SMC Networks SMC7816M, SMC7816VSW I, VDSL P, , S, 10-9

C ONFIGURING I NTERFACE S ETTINGS FOR VDSL P ORTS
10-9
•Region Ham Band – Sets the ham radio band that will be blocked to
VDSL signals based on defined usage types.
(Options: See Table 29-5,
“HAM Band Notches for Usage Types,” on page 29-10. Default : none)
Using a HAM band mask prevents interference with other systems
(e.g.,amateur radio) that use narrow band transmission in the VDSL
frequency band. The selected frequency range will not be used to
transmit data on the VDSL line. You may need to specify a mask for a
specific radio signal usage type if required by local regulations or if
specific incidents of interference are reported within a service area.
Abbreviation used in the RFI-Band field include the following items:
GMDSS: Global Maritime Distress and Safety System
DRM: Digital Radio Mondiale (Digital Radio Broadcasting)
CB: Citizen’s Band Radio
•Band Plan – Sets the frequency bands used for VDSL signals based on
a set of predefined plans. (Options: See Table 29-3, “VDSL2 Band
Plans,” on page29-5. Default: 998-640-30000 100/100)
The band plan options are described by ITU-T Standards G.9932. The
first field in the band plan designator indicates the ITU standard, the
second field indicates the lower frequency bound, and the third field
indicates the upper frequency bound.
•Option Band – Sets the frequencies to be used for the optional
Upstream Band 0 (US0). Note that each option includes a range for the
low and high end frequencies.
Options: No optional band (default)
ITU-T G993.2, Annex A, 6-32 kHz, 26-138 kHz
ITU-T G993.2, Annex B, 32-64 kHz, 138-276 kHz
ITU-T G993.2, Annex B, 6-64 kHz, 26-276 kHz
Performance enhancements have been incorporated in G.993.2 for the
optional US0 band (specifically, support in initialization for training of
time domain equalizers and echo cancellers) which provide reliable
operation on loops up to approximately 2500 meters of 26 AWG
(0.4 mm).