URGENT! How to connect two 1602s directly via serial 56k csu/dsu 1

[denodave]

Does anyone out there know why Cisco is telling me that directly connecting two 1602s via their 56k csu/dsu ports won't work? Theoretically, since both integrated csu/dsu units produce similar digital signals they should be compatible regardless of the transmission medium...right?

For those interested, the pinout is 1-Trx, 2-Rcv, 7-Trx1, 8-Rcv1, all other pins unused.

So, theoretically, by crossing over the cabling it should work...right?

Please help URGENTLY, as I am in a real bind here! Thanks in advance!

 

[jkallen]

I don't know if that will work either. I suppose you tried setting them up this way? Is it possible that these interfaces are both setting clock speed since they have the CSU/DSU built in? If so, they probably won't connect. Let us know what you have tried so far and post a config so we know what the built -in interface looks like (I haven't seen one first-hand).

 

[wybnormal]

It works fine.. I've done this in my own lab.

Use the Cisco crossover console cable or build one. You need to set the DCE side up with clocking.

See the following link:

http://www.cisco.com/warp/public/471/75.html

MikeS
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