Le mercredi 27 janvier 2021 à 08:20 -0700, Diana Eichert a écrit : > On Tue, Jan 26, 2021 at 5:30 AM Stuart Longland > <[email protected]> wrote: > > > > On 25/1/21 11:40 pm, Bastien Durel wrote: > > > Hello, > > > > > > Short-circuit pins 3-5 using my DB9 cable as Mihai Popescu > > > said[1] > > > worked. > > > Alas, this setup prevent to plug-in the cable on the other side > > > ^^ > > > > > > But this confirm there is an hardware problem. > > The issue is the input RCV line is floating which causes spurious > characters, a > properly designed circuit should not have this issue. > > You really should insert a high ohm valu resistor in the path between > RCV and GND, > this would allow you to build a serial cable that still functions. > Hello again,
I bought a pair of these : https://corrin.geekwu.org/owncloud/index.php/s/3Bci6SRDjR9gPgs and tried to put a 1kΩ resistor between pins 3 and 5, then reboot; but the router hanged again. I tried with pins 1-3 to make sure it was not a male/female numbering problem, but with no more success :( Worse : it did not boot with a wire between ports 3-5 (nor 1-5) Is there some other wiring to do to get the plug working ? (I tried to make it work before I plug actual cable, but maybe it's not possible ?) Thanks, PS: is 1kΩ enough ? I don't know if it's actually "high value" -- Bastien
