Testing the Connection
WinLink User and Installation Guide Version 1.750 6-108
Remote External Loopback
The remote unit 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. This loopback is initiated by an in band command sent from
a management station connected to the local unit.
Tes ti ng
Equipment
Management
Station
E1
Interface
/T1 E1
Interface
/T1
Local ODU
Inband Loopback
Activation Command
Remote ODU
Figure
6-5: Remote External Loopback
Local Internal Loopback
The local unit can be set to close an internal loopback to test
connection between the local and remote units, 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. This
loopback is initiated by an in band command sent from a management
station connected to the local unit.
Tes ti ng
Equipment
Management
Station
Local ODU
Inband Loopback
Activation Command
Remote ODU
E1/T1
Interface
E1
Interface
/T1
Figure
6-6: Local Internal Loopback
To Next Page
Loading...
