Specifications

Overview 1-1
Chapter 1
Introduction
1.1 Overview
ASMi-52L is an SHDSL modem, which operates in full duplex over 2/4-wire lines
and offers a cost-effective solution for delivering digital data to customer premises
over the existing copper cables. ASMi-52L handles multiple data rates in the range
of 64–4608 kbps. The modem supports X.21, V.35, and 10/100BaseT interfaces.
In addition, ASMi-52L may contain a Ethernet/Fast Ethernet integrated bridge with
VLAN management support.
ASMi-52L uses TC-PAM coding and complies with the ITU-T G.991.2
requirements.
Versions
DTE interface
• X.21 interface
• V.35 interface
• 10/100BaseT interface
• 4-port 10/100BaseT with integrated switch.
Line Interface
• 2-wire
• 4-wire.
Applications
Figure 1-1 illustrates a typical ASMi-52L application, in which standalone modems
operate opposite each other. Figure 1-2 shows a typical application of the remote
ASMi-52L units with a centrally located ASMi-52CD dual modem cards.