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CHAPTER 2: Introduction
2. Introduction
2.1 Description
The 2-Wire Short-Range DSL Line Driver (HDSL) V.35 or X.21 provides
high-speed 2-wire connectivity to ISPs, PTTs, and corporations using HDSL (High
Bit-Rate Digital Subscriber Line) technology. Supporting multiple line rates from
144 kbps to 1.168 Mbps, the Line Driver provides megabyte speeds to leased line,
LAN-to-LAN interconnection, and WAN access networks over 3.6 miles/5.8 km
(1.054 Mbps on 24-AWG/0.5-mm wire).
The HDSL Line Driver V.35 (ME0006A-V35) provides a V.35 interface on an M/34
female connector. The HDSL Line Driver X.21 (ME0006A-X21) provides an X.21
interface on a DB15 female connector. Features include loopback diagnostics, and
inband SNMP/HTTP remote management capabilities through a DSL Line Driver
Rack Card (ME0003C) CO and externally accessible configuration switches. Both
versions of the Line Driver are compatible with the popular QuikConnect HDSL
Line Driver (ME0007A-HDSL) standalone and DSL Line Driver Rack Card
(ME0003C) as well as the HDSL Line Driver 10BASE-T (ME0006A-10BT).
As a symmetric DSL NTU, the HDSL Line Driver offers the same data rates in both
directions over a single pair of regular telephone lines using 2B1Q modulation.
Line connection is made by an RJ-45 jack. The Line Driver is powered by a 100- to
240-VAC universal power supply.
2.2 Features
• High bit-rate DSL.
• 2B1Q modulation.
• DTE rates up to 1.152 Mbps.
• V.35 and X.21 interfaces.
• Interoperable with ME0003C and ME0007A.
• SNMP Manageable via Managed Micro Rack SNMP/HTTP Card (RM261C-
SNMP) through ME0003C/CO.
• Universal power supply.
• Front-panel status indicators.
• Small, convenient desktop unit.
• CE marked.
