[Soekris] net5501 boot trouble

[Steve Holdoway]

I know it's a long time since I've done this, but shouldn't there be an earth on pin 5 as well???

Steve

On Wed, 24 Oct 2007 08:41:11 +0000
"Poul-Henning Kamp" <phk at phk.freebsd.dk> wrote:

> In message <1193208595.14071.15.camel at aurora.internal>, Bill Maas writes:
> 
> >I rewired the cable and it works:
> >
> >RxD 2 ------------------- 3 TxD
> >TxD 3 ------------------- 2 RxD
> >
> >DTR 4 ------------------- 6 DSR
> >DSR 6 ------------------- 4 DTR
> >
> >RTS 7                     7 RTS
> > |                           |
> >CTS 8                     8 CTS
> > |                           |
> >DCD 1                     1 DCD
> 
> The traditional way is slightly different:
> 
> 	TXD--RXD
> 
> 	RXD--TXD
> 
> 	DCD--DTR
>         DSR/
> 
> 	DTR--DCD
> 	    \DSR
> 
> 	RTS  RTS
> 	 |    |
> 	CTS  CTS
> 
> The advantage being, that you don't trigger carrier loss if there
> is hardware flow-control involved on either side.
> 
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe    
> Never attribute to malice what can adequately be explained by incompetence.
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