Model 3196RC | 5 • Troubleshooting and maintenance |
|
|
DSL port |
| T1/E1 port 1 |
3196RC
Figure 52. Local loopback
To select local loop go to the iDSL page and find the port to be placed under loopback. Locate the Test Mode drop down menu and select local Loop(1). Go to the bottom of the screen and click on the Submit button.
To turn off the loop mode, use the Test Mode drop down menu, select “Off” and click on the Submit button. The port field should be highlighted in green when the port returns to data mode.
Remote loop
The remote loop, initiated from the 3196RC, will place a remote CPE (3092) in loopback mode. Under this condition, data sent by the 3196RC over the DSL link and destined to the iDSL port of a Model 3092 will be sent back to the 3196RC (see figure 53).
iDSL port
DSL data stream
1092
3196RC
Figure 53. Remote loopback
Note The test mode LED on the CPE will illuminate when the CPE’s iDSL port enters remote loopback mode. However the CPE does not notify users when its iDSL port enters remote loopback mode. There- fore, you may wish to notify any active users connected to the CPE device that service will be interrupted before executing any remote loopback testing.
Basic iDSL and T1/E1 test modes | 75 |
