<div dir="auto">Is there a different framebuffer card for the older backplanes, or does it just get double-terminated?</div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Sep 28, 2026, 06:12 Romain Dolbeau via rescue <<a href="mailto:rescue@sunhelp.org">rescue@sunhelp.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Le lun. 28 sept. 2026 à 15:04, Dave McGuire via rescue<br>
<<a href="mailto:rescue@sunhelp.org" target="_blank" rel="noreferrer">rescue@sunhelp.org</a>> a écrit :<br>
> From dusty memory I'm pretty sure the P2 termination is provided by<br>
> the framebuffer in older Sun2 backplanes, and on the backplane itself<br>
> for later ones.<br>
<br>
That's also what the Sun Hardware FAQ part 4 implies<br>
(<<a href="https://www.sunhelp.org/faq/sunref4.html" rel="noreferrer noreferrer" target="_blank">https://www.sunhelp.org/faq/sunref4.html</a>>):<br>
<br>
>501-1003 monochrome video/keyboard/mouse TTL only Multibus<br>
>(...)<br>
> This board must be placed in a slot in the Multibus P2<br>
> section shared by the CPU. For backplane P/N 501-1090, it must<br>
> be placed in slot 6 to terminate the P2 bus; for newer<br>
> backplanes, it is usually placed in slot 6 anyway.<br>
<br>
Cordially,<br>
<br>
-- <br>
Romain Dolbeau<br>
<br>
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</blockquote></div>