Hi,
Long time lurker first time poster (I think).
I'm wondering if anyone could help me figure out the pin-out
for a DB9 to DB25 serial cable.
A friend has this old plotter, from late 90's that has DB25 serial
input. I'm trying to hook it up to a DB9, actually USB -> DB9 ->DB25.
(the USB to serial outputs +-10v). I found a user manual
and a service manual. I got the Tx and Rx pins figured out, but I can't
figure out the pins for the flow control.
Long time lurker first time poster (I think).
I'm wondering if anyone could help me figure out the pin-out
for a DB9 to DB25 serial cable.
A friend has this old plotter, from late 90's that has DB25 serial
input. I'm trying to hook it up to a DB9, actually USB -> DB9 ->DB25.
(the USB to serial outputs +-10v). I found a user manual
and a service manual. I got the Tx and Rx pins figured out, but I can't
figure out the pins for the flow control.
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