ZyXEL Communications ALC1024, Руководство пользователя

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ALC 1024 Overview
ALC1024 Overview 1-1
This chapter introduces the ADSL line card’s general features, factory default settings and hardware.
1.1 ALC1024 Overview
The ALC1024 (ADSL Line Card) provides ADSL service for 24 subscribers over existing telephone wiring, thus
avoiding the cost and hassle of installing new wiring. ADSL allows you to extend the reach of broadband services
up to 18,000 feet. This makes the ADSL line card perfect for providing high bandwidth broadband service to
subscribers who are spread out over a large area.
The ASC1024 (ADSL Splitter Card) combines voice service and ADSL on the same telephone wiring.
Use this chapter’s Telco-50 connector pin assignments along with the directions and safety warnings in the
Integrated Ethernet Switch’s User’s Guide to install the cards and make the necessary connections. Install the
ADSL line card in the main chassis. Install the ADSL splitter card in the splitter chassis.
The following features, default settings and hardware specifications apply to the ADSL line card whether it is
used with the MSC (Management Switch Card) or the EEC (Ethernet Extension Card). Refer to
Chapter 2
ALC1024 with EEC Overview for other features and default settings that apply to the configuration and
management of the ADSL line card when it is used with the Ethernet extension card.
1.2 Features of the ALC1024
ADSL Compliance
•
Multi-Mode ADSL standard
G.dmt (ITU-T G.992.1)
G.lite (ITU-T G.992.2)
G.hs (ITU-T G.994.1)
ANSI T1.413 issue 2
• Rate adaptation support
IEEE 802.1p Priority
Your ADSL line card uses IEEE 802.1p Priority to assign priority levels to individual ports.
Protocol
Multiple Protocols over AAL5 (RFC 1483)
System Monitoring
Chapter 1
ALC1024 Overview