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NE management/equipment configuration
5.2.3
Overview of the controlled systems
Broadband applications
This section gives an overview of the AnyMedia Access System broadband applications.
5.2.3.1
Data system description
The AnyMedia Access System provides data services to subscribers, using asynchronous transfer mode (ATM) cell transfer and asymmetrical digital subscriber
line (ADSL) interface technology.
Overview
The AnyMedia Mainshelf provides end-to-end ATM cell transfer between customer premise equipment (ADSL modems) and network ATM switches. A mixed
telephony/data mainshelf is shown in Figure 5-1, page 5-3. This configuration allows subscriber access to Internet service providers (ISP), remote LAN applications or any other related ATM services. ATM connections are established using
permanent virtual channels (PVC).
Full-rate ADSL interface
The full-rate ADSL interface is a twisted 2-wire subscriber interface according to
ANSI T1.413 and ITU-T G.992.1. It provides voice and data transmission using
discrete multitone (DMT) technology. The connection can carry ADSL traffic as
well as the POTS signal.
ADSL-lite interface
The ADSL-lite interface is a twisted 2-wire subscriber interface according to ITU-T
G.992.2. It provides voice and data transmission using DMT technology. The connection can carry ADSL traffic as well as the POTS signal.
User interfaces
ADSL customer premise equipment is provided by an outside vendor for the AnyMedia Access System. The following end-user interfaces are available:
■
10BaseT/Ethernet for LAN interface applications (single or multiple users)
■
Universal serial bus 5 (USB)
■
PC network interface card (NIC).
The ADSL transmission is based on ANSI T1.413, Issue 2. In later releases, the
system supports ADSL transmission based on ADSL-lite.
The AFM pack (AFMDS3) interfaces up to x ADSL APs which may be installed in
the AnyMedia mainshelf (x is 15 for a FAST shelf and 19 for a BAIU shelf). ATM
traffic multiplexed to and from the ADSL APs is interfaced to the ATM network via
an DS3 link. The DS3 link can connect the ATM switch directly to the transmission
network.
ATM traffic
5.2.3.2
Network DS3 interfaces
DS3 connections
The AFM DS3 feeder interface on the AFM has the following connections:
■
Two DS3 ports
—
Port 1 is used to interface toward the ATM network
—
Port 2 is used to connect to any other AnyMedia Mainshelf that may
be daisy-chained.
AEM R1.7
363-211-454
Version 1.00
(06.00)
5-11