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T1/E1 Diagnostics 139
Model 3086 G.SHDSL Integrated Access Device User Guide 9 • Diagnostics
To set the 3086 T1/E1 port in Network Loopback test, do the following:
1. Go to the 3086 Main page, select E1/T1. Next, click on Test Modes, select network Loop using the drop
down menu, click on the
Activate Test Mode
button.
2. Perform a BER (bit error rate) test. Replace the Local T1/E1 equipment (PBX) with a T1/E1 tester, and
initiate a BER test to verify integrity of the cable and operation of the 3086’s T1 interface.
T1/E1 Local Loop
When set to local loop, the 3086/K loops DSL timeslots assigned to carry T1/E1 data to far end 3086 or
3096RC T-DACS.
Figure 15. 3086/K T1/E1 local loop
To set the 3086 in T1/E1 local loop test, follow these steps: