iainnitro wrote:I can't answer that, other than to say you only need one nulling device in the connection. Additional ones will roll the signal back to a straight-through path.
Just for clarification: Are the blue Cisco serial management cables (these come with Cisco Routers for Serial Management) already "null modem" cables?
I hope this makes my question crystal clear. I already have a null modem adapter, but it is 25 pin, though I think I can just gender change it to go in between two 9 pin connectors.