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Express 3000 Series
ISDN Modems with 2 Phone Ports
Product Features
■ High-speed network
access for remote office
and Internet connectivity
using ISDN
■ Asynchronous and
synchronous (3010 only)
RS-232 interface
■ Expert ISDN
™
automatic SPID and
switch detection
■ Two analog POTS ports
■ Place and receive phone
calls while transmitting
data
■ Hifn LZS compression
■ Supports custom calling
features and Caller ID
■ Remote configuration
■ Easy configuration via
AT commands or VT100
interface
■ Flash upgradable
■ Standard five-year
warrantyy
The ADTRAN Express
™
3000 series is a family
of ISDN modems that are ideal for remote
access and corporate connectivity.The series
is capable of transmitting data at speeds up to
230.4 Kbps, when using hi/fn compression or
up to 512 Kbps when using Microsoft
compression. They include both ISDN
terminal adapter and network termination
(NT1) functionality.
Configuring the Express series is fast and
simple. ADTRAN's patented Expert ISDN
™
automatically detects the telephone company
parameters such as Switch Type and SPID
numbers. In areas where the telephone
company automatically downloads this infor-
mation to the modem, the units becomes
plug-and-play with the ISDN line.
The Express series supports two analog
devices such as telephone, fax machine, or
analog modem in addition to the computer
connection for data transmissions on the
Express 3000. When transmitting data at
maximum throughput over both B Channels
using Multi-link PPP, the unit automatically
detects calls on analog port number 1.
Upon detection, the data speed is adjusted
to 64 Kbps using the B2 Channel and accepts
the analog/voice call, on the B1 Channel.
Upon completion of the analog/voice call,
the data automatically resumes transfer
over both B Channels.
Remote configuration allows MIS
managers the flexibility of adjusting the
configuration of remote units over the ISDN
line. The Express transmits data over an
RS-232 interface and transfers synchronous
data at rates from 2400 bps to 128 Kbps
(Express 3010 only) and asynchronous data
at rates from 1200 bps to 230.4 Kbps. At
rates over 64 Kbps, BONDing or MLPPP is
used to synchronize the data across the
two B Channels. Configuration of the unit is
achieved using a VT100 interface or AT
commands. Dialing is initiated in-band over
the RS-232 interface using AT commands,
V.25 bis or DTR assertion.
U-Interface
Express 3010
PC
ISDN