Zhone 7995 ユーザーガイド
A. Configuration Options
A-2
September 2004
7990-A2-GB20-20
DSL Interface Options
For DSL Port Interface Options, refer to
Table A-1, DSL Interface Options
.
To access the DSL Interface Options screen, follow this menu selection sequence:
Main Menu
→Configuration→Current Configuration→DSL Port
Table A-1.
DSL Interface Options (1 of 3)
Estimated Line Length
This value is usually specified by the carrier.
Possible Settings: Short, Medium, Long
Default Setting: Short
Default Setting: Short
The estimated line length is the estimated distance from the local exchange to determine
the speeds that can be supported.
the speeds that can be supported.
Estimated Line Length appears only when DSL Mode is set to STU-C and
Spectrum Management is enabled (see
Spectrum Management is enabled (see
).
Short – Can support speeds up to 2056 kbps (in 64 kbps increments).
Medium – Can support speeds up to 1480 kbps (in 64 kbps increments).
Long – Can support speeds up to 840 kbps (in 64 kbps increments).
Start Up Margin
Possible Settings: 0dB – 15dB
Default Setting: 4dB
Default Setting: 4dB
Specifies the Signal to Noise Ratio (SNR) margin a port must exceed to successfully train
up with the remote unit.
up with the remote unit.
0dB – 15dB – The Start Up Margin, in 1 dB increments.
main/config/dsl_interface
Model: 799x
DSL INTERFACE OPTIONS
Estimated Line Length: Long
Startup Margin: 4dB
Max DSL Rate: 2056 Kbps
Min DSL Rate: 2056 Kbps
EIA-530 Payload Rate: 2048 Kbps
Remotely Initiated Loopback: Enable
Peer IP Address: 135.090.025.001 Clear
Circuit Identifier: Clear
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