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WinLink1000 Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting
Local External Loopback
Local WinLink1000 can be set to an external loopback to test the local
E1/T1 port and its connection to the local side user equipment. In this
mode, data coming from the local user equipment is looped back to it
(see
Figure
5-8
). This loopback is initiated from a management station
connected to the local unit.
Tes ti ng
Equipment
Management
Station
E1
Interface
/T1
Local ODU
Figure
5-8. Local External Loopback
Remote Internal Loopback
Remote WinLink1000 can be set to an internal loopback to test
connection between the local and remote units, the local E1/T1 port
and its connection to the local side user equipment. In this mode, data
coming from the local WinLink1000 is looped back to it (see
Figure
5-
9
). This loopback is initiated from a management station connected to
the local unit.
Management
Station
E1/T1
Interface
E1
Interface
/T1
Tes ti ng
Equipment
Remote ODU Local ODU
Figure
5-9. Remote Internal Loopback
Remote External Loopback
Remote WinLink1000 can be set to an external loopback to test the
remote E1/T1 port and its connection to the remote side user
equipment. In this mode, data coming from the remote user equipment
is looped back to it (see
Figure
5-10
). This loopback is initiated by an
Testing WinLink1000 5-15