ALC1224 User’s Guide
ADSL Port Setup
3-1
Chapter 3
ADSL Port Setup
This chapter explains how to configure the line card’s ADSL ports.
3.1 ADSL Port Setup Overview
The web configurator allows you to configure settings for profiles and individual ADSL ports on the line card. See
Chapter 4 Virtual Channel Management
for information on configuring virtual channels and virtual channel
profiles.
3.2 ADSL Standards Overview
Table 3-1 Maximum Transfer Rates of the ADSL Ports
STANDARD MAXIMUM
DOWNSTREAM MAXIMUM
UPSTREAM
G.dmt (ALC1224-71)
8160 Kbps
1024 Kbps
G.dmt Annex B (ALC1224-73)
8160 Kbps
1024 Kbps
ETSI (ALC1224-73)
8160 Kbps
1024 Kbps
ANSI T1.413 issue 2 (ALC1224-71)
8160 Kbps
1024 Kbps
ADSL2
1
12000 Kbps
1200 Kbps
ADSL2+
2
25000 Kbps
1200 Kbps
3.3 Downstream and Upstream
Downstream refers to traffic going out from the line card to the subscriber’s ADSL modem or router. Upstream
refers to traffic coming into the line card from the subscriber’s ADSL modem or router.
3.4 Profiles
A profile is a table that contains a list of pre-configured ADSL settings. Each ADSL port has one (and only one)
profile assigned to it at any given time. The profile defines the latency mode and upstream/downstream latency
delay, maximum and minimum upstream/downstream rates, the target upstream/downstream signal noise margins,
and the maximum and minimum upstream/downstream acceptable noise margins of all the ADSL ports that have
this profile. You can configure multiple profiles, including profiles for troubleshooting.
1
These are the rates that the ALC1224 supports for the standards at the time of writing.
2
At the time of writing ADSL2+ is not a standard.
Summary of Contents for ALC1224
Page 1: ...ALC1224 ADSL Line Card Version 3 50 LK 0 LV 0 August 2004 User s Guide...
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Page 38: ...ALC1224 User s Guide 2 6 Web Configurator Introduction Figure 2 6 ALC Edit Port Setup...
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Page 129: ...Index V Part V Index This part provides an index of important terms...
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