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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
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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 w
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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 ......................................................................
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AirLink Application Notes 1. Overview This document describes how to connect the AirLink Raven CDPD Modem to the IP5200 Async- Router 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
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AirLink Application Notes Diagram of how to connect the IP5200 Router and CDPD modem: IP5200 is both a Dial-on-Demand Router and Network Firewall Ethernet Crossover Cable RS232 166.x.x.1 166.x.x.1 192.168.1.100 192.168.1.101 IP Address of CDPD Modem becomes Public Side Private Class-C IP Addresses are on same Address of Router during PPP negotiations. subnet using subnet mask 255.255.255.0. 4. IP5200 Configuration Setting up the IP5200 sh
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AirLink Application Notes You will need to set the Internet Account, LAN Settings, and Dial-out Modem parameters. The Internet Access setup screen for Ports 1 and 2 has three requirements: - ‘Enable’ must be checked - Tel-1 and Tel-2 should be entered as shown - Disconnect after Idle Time should be set to ‘0’. This will make sure the Multi-port Usage IP5200 does not drop the Even though the PPP connection when the IP5200’s (2) serial serial port
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AirLink Application Notes Since there is no actual Internet Account when connecting to a CDPD Modem, you can leave the User Name, Password, and IP Address allocated by ISP left blank. DNS should be the same as entered on the previous screen. No Script File is needed. LAN Configuration is actually referring to the Ethernet Port. The LAN IP Address needs to be different from the PLC address, but on the same network and using the same Net Mask. You will need to supply yo
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AirLink Application Notes Select the Modem option. Selecting the ‘Properties’ button will take you to the Modem Properties screen. The Modem setup screen has four requirements: - Initial String should be ‘AT’ - Serial Line Speed = 19200 - Dial Type = Other - Dial String = ‘ATDT’ - Auto-answer commands are N/A - Select ‘Save as Other’ AirLink Communications Page 8 www.airlink.com
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AirLink Application Notes The Advanced Menu has a great many features, most of which do not apply to this application. Most of these settings deal with the firewall functions inside the IP52000. Since there is only one device on the Ethernet port, and it is connected to a CDPD Modem, and not an ISP, the firewall is not really necessary. To put the Ethernet port outside the IP5200, you must set the device up as an Exposed Computer. Select Enable Exposed Computer Feature
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AirLink Application Notes Checking to see if the router works is easy. Go to the Port Status page on the Main Menu and Select the Dial-Up button. You can watch the Log for entries and errors, and see the Physical Link and PPP Link status right on the screen. You know right away if the connection to the modem is working or not. AirLink Communications Page 10 www.airlink.com
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AirLink Application Notes 5. AirLink Raven CDPD Modem Configuration The following are the proper S-Register configurations for the AirLink Raven CDPD Modem when connecting to the IP5200 for making a PPP connection. These settings can be made using Wireless ACE. CDPD Parameters: Connection Parameters: COM Port Parameters: [S110] Device Port=12345 [S0] TCP Auto Answer Mode=0 [\Q] Flow Control=2 [\N] Side Preference=3 [S7] TCP Establishment Timeout=20 [S23] Baud Rate=19200
