when used to Adsl board This Object contains 64 upstream sub-carrier bit allocations (sub-carrier # 1-64). This Object is 32 bytes in length, where each byte contains 2 sub-carrier values. Byte 1-32 Upstream bit allocation information, total: 32 bytes, one byte for two sub-carriers. 1 Bits 7 - 4 # bits in 1st upstream sub-carrier 1 Bits 3 - 0 # bits in 2nd upstream sub-carrier ... 32 Bits 7 - 4 # bits in 63rd upstream sub-carrier 32 Bits 3 - 0 # bits in 64th upstream sub-carrier when used to Adsl2+ board This Object contains 64 upstream sub-carrier bit allocations (sub-carrier # 1-64). This Object is 64 bytes in length, where each byte contains 1 sub-carrier values. Byte 1-64 Upstream bit allocation information, total: 64 bytes, one byte for one sub-carriers. 1 Bits 7 - 0 # bits in 1st upstream sub-carrier ... 64 Bits 7 - 0 # bits in 64th upstream sub-carrier