Specifications

ASMi-54C LRS-102 Ver. 2.0 Overview 1-1
Chapter 1
Introduction
1.1 Overview
This manual describes the technical characteristics, applications, installation and
operation of the ASMi-54C SHDSL.bis I/O modules for the LRS-102 high-density
SNMP managed modem rack.
ASMi-54C modules are primarily intended to operate in a link with the ASMi-54
G.SHDSL.bis standalone modems offered by RAD, to provide a simple and low-
cost connectivity solution for delivering Ethernet data to customer’s premises
over the existing twisted pair (copper) infrastructure of the distribution plant,
while eliminating the need for repeaters. Each ASMi-54C module can connect to
up to eight ASMi-54 standalone modems, however it can also operate in a link
with another ASMi-54C module.
For details regarding the integration of ASMi-54C modules in LRS-102 systems and
systems applications, refer to the
LRS-102 Installation and Operation Manual .
Product Options
ASMi-54C has eight independently configurable SHDSL.bis external ports for
SHDSL services, and two 10/100 Mbps Ethernet ports for packet-based services
(with license-based activation), with internal Ethernet switching subsystem. It is
offered in two models with similar characteristics, which differ only in the type of
interfaces supported by the Ethernet ports:
• ASMi-54C/ETH/UTP: 10/100BASE-TX interfaces terminated in RJ-45
connectors.
• ASMi-54C/ETH/SFP: two sockets for Fast Ethernet SFP optical transceivers.
RAD offers several types of SFPs capable of meeting a wide range of
operational requirements.
Application
Installing ASMi-54C modules connected to ASMi-54 standalone modems enhances
the LRS-102 capabilities and services by offering cost-effective high-speed
Ethernet access over SHDSL, at ranges up to several kilometers, based on the
Ethernet for the First Mile (EFM) standard per IEEE 802.3-2005. ASMi-54C is
capable of operating at variable rates up to 5.7 Mbps over one twisted pair, and
supports bonding of 2 and 4 twisted pairs for rates up to 22.8 Mbps.
Figure 1-1 shows a typical application for an LRS-102 equipped with ASMi-54C
modules connected to ASMi-54 standalone modems.