75 lines
4.6 KiB
HTML
75 lines
4.6 KiB
HTML
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<meta name="DC.Title" content="ISDN terminal adapter recommendations" />
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<meta name="abstract" content="There are several different terminal adapters that you can use." />
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<title>ISDN terminal adapter recommendations</title>
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</head>
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<body id="rzaiyadpgood"><a name="rzaiyadpgood"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">ISDN terminal adapter recommendations</h1>
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<div><p>There are several different terminal adapters that you can use.</p>
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<div class="section"><p>The suggested external ISDN terminal adapter, or ISDN modem, is
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the <strong>3Com/U.S. Robotics Courier I ISDN V.Everything</strong>. It supports V.34
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analog modem connections, V.90 (X2), V.92, and Multilink PPP over ISDN in
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both origination and answer modes on iSeries™ server. It also automatically
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supports Challenge Handshake Authentication Protocol (CHAP) over the ISDN
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PPP connection. The following ISDN terminal adapters are also available: Zyxel
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Omni.net Plus TA, Zyxel Omni.net LCD plus TA, and ADtran ISU 2x64 Dual Port. </p>
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<ul><li><strong>Connections that originate from the iSeries server.</strong> CHAP challenges that
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originate from the receiving side are answered by the Courier I terminal adapter,
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while negotiating Password Authentication Protocol (PAP) authentication with
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the iSeries server.
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PAP responses do not appear on the ISDN connection.</li>
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<li><strong>Connections that the iSeries server answers.</strong> The Courier I requires
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CHAP authentication by the calling side if the iSeries server answer configuration causes
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the iSeries server
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to open authentication with a CHAP challenge. If the iSeries server opens authentication with
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PAP, the Courier I terminal adapter authenticates with PAP.</li>
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</ul>
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</div>
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<div class="section"><p><strong>If you are using a pre-1999 Courier I modem,</strong> verify that
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the Courier I modem is connected to your iSeries server by a V.35 cable to get
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the best performance from your ISDN connection. An RS-232 to V.35 modem cable
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is supplied with the Courier I modem; however, older versions of this cable
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have the wrong gender V.35 connector. Contact 3Com/US Robotics Customer Support
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for a replacement. </p>
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<div class="note"><span class="notetitle">Note:</span> According to 3Com/US Robotics, the V.35 version
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of this terminal adapter is no longer , though some may still be from third
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party suppliers. The RS-232 version is still suggested at somewhat reduced
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performance on iSeries,
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since RS-232 connections are limited to 115.2 Kb.</div>
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</div>
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<div class="section"><p>You can also obtain a V.35 to RS-232 adapter from Black Box Corporation.
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The part number is FA-058.</p>
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</div>
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<div class="section"><p>Be sure to set the V.35 line speed on iSeries server for 230.4 Kbps.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiyadapters.htm" title="ISDN provides you with a digital connection that allows you to communicate by using any combination of voice, data, and video, among other multimedia applications.">ISDN terminal adapters</a></div>
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</div>
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</div>
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</body>
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</html>
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