN/EPN
2. Telephones
3. ATM switch
4. Constant bit rate switched virtual
connection (CBR-SVC)
5. PNC ATM control link (PACL)
6. Expansion archangel link (EAL)
7. ATM signaling
PPN
1
2
4
5
6
cydarout LJK 020100
EPN 2
EPN 1
2
2
1
1
7
3