<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><BR><DIV><DIV>On Apr 6, 2006, at 12:00 PM, <A href="mailto:beowulf-request@beowulf.org">beowulf-request@beowulf.org</A> wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><P style="margin: 0.0px 0.0px 0.0px 0.0px; font: 13.0px Lucida Grande; min-height: 16.0px"><BR></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Lucida Grande" size="4" style="font: 13.0px Lucida Grande">And, I suppose one could gang up a raft of $9 USB/Serial dongles on a USB<SPAN class="Apple-converted-space"> </SPAN></FONT><FONT face="Lucida Grande" size="4" style="font: 13.0px Lucida Grande">hub (somehow, I suspect that this is fraught with peril)</FONT></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px; font: 13.0px Lucida Grande; min-height: 16.0px"><BR></P> <P style="margin: 0.0px 0.0px 0.0px 0.0px"><FONT face="Lucida Grande" size="4" style="font: 13.0px Lucida Grande">The device has to allow independent control of RTS and reading CTS (which<SPAN class="Apple-converted-space"> </SPAN></FONT><FONT face="Lucida Grande" size="4" style="font: 13.0px Lucida Grande">may not be used in the usual flow control scheme)</FONT></P> </BLOCKQUOTE></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV>It might be a tall order to get the ":cheap" $9 USB to Serial adapter to do Request to Send / Clear to Send / hardware handshaking ... probably should consider Xon / Xoff / software handshaking instead = not a problem for the least expensive USB to Serial adapters. (Ctrl S / Ctrl Q being easy from the command line or script to get the port to respond.)<DIV><BR><DIV> <P style="margin: 0.0px 0.0px 0.0px 0.0px; font: 13.0px Lucida Grande">Ed Karns</P></DIV>FireWireStuff.com <BR></DIV><DIV><BR class="khtml-block-placeholder"></DIV></BODY></HTML>