Specifications

FibeAir 4800 Installation and Operation Guide Chapter 5 Diagnostics and Troubleshooting
FibeAir 4800 Installation and Operation Guide 5-13
2. From the Local or Remote drop-down box, select a loopback that you intend
to run, and click OK.
A confirmation message appears.
3. Click OK to activate a loopback.
FA4800 activates selected loopback. A loopback status arrow in the Main
menu turns green to indicate an active loopback.
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To deactivate a loopback:
• From the From the Local or Remote drop-down box of the Loopbacks dialog
box, select None and click OK.
A loopback is deactivated and the corresponding status arrow in the Main
menu becomes dimmed.
Figure 5-7. Loopbacks Dialog Box
Local External Loopback
Local FA4800 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.