LevelOne VDS-0110 - Manual (Page 8)

8
Pin 3: Rate limit control
50/20 Mbps: Line rate limited to 50/20 Mbps.
Full Rate: Provides up to 100Mbps/60Mbps line rate in short line.
Pin 4: Signal to Noise Ratio (SNR)
9dB: Higher SNR margin (9dB) will result in less error with more stable VDSL2 link.
6dB: Original and Normal channel noise protection with 6 dB SNR.