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AirMux-104 Installation and Operation Manual
Chapter 5 Diagnostics and Troubleshooting
Running Diagnostic Loopbacks
5-5
Local External Loopback
Local AirMux-104 can be set to an external loopback to test the local E1 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
its connection to the local side user equipment. In this mode, data coming from
the local user equipment is looped back to it (see
). This loopback is
initiated from a management station connected to the local unit.
Testing
Equipment
Management
Station
E1
Interface
Local RT
Figure 5-5. Local External Loopback
Remote Internal Loopback
Remote AirMux-104 can be set to an internal loopback to test connection
between the local and remote units, the local E1 port and its connection to the
local side user equipment. In this mode, data coming from the local AirMux-104 is
looped back to it (see
between the local and remote units, the local E1 port and its connection to the
local side user equipment. In this mode, data coming from the local AirMux-104 is
looped back to it (see
). This loopback is initiated from a management
station connected to the local unit.
Management
Station
E1
Interface
E1
Interface
Testing
Equipment
Remote RT
Local RT
Figure 5-6. Remote Internal Loopback