Specifications

Chapter 5 Diagnostics and Troubleshooting Installation and Operation Manual
5-12 Testing Airmux-200 Airmux-200 Ver. 1.750
Local External Loopback
Local Airmux-200 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 ting
Equipment
Management
Station
E1
Interface
/T1
Local ODU
Figure 5-8. Local External Loopback
Remote Internal Loopback
Remote Airmux-200 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 Airmux-
200 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
Testing
Equipment
Remote ODU Local ODU
Figure 5-9. Remote Internal Loopback