What is the ADSL2+ dependency feature and limitation of MA5600T and MA5603T? Many people may don’t know the concepts clearly, here’s some description about it as below.
Dependency Feature and Limitation
Dependency Feature
After the
physical layer retransmission function (G.INP) is enabled, L2 power saving
state, save our service (SOS), and bonding functions are unavailable.
Note:
G.INP and bonding
features are mutually exclusive based on the board for the H802ADPD board. For
the other boards they are mutually exclusive based on the port.
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The physical
layer retransmission feature requires cooperation of the CPE.
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The device
collects xDSL line parameter settings and reports them to the N2510. Then the
N2510 analyzes them and applies an optimization profile to activate lines based
on the user-defined optimization goal (stability, rate, and power).
Hardware Support
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The ADIF/ADLF,
ADPD/ADQD, ADKM, ADPE, and CAME boards support this feature.
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The SCUB, SCUF,
SCUH, and SCUN control boards support this feature.
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The modem must
support the ADSL/ADSL2+ protocol.
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The H802ADPD,
H805ADPD, H80BCAME, H802ADKM and H80BADPE boards support the physical layer
retransmission feature.
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The CAME, ADPD,
ADPE, and ADQD boards support F5 OAM loopback.
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The H802ADKM,
H805ADPD, H802ADPD, and H80BADPE boards support the ADSL ATM bonding feature.
Note:
Implementation of the
ADSL ATM bonding feature requires cooperation of CPE
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The ADKM board
supports MELT, including search tone tests.
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BCM boards
support physical layer retransmission, which enhances line reliability (BCM
proprietary solution).
Specification Restriction
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When the
transmission mode is set to G.lite (G.992.2/G.992.4), you can select only
"interleaved" as the channel mode.
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When the
downstream channel mode is adaptation during running, the maximum downstream
channel rate must be greater than the minimum rate. When setting the upstream
and downstream SNR margin, ensure that the minimum SNR margin is less than or
equal to the target SNR margin and the target SNR margin is less than or equal
to the maximum SNR margin.
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When setting
the ADSL upstream tone blackout configuration parameters, you can configure a
maximum of four tones. When setting the ADSL downstream tone blackout
configuration parameters, you can configure a maximum of eight tones.
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When
configuring the downstream PSD mask, you can configure a maximum of 32 groups.
Two 32 groups are divided into two parts with each part containing 16 groups.
If you configure the second part before the first part is filled with 16
groups, the system automatically adds the groups at the beginning of the second
part to the first part.
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When
configuring the upstream and downstream PSD mask parameters, you must configure
at least two points.
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According to
G.lite standards, when the transmission mode is G.lite (G0.992/G0.992), the
supported rate ranges from 64 kbit/s to 1536 kbit/s in the downstream direction
and from 32 kbit/s to 512 kbit/s in the upstream direction.
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