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<title>sane-devel: Re: UMAX Astra 1200S seems to hang on all commands</title>
<h1>Re: UMAX Astra 1200S seems to hang on all commands</h1>
<b>Rod Pike</b> (<a href="mailto:rodneyp@netway.at"><i>rodneyp@netway.at</i></a>)<br>
<i>Mon, 06 Dec 1999 22:38:10 +0100</i>
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<li> <b>Next message:</b> <a href="0069.html">Mark Brown: "Re: UMAX Astra 1200S seems to hang on all commands"</a>
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Sorry if I'm repeating questions, I don't recall seeing the beginning of the<br>
thread.<br>
<p>
Is the 2920 terminated?<br>
Make sure you haven't left the ZIP terminator switched on in addition to the UMAX<br>
supplied terminator.<br>
<p>
It sounds like you are using the cable that came with the ZIP. What's the other<br>
cable you are using, I'm not familiar with the 2920 does it use a 25 pin D Sub,<br>
a 50 pin Centronics type or a 50 pin High density?<br>
<p>
Try simplifying your SCSI cabling. Does it work without the ZIP drive attached<br>
using the shortest cable and the supplied terminator?. If this passes or fails,<br>
try the longer cable. If both work or not try adding the ZIP to the end of the<br>
buss and using the internal termination in the ZIP to terminate the buss. I<br>
think the UMAX supplied terminator is passive, the one in the ZIP is active and<br>
should do a better job.<br>
<p>
I have a ZIP and UMAX 1220S as well. I would put the ZIP at the end of the buss<br>
instead of the scanner. I've tried other configurations and "seem" to remember<br>
having problems. I also "think" I had problems with the UMAX supplied cable but<br>
it's been a while and it may have been due to another device causing problems. I<br>
also tend to have alot of cabling/devices in my setup which can be problematic.<br>
You tend to get alot of discontinuities on the bus and different cabling with<br>
different impedances which can degrade the buss. Your setup doesn't sound like<br>
it should be a problem as long as the terminators are working properly which the<br>
above tests may help determine.<br>
<p>
I'm currently running 4 internal devices on a 5' ribbon and 3 external devices<br>
with about 8' of cable using an Adaptec 2940 and it's working (allways knock on<br>
wood). The scanner is the first external device on the buss, then the ZIP and<br>
finally an actively terminated hard drive is on the end of the buss.<br>
<p>
Hope that helps. Good luck<br>
<p>
Nathan Kennedy wrote:<br>
<p>
<i>&gt; The scsi bus is terminated at the scanner using the terminator that came with</i><br>
<i>&gt; it. The cable situation is a little long, but under the 20 ft.</i><br>
<i>&gt; specification. I have on 6 foot cable going from the scsi card to the zip</i><br>
<i>&gt; drive, and a three foot cord from the zip drive to the scanner.</i><br>
<i>&gt;</i><br>
<i>&gt; Nathan %-)</i><br>
<i>&gt;</i><br>
<i>&gt; Oliver Rauch wrote:</i><br>
<i>&gt;</i><br>
<i>&gt; &gt; Nathan Kennedy wrote:</i><br>
<i>&gt; &gt;</i><br>
<i>&gt; &gt; &gt; I just bought a brand new UMAX Astra 1200S scanner specifically for use</i><br>
<i>&gt; &gt; &gt; with sane. However it seems that it hangs on the initialization of the</i><br>
<i>&gt; &gt; &gt; scanner. I am using the card on an adaptec 2920 PCI card with a zip</i><br>
<i>&gt; &gt; &gt; drive in-line with the scanner.</i><br>
<i>&gt; &gt; &gt;</i><br>
<i>&gt; &gt; &gt; I have run the scanimage -T with a dll debug level of 128. Everything</i><br>
<i>&gt; &gt; &gt; goes fine, until it reaches the do_calibration command. Then it just</i><br>
<i>&gt; &gt; &gt; sits waiting for the scanner. I can usually &lt;ctrl&gt; c out of it, but any</i><br>
<i>&gt; &gt; &gt; attempt to unload the sg module and fdomain module results in a total</i><br>
<i>&gt; &gt; &gt; system lock up.</i><br>
<i>&gt; &gt; &gt;</i><br>
<i>&gt; &gt; &gt; Any help with this would be great. I am really looking forward to</i><br>
<i>&gt; &gt; &gt; removing windows off of my computer.</i><br>
<i>&gt; &gt;</i><br>
<i>&gt; &gt; Hi Nathan,</i><br>
<i>&gt; &gt;</i><br>
<i>&gt; &gt; is the scsi bus terminated correct on both ends of the bus,</i><br>
<i>&gt; &gt; how long is the scsi bus (all scsi cables together)?</i><br>
<i>&gt; &gt; is the driver for your scsi controller up to date?</i><br>
<i>&gt; &gt; Is disconnect reconnect disabled?</i><br>
<i>&gt; &gt;</i><br>
<i>&gt; &gt; Bye</i><br>
<i>&gt; &gt; Oliver</i><br>
<i>&gt; &gt;</i><br>
<i>&gt; &gt; --</i><br>
<i>&gt; &gt; Homepage: <a href="http://www.wolfsburg.de/~rauch">http://www.wolfsburg.de/~rauch</a></i><br>
<i>&gt; &gt; sane-umax: <a href="http://www.wolfsburg.de/~rauch/sane/sane-umax.html">http://www.wolfsburg.de/~rauch/sane/sane-umax.html</a></i><br>
<i>&gt; &gt; xsane: <a href="http://www.wolfsburg.de/~rauch/sane/sane-xsane.html">http://www.wolfsburg.de/~rauch/sane/sane-xsane.html</a></i><br>
<i>&gt; &gt; E-Mail: <a href="mailto:Oliver.Rauch@Wolfsburg.DE">mailto:Oliver.Rauch@Wolfsburg.DE</a></i><br>
<i>&gt; &gt;</i><br>
<i>&gt; &gt; --</i><br>
<i>&gt; &gt; Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a></i><br>
<i>&gt; &gt; To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a></i><br>
<i>&gt;</i><br>
<i>&gt; --</i><br>
<i>&gt; Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a></i><br>
<i>&gt; To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a></i><br>
<p>
<p>
<pre>
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</pre>
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<p>
<ul>
<!-- next="start" -->
<li> <b>Next message:</b> <a href="0069.html">Mark Brown: "Re: UMAX Astra 1200S seems to hang on all commands"</a>
<li> <b>Previous message:</b> <a href="0067.html">Nathan Kennedy: "Re: UMAX Astra 1200S seems to hang on all commands"</a>
<li> <b>Maybe in reply to:</b> <a href="0059.html">Nathan Kennedy: "UMAX Astra 1200S seems to hang on all commands"</a>
<!-- nextthread="start" -->
<li> <b>Next in thread:</b> <a href="0069.html">Mark Brown: "Re: UMAX Astra 1200S seems to hang on all commands"</a>
<!-- reply="end" -->
</ul>