3
2-Wire iDSL Line Drivers
Extend your distances by using
four wires instead of two. This iDSL
(ISDN DSL) card supports high-
speed operation on single or dual
copper pairs. Specifically, it enables
synchronous or asynchronous data
to be transmitted point-to-point up
to 10 mi./16.1 km over one or two
twisted pair (2- or 4-wire).
Supporting synchronous speeds
up to 128 kbps and asynchronous
speeds up to 38.4 kbps, the card
is perfect for LAN interconnection
or high-speed Internet links.
To compensate for poor line
quality, the iDSL Card supports
2B1Q encoding, automatic
equalization, and auto gain control.
2B1Q line coding lessens crosstalk
between adjacent lines and
improves signal-to-noise ratios.
The card is fully SNMP
manageable using the SNMP/HTTP
Card. As with the hDSL and mDSL
cards, the iDSL Card features
convenient front-panel diagnostic
DIP switches, LEDs that allow for
easy setup, configuration, and
testing, as well as remote digital
loopback and local line loopback
diagnostics.
The 2-Wire iDSL Line Driver
Card can be ordered with interfaces
for V.24, V.35, X.21, 10BASE-T,
G.703/G.704, or RS-530 networks.
For more information,
including details on our
standalone models, request
Product Data Sheet 25845. Our
Tech Support experts are also
ready to answer your questions.
Micro T1 CSU/DSU Cards
With this 4-wire card, you get a
T1/Fractional T1 (FT1) CSU/DSU and
high-speed point-to-point modem in
a single rack card package.
It’s an excellent choice for
terminating leased lines, Frame
Relay backbones, Internet access,
and LAN-to-LAN services. The card
provides digital access to a local
WAN service provider or between
two facilities over a dedicated
4-wire circuit.
Specifically, the Micro T1
CSU/DSU Card terminates T1 or
FT1 lines over a 4-wire RJ-48C
interface. When used to terminate
a T1-dedicated digital circuit, the
card supports n x 56 kbps and n x 64
kbps framing for T1 and 10BASE-T
Ethernet, V.35, and RS-530
(continued from page 2)
interfaces. Each of these options
supports one DTE interface
connection and one 4-wire line
connection.
A full range of system and
diagnostic features make setup
simple and easy. The card
supports D4/ESF framing options
and AMI/B8ZS/B7ZS line coding.
You can set framing, line coding,
and aggregate bandwidth plus
initiate remote digital loopbacks
and local line loopbacks as well
as send test patterns.
Use the four easily accessible
DIP switches to program the card‘s
data rates, framing, and coding
options. You can also perform these
functions using a menu-driven
VT100
™
terminal, which connects
via the card’s software control port.
Just order a Control Module, which
installs alongside the Micro T1
CSU/DSU Card in the 16-Port
Managed MicroRACK.
SNMP/HTTP Card
The SNMP/HTTP Card is the
perfect complement to the function
cards and 16-Port Managed
MicroRACK. It comes with user-
friendly management software that
enables an operator to control the
rack from anywhere in the world via
the Internet.
Once it’s installed in the 16-Port
Managed MicroRACK, you can use
an SNMP workstation to configure
and monitor a number of
interconnected MicroRACKs, the
cards installed in them, and any
remote units linked to modem and
line driver cards.
The card functions as an SNMP
proxy agent for other MicroRACK
cards and their remote standalone
units. Once it’s fully booted, the
SNMP/HTTP Card polls the system,
looking for modems, line drivers,
and other function cards.
The SNMP/HTTP Card supports
generic SNMP management
software and MIB-walking tools.
Alternatively, you can use a
standard Web browser to access
the card’s embedded HTML
management screens.
The SNMP/HTTP Card can
be connected to an SNMP
workstation through a 10BASE-T
Ethernet. And, by making an FTP
connection to the card, you can use
its modular RJ-45 10BASE-T port for
flash upgrades.
To use the card, you’ll not only
need a VT100 terminal or VT100
terminal emulator but also a null-
(continued on page 4)
Standalone
mDSL Modem
(ME0008A)
Management
Station
Router
CSU/DSU
Internet
CSU/DSU
Router
LAN
16-Port Managed
MicroRACK (RM260)
chassis #2 through #4,
each with a
Control
Module (RM262C)
Standalone iDSL
modem
(ME0009A-IDSL)
2-Wire iDSL
Line Driver
(ME0001C)
Standalone hDSL
Modem (ME0007A)
Daisychain
connection from
SNMP/HTTP Card
to Control Module
16-Port Managed MicroRACK
(RM260)
chassis #1 with
SNMP/HTTP Card (RM261C-SNMP)
10BASE-T
connection to
SNMP/HTTP Card
DSL connection
to mDSL Card
(ME0004C) in
Rack
2B1Q connection to hDSL
Card (ME0003C) in Rack
The SNMP/HTTP Card uses a 10BASE-T Ethernet port
to connect to a local LAN or to anywhere in the world
through the Internet. Management can be performed
using any standard SNMP station or using a standard
Web browser with the card’s internal HTML management
screens. As shown in this diagram, the card can manage
multiple MicroRACKs full of modems, line drivers, etc.,
using a simple daisychain connection and a Control
Module (RM262C) in each managed rack.
Application
Example
