User`s manual

NVF-800S 4-Band VDSL IP DSLAM USER’S MANUAL Ver_B.2
136
6. Symptom:
VDSL line is at link margin.
Cause:
When the VDSL line is linking between 2 speeds at 5/15Mbps or 15/25Mbps.
Solution:
Fixed the speed to 5Mbps when it is linking between 5/15Mbps or fixed the speed to 15Mbps
when it is linking between 15/25Mbps.
7. Symptom:
VDSL flickers at 25Mbps when multicast streams.
Cause:
Power level is too high and noise immunity is weak.
Solution:
Fixed the speed to 15Mbps since 15Mbps is ideal for multicast streaming while 25Mbps is for
transferring large data file at high speed.