RAD Data comm ASMi-52 manual Overview, Versions, DTE Interface, Line Interface

Chapter 1

Introduction

1.1Overview

ASMi-52 is an SHDSL modem that operates in full-duplex over 2/4-wire lines and offers a cost-effective solution for delivering digital data to customer premises over existing copper cables. ASMi-52 handles multiple data rates in the range of 64–4608 kbps. The unit is available with a single data port or as a multiplexer with two data ports. The modem supports X.21, V.35, RS-530, E1 and T1 interfaces. In addition, ASMi-52 may contain an Ethernet/Fast Ethernet bridge with VLAN support (via management LAN port), or an IP router (IR-IP).

ASMi-52 uses TC-PAM coding and complies with the ITU-T G.991.2 requirements, see page 1-7.

Certain multiplexer application combinations are possible. See Table 1-4 for the multiplexer applications.

Versions

DTE Interface

ASMi-52 supports the following DTE interfaces:

•X.21

•V.35

•RS-530

•E1, as per G.704

•T1

•Ethernet/Fast Ethernet bridge with VLAN support (combined with management LAN port)

•IR-IP (IP router).

The following combinations of interfaces can be multiplexed:

•V.35 + LAN

•E1 + LAN

•E1 + serial port (V.35, X.21, RS-530)

Line Interface

•ASMi-52 for operation over a 2-wire line

•ASMi-52 for operation over a 4-wire line.

ASMi-52 Ver. 2.5 Overview 1-1