SAGEM 3P@C
Echo
The echo is the reflection wave caused by the unbalance of line resistance or the bridge equipment in the line. The echo would result in the loss of signal energy, and extra interference the line, especially greatly affecting the
12.2.2.VDSL Line Commissioning
1.1.1.69Connection, Configuration and Test of Office End Equipment
1) Connection of the VDSL equipment
Subscribers need to remove the original jumpers at the distribution frame upon applying for the commissioning of VDSL service, and connect the distribution lines and jumpers again basing on the situation of the VDSL equipment, to separate the traditional PSTN service from the data service, as shown in Figure
Figure
Here:
P refers to the distribution frame of
W refers to the PSTN distribution frame of the VDSL equipment
N refers to the subscriber line distribution frame for the VDSL equipment
2} VDSL parameter configuration
Based on the service types selected by subscribers, the ports related to the VDSL office end equipment should be configured with the related parameters, including the VDSL upstream/downstream rates,
3) Testing the VDSL connection parameters
After the VDSL equipment has finished with its jumper setting in the distribution room, the connection test needs to be done in the actual environment, to ensure the commissioning of the VDSL service.
3P@C Installation Manual
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