Technical data

Chapter 18 529
T1 Analyzer
More Information About T1 Testing
T1 Analyzer
Figure 18-10 Flow Diagram of In-band Loop-down Code Originating from the Test Set
The flow of events differs when the out-of-band method of loopback is selected. In
this case, loopback can occur within 16 ms, and therefore it is not possible to
determine if a pre-existing loop exists.
Yes
Timeout
No
Test Set Sends Loop-Down Code to Far End
Loop-Down Code
Detected From Far
End
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Test Set Stops Sending Loop Code
and Starts Sendig Test Pattern