Model 6511RC User Manual | 5 • Troubleshooting and maintenance |
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To understand how these test modes work, you must first understand the basic architecture of the Model 6511RC’s TDM mapping functions. The TDM mapping function provides the connection between the
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H.110 bus |
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| Model 6511RC Matrix Switch |
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Figure 60. Matrix Switch TDM mapping architecture
The various loopback test modes route data through one or both of these framing processors, with the data path making a
Facility Loop [sonetFacilityLoop(1)]
You can use the facility loop to test and troubleshoot the operation of the
The facility loop (see figure 61) returns data received from the SDH facility (the
The
Figure 61. Facility Loopback test mode
To activate the facility loopback test mode:
1.On the configuration menu, click the SDH hyperlink to display the SDH Overview page.
Matrix Switch test tools | 87 |