Note:
Annexes:
Similar to ADSL and ADSL2+, VDSL2 includes regional bandplan annexes that specify PSD Masks
which are designed to coexist with other services.
Annex A
specifies bandplans for the North American and
enables VDSL2 to be deployed with traditional POTS telephony.
Annex B
specifies bandplans for Europe and
and enables VDSL2 deployment with underlying POTS and ISDN services.
Annex C
allows VDSL2 to coexist
with TCM ISDN services, found primarily in Japan.
Bandplans:
VDSL2 is a true worldwide standard which has numerous configuration profiles and bandplans to
meet regional service provider requirements. The frequency bandwidth has increased from 12 MHz to 30 MHz,
with options for 8.5 MHz, 12 MHz, 17.7 MHz, and 30 MHz spectrums.
The standard also defines asymmetric (Plan 998) and symmetric (Plan 997) bandplans for the transmission of
upstream and downstream signals.
Profiles:
To simplify configuring network equipment, the standard defines profiles tailored for different regional
deployment architectures. There are eight profiles which define power options, bandwidths and minimum data
rates for each profile. The profiles are depicted in the table above.
MTTplus-_Test_Module
Page 29 of 44