Transmitter problem

[Grison A. <no...@fr...>]

Hello world,

    I made a serial transmitter-receiver, reception works but I can't
send IR commands. I use LIRC 0.6.2 (before I used the 0.6.1 version and
I had the same problem), wich is compiled with support for transmitter
and software generated carrier. I also use the rc program of xrc 0.5.3
pakage. When I send command with "rc SEND_ONCE myremote mybuton", the
program's output tells me "-SUCCESS-" but the DTR line (pin 4 of my
SUB-D 9) is always about -10 V. Under Windows, I use WinLIRC 0.6 and the
DTR line is about +10 V.
    I don't understand and I hope you can help me.

Thanks,

NONO. (no...@fr...)