Airlink 5200 User Manual

Application Note

for connecting the

AirLink Raven CDPD Modem

to Ethernet Devices using the

IP 5200 from DCB

March 2002

AirLink Communications, Inc.

Confidential Material - Not For Redistribution

AirLink Application Notes

THIS DOCUMENT CONTAINS CONFIDENTIAL MATERIAL AND

IS NOT INTENDED FOR REDISTRIBUTION.

Information contained herein is the property of AirLink Communications, Inc. and is produced for the
purpose of detailing technology developed by AirLink Communications, Inc. and its employees.
Reproduction or distribution of this document without the express written consent of AirLink
Communications, Inc. is strictly prohibited. This document is subject to change without notice.

 Copyright AirLink Communications, Inc, 2001. All rights reserved.

Please send comments to:

Email: [e-mail]
Fax: [phone]
Phone: [phone]
Post: AirLink Communications, Inc.

Attention: Technical Publications Dept.
472 Kato Terrace
Fremont, CA 94539

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AirLink Application Notes

CONTENTS

1. OVERVIEW.....................................................................................................................................4

2. INTERNET (TCP/IP) CONNECTION VIA CDPD.....................................................................4

3. ETHERNET DEVICE & IP5200 CABLING & INSTALLATION.............................................4

4. IP5200 CONFIGURATION ..........................................................................................................5

5. AIRLINK RAVEN CDPD MODEM CONFIGURATI ON.........................................................11

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AirLink Application Notes

Frame

3 1 2

1. Overview

This document describes how to connect the AirLink Raven CDPD Modem to the IP5200 Async­Router from Data Communications for Business (DCB). Information on the IP5200 and DCB is available
at www.dcbnet.com . Additional information about AirLink Communications products is available at

www.AirLink.com

2. Internet (TCP/IP) Connection via CDPD

Normally, remote access to an IP 5200 is done via Dialup Telephone Line. When using CDPD, remote
access to is done via a TCP/IP connection to the CDPD Network (ie: Internet) an d the use of a CDPD
Modem connected to a DCBNet IP5200 Single-Port Async-Router.

On the HOST side, access to the CDPD Network could be made using any of the following means:

1. Using a Frame Relay connection into the CDPD Network

2. Using the public Internet

3. Using another CDPD Modem connected to the Host System

Relay

Internet

Other

CDPD

Networks

Local

CDPD

Network

3. Ethernet Device & IP5200 Cabling & Installation

Setting up the Ethernet device (PC, RTU, PLC, etc) for communicating over CDPD is fairly
straightforward. All the same configuration settings used for a LAN installation apply to a CDPD
installation. Since the device is actually sitting on a very small LAN, (just the device and the IP5200), the
IP Address would be a private IP, such as: 192.168.1.101. The IP5200 would have an Address in the
same range, such as: 192.168.1.100.

DNS, FTP, SMTP, and Email settings would be for servers visible to the public Internet or in the
case of Frame Relay connections to the CDPD network – IP Addresses visible to the Frame Relay cloud.
(See your Network Administrator or Carrier for more details on which Addresses or server names to use).

When the device initiates Ethernet traffic (by either sending an email or starting an FTP session, etc),
the router will dial the CDPD modem and establish a PPP connection. The CDPD Modem will supply the
router with its IP address, virtually becoming the router’s Internet Service Provider (ISP).

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