Specifications

T
T
el (toll free): 888-785-7393
el (toll free): 888-785-7393
!
!
Fax: [phone]
Fax: [phone]
!
!
[e-mail]
[e-mail]
!
!
www
www
.pulsewan.com
.pulsewan.com
xDSL
xDSL
Product
Product
s
s
28
28
LRS-52 SHDSL MODEM Rack
The LRS-52 is a manageable access system that offers a
complete SHDSL solution in the Local Loop. Each port in the
LRS-52 works opposite an SHDSL remote device in a point-to-
point configuration, providing each port with an independent
connection. The product supports SHDSL technology in full
compliance with ITU and ETSI standards. The LRS-52 is a
costeffective non-modular modem rack that can be used with
a dedicated number of ports. The user can choose between 12
and 24 ports in the 2-wire version, and between six and 12
ports in the 4-wire version. The LRS-52 is available in separate
versions for each user interface (E1, V.35 or X.21).
The LRS-52 has an SNMP agent on board that provides full SNMP management of the central and the remote units. It includes
a built-in Ethernet bridge and dual Ethernet ports for the connection of a large number of racks to single or multiple management
stations. The same Ethernet segment used for managing the LRS-52 can be used to manage other elements in the network, such
as backbone equipment, from the same management station. The LRS-52 has two additional ports, one for local ASCII terminal
management and the other for station clock connection. The RADview SNMP application running on an HP OpenView or PC
platform enables full management of the LRS-52 and the remote ASMi-52.
The LRS-52 can operate with either a single or dual AC or DC power supply. Each power supply supports a working rack,
enabling replacement during operation without any effect on system performance.
ASMi-52 2/4 Wire SHDSL MODEM
The ASMi-52 modem uses SHDSL technology, complying with the
ITU and ETSI standards, to extend the range of digital interfaces. The
ASMi-52 device offers extended distances and variable data rates up
to 2.3 Mbps over 2-wire and 4.6 Mbps over 4-wire.
It uses TC PAM-16 line coding, equalization, adaptive filtering and
echo cancellation to compensate for line impairments, bridge taps and
mixed cabling. This provides high immunity to background noise and
enables transmission of multiple SHDSL lines on the same physical
cable.
The ASMi-52 extends the range of 2 Mbps data transmission up to 4
km (2.5 miles) over 2-wire cable and even further over 4-wire cable.
It supports E1 (according to ITU G.704), V.35, RS-530, X.21, Ethernet
bridge and IP router user interfaces.
Standards compliance enables the ASMi-52 to work opposite third-
party vendor TDM equipment that supports the SHDSL standard. It
also works opposite the LRS-52 SHDSL modem rack, the LRS-24
rack and the DXC SHDSL modules. Monitoring, control and diagnos-
tics of local and remote units are available via a supervisory port. The
ASMi-52 includes an SNMP agent in both standalone and card
versions.
ASMi-52
Equipment Order Number
LRS-52 V.35 Chassis LRS-52/AC/V35
LRS-52 X.21 Chassis LRS-52/AC/X21
LRS-52 E1 Chassis LRS-52/AC/E1
ASMi-52 Serial V.35 ASMi-52/AC/V35
ASMi-52 Serial X.21 ASMi-52/AC/X21
ASMi-52 Ethernet ASMi-52/AC/UTP
Dual Modem Card for LRS Ethetnet ASMi-52CD/UTP
Dual Modem Card for LRS V.35 ASMi-52CD/V35
Dual Modem Card for LRS X.21 ASMi-52CD/X21
LRS-52 SHDSL MODEM Rack