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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.
Data Rate (kbps)
Type
4
then select a data rate (number
transmission rate, in kilobits per second, up to which the modem can negotiate and
synchronize with another device (modem or a DSLAM) to which it is attached. When
the
Bit Rate Mode
comply with the standard G.shdsl data rate range):
•
for the MM702G modem, 384 kbps to 4608 kbps, in 128 kbps increments (default
value is 4608)
•
for the MM701G modem, 192 kbps to 2304 kbps, in 64 kbps increments
Rates down to 64 kbps are supported only when operating in single-pair,
point-to-point mode with another ADC modem. (see
Point-to-Point LAN
When the
MM701G default value) or for an MM702G set to
below)
,
cannot be used in
122
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
(page 123) is set to
Extension").
(page 123) is set to
Bit Rate Mode
this field is automatically set to
Adaptive Bit Rate Mode
1
to
21
for possible values between
Disable
the margin.The target signal-to-noise margin,
1
through
34
) which determines the maximum
Fixed,
the range of values are (ADC modems
for an MM701G (
Adaptive
Single Wire Pair Mode
. An MM702G in
Adaptive
.
-10dB
through
-7
or better to successfully
Chapter
7,
"Implementing a
Adaptive
only (see
Dual Wire Pair Mode
MM701G and MM702G User Manual
is
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