ATM back to back is usually pins 1,2 and 7,8 crossed.
--
Eric Fairfield
CCIE #6413
""Donald B Johnson Jr"" <[EMAIL PROTECTED]> wrote in message
005901c0ab39$7d576920$[EMAIL PROTECTED]">news:005901c0ab39$7d576920$[EMAIL PROTECTED]...
> is it possible to connect enhanced ATM interfaces together back to back
> Don
>
> ----- Original Message -----
> From: EA Louie <[EMAIL PROTECTED]>
> To: Brian M. Green <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
> Sent: Monday, March 12, 2001 9:15 AM
> Subject: Re: Building crossover cable
>
>
> > If you don't have a good understanding of "null modem", then you'd be
> better
> > off buying a crossover cable with standard connectors and then using the
> > individual adapter cables at the device ends (for example, V.35 or
RS-449
> > crossover off the shelf). Otherwise, you'll spend more time
> troubleshooting
> > and debugging your cable (bad pushpins, cold solder joints, loose
> > connections, etc) than actually using it. That being said, here's the
> > pinout for a V.35 crossover cable from the DB-60 serial connector on a
> Cisco
> > interface to a V.35 Winchester connector: (use the wiring in Table 23)
> >
> >
>
http://cisco.com/univercd/cc/td/doc/product/access/acs_mod/cis3600/marcabl.p
> > df
> >
> > ----- Original Message -----
> > From: Brian M. Green <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Monday, March 12, 2001 5:48 AM
> > Subject: Building crossover cable
> >
> >
> > > I am building a crossover cable to connect a Cisco and a Nortel/Bay
> > > router. I know that the transmit, receive, CTS, RTS, etc. should be
> > > crossed and that the signal and frame ground wires should be straight
> > > through. How about the timing wires? Should they be crossed or
> > > straight through?
> > >
> > > _________________________________
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> >
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