Verilink WANsuite 5230 (34-00304.F) Product Manual - Manual (Page 221)

S p e c i f i c a t i o n s 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