EXFO FTB-635 Wideband Copper and DSL Test Module - Manual (Page 319)

xDSL Tests: Using the Main Menu
Copper and xDSL Tests 311
Test Configuration

ADSL2+ Bonding - if VDSL2 option disabled, BOND option
enabled.

VDSL2/ADSL2+ Bonding - if VDSL2 and BOND options enabled.

VDSL2-30a - if VDSL2MOD option enabled.
The V2XAB unit does Annex A and Annex B. Annex A is on pair 2 and Annex
B is on pair 1.

The Line mode setup options for the V2XAB module are the following:

ADSL2+ (xB/P1) - if VDSL2MOD option disabled, Annex B mode.

ADSL2+ (xA/P2) - if VDSL2MOD option disabled, Annex A mode.

VDSL2/ADSL2+ (xB/P1) - if VDSL2MOD option enabled, Annex B
mode.

VDSL2/ADSL2+ (xA/P2) - if VDSL2MOD option enabled, Annex A
mode.

ADSLMulti (xB/P1) - supports G.DMT only.

ADSL2Multi (xA/P2) - support G.dmt and T1.413 only.

VDSL Bonding - if VDSL2 and Bonding options are enabled.

VDSL2-30a (P1) - if VDSL2MOD option is enabled.

Annex M allows you to Enable/Disable this option when Line mode is
ADSL2+ (xA/P2) or VDSL2/ADSL2+ (xA/P2).

Annex J allows you to Enable/Disable this option when Line mode is
ADSL2+ (xB/P1) or VDSL2/ADSL2+ (xB/P1).

Encapsulation depends on the network configuration and sets the
ATM to either LLC also known as LLC-SNAP (logical link control-sub
network address protocol) or VC_MUX (virtual channel multiplex).

VPI (ATM mode only) is the virtual path identifier (VPI) ranging from
0 through 255 for the downstream channel.