User's Guide

Chapter 1 – Description & Specifications
Multi-Tech Systems, Inc. MultiModem® EDGE Wireless Modem User Guide 10
Benefits/Features in Applications
Short Development Time. The MultiModem EDGE Wireless Modem can make your device,
machine, or system, communication-ready without hardware design changes. It is a complete,
ready-to-deploy wireless modem. Because PTCRB and RF approvals have already been secured,
regulatory delays will not impede the time-to-market for products that use the EDGE MultiModem.
Short Message Services. The MultiModem EDGE Wireless Modem offers SMS features such as
text and PDU, point-to-point (MT/MO) and cell broadcast.
Industry-standard Modem Commands. The MultiModem EDGE Wireless Modem accepts
industry-standard AT-style commands so that the MultiModem can be integrated easily into your
existing software application.
Industrial Chassis. The MultiModem GRPS Wireless Modem is packaged in a rugged, water
resistant, industrial chassis. The chassis has an RS-232 DE-15 Voice/Data interface connector
and a permanent screw-type power connector. It also has an SMA antenna connector. The
chassis can be side-mounted on a panel or top-mounted on a desktop or other surface. A set of
LEDs indicates the modem’s operational status.
Packet-Switched Data. The MultiModem EDGE Wireless Modem supports EDGE Class 10
packet-switched cellular data. It links the mobile cellular network to the Internet at speeds up to
240 kbps. Any service that is used over the fixed Internet today – File Transfer Protocol (FTP),
web browsing, chat, e-mail, telnet -- is available over the cellular network, as well. The
MultiModem EDGE supports PBCCH and coding schemes CS1 to CS4, and is compliant with
SMG31bis.
Circuit-Switched Data (CSD). The MultiModem EDGE Wireless Modem also supports GSM
circuit-switched cellular data connections. Circuit-switched data connections support speeds up to
9600 bps, Class 1 Group 3 fax. CSD cellular wireless connections are ideal for applications that
require a quick wireless replacement of an existing point-to-point analog dial-up connection. They
integrate seamlessly with your current application requiring little infrastructure change.
Internet-Enabled. The MultiModem EDGE Wireless Modem includes an embedded TCP/IP
protocol stack to bring Internet connectivity to any device. Using the embedded Internet protocols
and the wireless connection to an IP network, it sends and receives data over the Internet. It can
also serve a single web page in response to a web browser request.
Voice Features. The MultiModem EDGE supports telephony and Dual Tone Multi Frequency
(DTMF) functionality. It also allows for emergency calls as well as echo cancellation and noise
reduction (option). It supports full rate, enhanced Full Rate and Half Rate (FR/EFR/HR).
Comprehensive Service and Support. The MultiTech commitment to service means we provide
a two-year product warranty and service that includes technical support, 24-hour web site, and ftp
support.