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Manage DSL
Standard Annex
Type
2
then select one of the following Annexes:
•
1
—
implementation of G.shdsl
•
2
—
implementation of G.shdsl. This is the default mode for the MM701G modem.
•
3
—
modem, and the device to which this modem is attached, can operate. This is the
default mode for the MM702G modem.
•
—
4
Access Network Frequency Plan Pulse Spectral Density (PSD) mask.
•
5
—
Access Network Frequency Plan Pulse Spectral Density (PSD) mask.
Startup Margin
Type
3
then select a number from
10dB
, or select
in decibels, that the modem must achieve with a BER of 10
complete synchronization. The default margin value is 6 dB. A lower margin may
result in a higher data rate, but it can increase noise on the line.
Bit Rate Mode
Type
4
then select either
the modem synchronizes with the device to which it is attached. The default for the
MM702G modem is
mode. The following provides more description for each mode.
•
Fixed
DSLAM or another modem) at a fixed bit rate through negotiation. The modem
will synchronize at the best rate, up to the data rate specified (page 122), that can
be achieved by both ends.
•
Adaptive
performs an adaptation phase during which it determines a best possible rate based
on conditions of the line. After adaptive mode, the modem will then negotiate the
best rate that can be achieved with the other end, based on the adaptation results.
3
Type
to
5
Apply new configuration
120
Annex-A
for operating conditions typically found in the North American
Annex-B
for operating conditions typically found in the European
Auto
for automatically negotiating the Annex A or B standard by which this
for operating conditions that include the Annex B standard with
Annex-B_ANFP
Auto_ANFP
for automatically negotiating the Annex A or B standard with
22
to completely
1
for
Adaptive
Fixed
mode. The default for the MM701G modem is
mode indicates that the modem will synchronize with the other end (a
mode indicates that prior to modem negotiating a rate, the modem
for the G.shdsl settings.
1
to
21
for possible values between
Disable
the margin.The target signal-to-noise margin,
or
2
for
Fixed
mode. Bit rate mode indicates how
-10dB
through
-7
or better to successfully
Adaptive
MM701G and MM702G User Manual
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