T-1s use pins 1&2 and 4&5. So make a special crossover cable: 1 to 4, 2 to
5, 4 to 1, 5 to 2. You can use a pair of RJ-45 jacks for the crossover using
some spare wire - then use regular patch cables from the jacks to the
routers.
Side note: 56k uses pins 1&2 and 7&8. A console rollover cable works fine
for that.
> -----Original Message-----
> From: anthony moore [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, July 12, 2001 10:13 AM
> To: [EMAIL PROTECTED]
> Subject: connecting T1 modules [7:12139]
>
>
> Anyone know what kind of cable to use to connect two T1
> modules? I have a
> 2525 with the Fractional/full T1 module(RJ45) and a 2621 with the
> WIC-1DSU-T1 module(RJ45). What kind of cable can I use to
> connect these
> momdules?
>
> Thanks
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