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External ISDN Modem



Benefits

High-speed Internet and LAN access
Serial port and USB models
Easy to configure
Integrated analog and digital capabilities

The MultiModemISDN Basic Rate Interface ISDN modems provide high performance and easy installation with the powerful new USB model and serial models. These modems are perfect for users who require affordable digital access and high data transfer speeds to send or download graphics, large files, video clips or music files.


Features

Maximum bi-directional bandwidth to 128K
Lightning-fast data throughputs up to 512K with 4:1 Windows® compression
Dynamic bandwidth allocation with call bumping and line monitoring
Caller ID reporting
Analog port for voice or fax communication
Serial and USB compatible
S/T-interface on USB model; U-interface or S/T-interface on serial models
  for direct connection to Basic Rate ISDN
PAP and CHAP support
Data communications, fax and other value-added software
Flash memory for easy updates



Highlights

USB Freedom. The MultiModemISDN USB model gives you a greater level of freedom because it installs and hot swaps with other USB devices without restarting your computer. In addition, gaming and multimedia applications get a performance boost with the 12M bps USB port.

Simultaneous Voice and Data. Transmit/receive data on your computer over one ISDN B-channel and use the other B-channel for your phone or fax machine using the analog port.

Dynamic Bandwidth Allocation. Use the full bandwidth and still be able to make and take calls. The MultiModemISDN can combine channels for maximum 128K throughput and when traffic is low or an analog call (voice, fax, or data) comes in, one of the B-channels can be dropped.

Easy Installation. With MultiModemISDN serial models youˇ¦ll be up and running in minutes with Windows Plug and Play and an installation wizard that walks you through the configuration. The USB model boasts the easiest modem installation on the market today and is auto detected by Windows.

Complete WAN Protocol Support. With support for a full-range of WAN protocols, including PPP, ML-PPP, MP+™, V.120, X.75, CLEAR (synchronous), CHAP, MD5 and PAP you can connect to a variety of servers on the corporate LAN or Internet.


Specifications

Model
MTA128ST - BRI ISDN Modem w/ POTS
MTA128ST-USB - BRI ISDN Modem w/ POTS (USB)
ISDN Interface
Service: 2B+D Basic Rate Interface (BRI)
Interface: 2-wire U-type or 4-wire S/T-type interface
Rate: 64K bps/1 B-channel; 128K bps/2 B-channels; 16K bps/D-channel (for signalling) Sync or async (sync on one B-channel)
Connector: One RJ-45 jack
Analog Interface
One RJ-11 jack
Serial/USB Port
Serial: One async/460K bps RS-232 C/D or V.24
USB Port: 12M bps
ISDN Switch Types
National ISDN-1, AT&T 5ESS Custom, Northern Telecom DMS-100 Custom, ETSI/DSSI/NET3, NTT 1NSnet64, France VN-x
Protocols
PPP, ML-PPP, MP+, X.75, V.120, raw HDLC, CLEAR (synchronous), CHAP, MD5, & PAP
Operating Systems Support
Serial Models: Windows 95/98/Me/2000/XP, Windows NT, & Mac OS
USB Model: Windows 98/Me/2000
Physical Description
4.3" w x 1.0" h x 5.7" d; 8 oz
(10.9 cm x 2.5 cm x 14.5 cm; 227g)
Operating Environment
Operating Temperature: 32 - 120°F (0-50°C)
Humidity Range: 25-85% noncondensing
Approvals
FCC Parts 15B & 68; CE Mark

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