Tenda V1200 User Manual page 156

Parameter
T1.413
ADSL2
AnnexL
ADSL2+
AnnexM
VDSL2
Phone Line Pair
Bitswap
SRA
8a/8b/8c/8d/12a/12b/17a
US0
Description
It specifies ANSI_T1.413. Based on DMT standard, the maximum
uploading/downloading rate is 1.5 Mbps/15 Mbps. When it is used, POTS splitter
is required for clients.
It specifies G992.3. The maximum uploading/downloading rate is 1 Mbps/12
Mbps.
It specifies reach Extended ADSL2. When the clients are far away from the modem
router, this mode can improve the coverage. The maximum
uploading/downloading rate is 1.5 Mbps/15 Mbps.
It specifies G992.5. The maximum uploading/downloading rate is 1 Mbps/24
Mbps.
This mode is compatible with the upstreaming bandwidth extension mode and
implemented based on G992.3 ADSL2 and G992.5 ADSL2+. In this mode, the
upload rate of ADSL2+ is increased from 1 Mbps to 2.5 Mbps. AnnexM takes effect
only when ADSL2, AnnexL or ADSL2+ is selected.
It specifies G993.2. The maximum uploading/downloading transmission rate of
this device is 50 Mbps/80 Mbps.
The phone line pair is used to work with the DSLAM. The default is recommended.
Bitswap can improve the ADSL adaptation capacity and the stability of ADSL line in
the dynamic environment.
SRA (Seamless Rate Adaptation) is a dynamic rate adaptation protocol, really
achieving ADSL rate adaptation. It dynamically adjust bit and power assignment to
make the noise margin of the line within a suitable range when the ADSL line
changes in running process, ensuring the stability of the line.
These profiles are defined by the VDSL2 standard which enables the modem
router to support CO, FTTC applications and so on, reducing the complexity and
cost of the product development.
It specifies a DSL frequency spectrum used to improve the negotiation rate.
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