
Specifications A-3
Figure A.1
Line Loopback (LLB) and Maintenance Loopback (MLB)
Figure A.2
Port Loop and V.54 Loopback
Line Loopback (LLB)
Internal Logic
Serial #1
Serial #2
+
WANsuite 5260/5230
Network
Network
Framer
Looped
Internal Logic
Serial #1
Serial #2
Maintenance Loopback (MLB)
Network
AIS
X
+
WANsuite 5260/5230
DTE
Equipment
Network
Framer
Looped
Network
Framer
Looped
DTE
Equipment
DTE
Equipment
DTE
Equipment
WANsuite 5260/5230
Network
Internal Logic
Network
Framer
Port Under
Test
Looped
DTE
Equipment
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