User`s guide

ADSL/VoIP Gateway User’s Guide Advanced DSL port attributes
107
Attribute Value Default
Rx Auto Bin Adjust Disable – the bin settings configured as the
RxStartBin/RxEndBin parameters are used
Enable – DSP automatically adjusts the bin selection for
receive signal
Enable
Tx Attenuation A value between 0dB and 12dB that indicates the
transmit power attenuation
0
Bit Swap Disable – disables the adjustment of the number of bits
assigned to a subcarrier without interrupting data flow
Enable – enables the adjustment off the number of bits
assigned to a subcarrier without interrupting data flow
Enable
Annex Type AnnexA – sets AnnexA as the Annex compliance of the
code release
G.Span – sets G.Span as the Annex compliance of the
code release
AnnexA
Max Down Rate A value that sets the maximum downstream rate for
those applications where it is necessary to limit the
downstream data rate
4095
Physical Port A value between 0 and 14 that sets the Utopia Level 2
Utopia address
0
Retrain Disable – disables full retrain capability
Enable – enables full retrain capability
Enable
Detect Noise Enables/disables noise detection (only valid for Annex
AHS)
N/A
Capability This parameter controls whether the CPE will attempt to
startup using alternate standards if the CO does not
support G.Span (High Speed (HS)).
The CPE has the ability to connect in either ADSL
Annex A or G.Span. This is provided by the
ADSL/Annex A /G.Span Auto Detect feature. The
standard used depends on the capability of the CO.
Using Auto Detect, startup at the CPE is first attempted
in Annex A. The CO is the master and the CPE is the
slave. If the result of handshake with the CO is G.Span
(HS), then the CPE will switch to G.Span. If the CO does
not support G.Span, then the resultant connection will be
ADSL Annex A.
This parameter must be set to AHS to configure the
modem for A & HS ‘two-speed’ Auto Detect. For Auto
Detect, all other parameters should be set to the Annex
A profile. If UTOPIA Level 2 framing is set (using the
UtopiaInterface parameter), ensure that the UTOPIA
address is set (using the PhysicalPort parameter) as
there is no default value. If the result of handshake with
the CO is G.Span (HS), then the CPE will switch to
G.Span and the appropriate CPE parameters will be
automatically re-configured by the DSP for G.Span
operation.
A: Annex A capable
AHS: Annex A or High Speed capable
Disable: the device does not send any standards
capability information to the CO.
Disable
Coding Gain The gain due to trellis/RS coding. Its value ranges from
0-7 dB. Auto automatically selects the coding gain.
auto