<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta http-equiv="X-UA-Compatible" content="IE=edge" />
				<meta name="viewport" content="width=device-width, initial-scale=1" />
		<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
		<meta name="format-detection" content="telephone=no" />
		<meta name="robots" content="noindex" />
			<title>ADB Keyboard: Problem with Function Keys When Emulating VT240</title><body class="ac-gn-current-support">
	<input type="hidden"  id="cdsHeaderObj" data-json='{"setPod": "true",
"resourceUrl": "https://support.apple.com",
"akamaiUrl": "https://km.support.apple.com",
"modelValue": "Support",
"aiSearchServiceURL": "support.apple.com",
"podLocaleValue": "en_US",
"omnitureLocale": "us_en",
"aiCrossDomainSearchServiceURL": "support-suggestions.apple.com",
"podValue": "us~en",
"searchCountry": "us",
"enableAppleInstant": "yes",
"pageName": "kb",
"amlSuggestionsUrl": "https://www.apple.com/search-services/suggestions/",
"title": "ADB Keyboard: Problem with Function Keys When Emulating VT240",
"channelName": "LEGACY"
}'>
	<input type="hidden"  id="httpDownloadURL" value="http://support.apple.com">
<!-- 	
 -->

	
<aside id="ac-gn-segmentbar" class="ac-gn-segmentbar" lang="en-US" dir="ltr" data-strings="{ 'exit': 'Exit', 'view': '{%STOREFRONT%} Store Home', 'segments': { 'smb': 'Business Store Home', 'eduInd': 'Education Store Home', 'other': 'Store Home' } }">
</aside>

<h1 id="main-title">ADB Keyboard: Problem with Function Keys When Emulating VT240</h1>
<div id="abstract">
 
<div id="intro-container"><div class="truncate"><div class="attr SYMPTOMS"><div class="attr TOPIC"><FONT SIZE=4> </FONT><BR>
<FONT SIZE=4> <BR>
I am having problems using VT240 terminal emulators with Macintosh SEs with<BR>
Apple SuperDrives (formerly Apple FDHD) and extended keyboards. The problem <BR>
is that I can't use some function keys (PF2, PF3, and PF4), like the six keys <BR>
above the arrow keys on the extended keyboard.<BR>
 <BR>
It seems to be a CPU-related problem, because I have tried all the possible<BR>
combinations between the old and the new extended keyboard, reinstalled system<BR>
software 6.0.3, and used the latest revisions of the two emulators (VersaTerm<BR>
Pro and Mac240). I have problems only when using the Macintosh SEs with <BR>
SuperDrives.  Everything works fine with older CPUs.<BR>
 <BR>
What's going on?<BR>
 <BR>
</FONT></div></div> <!--  attr Symptom  --></div> <!--  truncate --></div> <!--  intro-container --><div class="clear"> </div>
 </div>   <!-- abstract end -->
<div id="articlecontent">
<div id="indicator-container">      
<div class="indicator archived"></div></div> <!-- Indicator-container -->
  <div class="attr SUMMARY">
We tested Mac240 on our Macintosh SE with a SuperDrive, and the function keys <BR>
are working exactly the same as on the Macintosh SE with 800K drive.<BR>
 <BR>
According to page 82 in Appendix A of the Mac240 manual, DEC keyboard keys<BR>
F1-F5 are not present on the ADB keyboard.These keys perform local functions<BR>
on a VT240 terminal (Hold Screen, Print Screen, Setup, DataTalk, and Break).<BR>
Equivalent operations are available in Mac240 menus. DEC keyboard F6 and up <BR>
are mapped to ADB keys F1 and up as follows:<BR>
 <BR>
         <BR>
  DEC Keyboard   ADB Keyboard<BR>
  --------       --------<BR>
  F1-F5          Not Present<BR>
  F6             F1<BR>
  F7             F2<BR>
  F8             F3<BR>
  F9             F4<BR>
  F10            F5<BR>
  F11            F6<BR>
  F12            F7<BR>
  F13            F8<BR>
  F14            F9<BR>
  Help           F10<BR>
  Do             F11<BR>
  F17            F12<BR>
  F18            F13<BR>
  F19            F14<BR>
  F20            F15<BR>
 <BR>
Pressing the F1 key on the ADB keyboard is equivalent to pressing the F6 key <BR>
on the VT240, which happens to be Control-C, the CANCEL key. Pressing F10 and <BR>
F11 on the ADB keyboard is like pressing the Help and Do keys on the DEC <BR>
keyboard.  This was verified using DEC Edit/TPU program.<BR>
 <BR>
The six keys above the arrow keys on the ADB keyboard also worked correctly <BR>
for us on the Macintosh SE with the SuperDrive and with the 800K drive. Keep <BR>
in mind that they do not have the same meanings as their labels. They work <BR>
like the DEC keyboard labels:<BR>
 <BR>
  DEC keyboard    ADB keyboard<BR>
  ------------    ------------<BR>
  Find            help<BR>
  Insert Here     home<BR>
  Remove          page up<BR>
  Select          del<BR>
  Prev Screen     end<BR>
  Next Screen     page down<BR>
 <BR>
One other thing to check is to make sure that the terminal is set correctly on<BR>
the host machine as VT200 series. On VAX/VMS, use the command:<BR>
 <BR>
$ SET TERMINAL/DEVICE=VT200<BR>
 <BR>
<BR>
<BR></div>
</div>


<!-- Start SiteCatalyst code version: H.8. -->


<!-- End SiteCatalyst code version: H.8. -->


<div class="mod-date">Published Date: Feb 18, 2012</div>
  <div id="mimosa-tags">
  
  <input type ="hidden" id="mimosa-tags-heading" value="Related Topics" />
  <input type ="hidden" id="showNavTagFlag" value="true" />
  <input type ="hidden" id="tags-localised" value="Tag" />
        </div>

</div><!--/#content-->
</div><!--/#main-->

<!-- Helpful not helpful section -->
 <div style="display:none">
<div id="meta">
                </div> <!--/#meta-->
</div>          
        <!-- Related Section -->
<div class="border-div"></div>      <!-- Offer Section -->
<div class="border-div"></div>
<div id="promo" style="display:none;"> Still need help?</div>          
         
<div style="clear:both;"></div>

</div>


<div class="footer-wrapper">

</div>


</html>