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

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 you’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.

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