Specifications

Installation and Operation Manual Chapter 5 Diagnostics and Troubleshooting
Airmux-200 Ver. 1.750 Testing Airmux-200 5-13
Remote External Loopback
Remote Airmux-200 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 inband command sent from a
management station connected to the local unit.
Testing
Equipment
Management
Station
E1
Interface
/T1 E1
Interface
/T1
Local ODU
Inband Loopback
Activation Command
Remote ODU
Figure 5-10. Remote External Loopback
Local Internal Loopback
Local Airmux-200 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 (see
Figure 5-11 ). This loopback is initiated by an
inband command sent from a management station connected to the local unit.
Testing
Equipment
Management
Station
Local ODU
Inband Loopback
Activation Command
Remote ODU
E1/T1
Interface
E1
Interface
/T1
Figure 5-11. Local Internal Loopback