Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!spool.mu.edu!news.cs.indiana.edu!msi.umn.edu!noc.MR.NET!gacvx2.gac.edu!hhdist From: robert@longs.LANCE.ColoState.Edu Newsgroups: comp.sys.handhelds Subject: RE: Using HP-48 with modem Message-ID: <9104120122.AA00529@longs> Date: 12 Apr 91 01:22:41 GMT Lines: 17 Return-path: In-reply-to: ; from "handhelds@gac.edu" at Apr10, 91 8:05 pm To: handhelds@gac.edu *> Has anybody used the HP-48 with a modem? The 48 controls the Transmit *> Data line but apparently leaves the Ready To Send and Data Terminal *> Ready lines unchanged. And it seems the modem expects Ready To Send and *> Data Terminal Ready to be asserted -- and their polarity is different *> from that for Transmit Data, which makes me think asserting RTS and DTR *> can't be done just with a couple of jumpers. Are there any solutions? *> *> *> -- edp (Eric Postpischil) *> "Always mount a scratch monkey." *> edp@jareth.enet.dec.com I use my 48 with a modem quite frequently. I makes for good kermit transfers to and from the host easy :-) All I did was get a straight through cable and then (on the modem end) jumper pins 6 and 20 and also jumper 4 and 5. Everything else works just fine. Hope this helps... -Robert