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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