> The VT50 comes (according to the peripherals handbook) with a standard 20 mA > interface, optional RS232 interface. So it sounds like it would be a matter > of finding > where the 20 mA connector on the VT50 is, and plugging into that. > > Interestingly enough, the VT52 is listed as supporting either kind of > interface, but only > one; "specify at time of order".
I suspect it's the same as the VT55 which I have. That terminal has a little daughterboard on the main logic board which contains the interface buffers etc. Mine is 20mA current loop, I assume the RS232 interface is a simialr daughterboard that replaces it.
