On Wed, Oct 11, 2000 at 01:38:04AM +0200, Jan-Benedict Glaw wrote:
> I've got a DECStation 5000/120 and tried to start some hacking,
> but no success: I can read everything the box outputs to its
> serial lines, but anything I type into my minicom seems to end
> up in /dev/null... The cable is okay, but what could be wrong
> instead? Any hints?
Well known effect :-)
I have a "normal" 7-wire-nullmodem cable that works fine when connecting
my vt420 to my Linux PC and running a getty on the port, ist also works
fine when connecting the vt420 to the DECstations serial console port, but
I have the same problem as you when connecting the DECstation to the PC
and running a terminal emulation program on the PC.
The soloution: use a 3-wire-nullmodem cable and inside each of the
connectors connect RTS-CTS and DTR-DSR-DCD.
This should look like this:
DECstation PC
GND ---------------- GND
RxD ---------------- TxD
TxD ---------------- RxD
RTS -+ +- RTS
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CTS -+ +- CTS
DTR-+ +- DTR
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DSR-+ +- DSR
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DCD-+ +- DCD
Viel Spass beim Loeten :-).
Greetings,
Karsten
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