VT340 Emulation

Paul Koning paulkoning at comcast.net
Thu Jun 24 11:06:40 CDT 2021

> On Jun 24, 2021, at 9:30 AM, Mark Matlock via cctalk <cctalk at classiccmp.org> wrote:
>> On Jun 24, 2021, at 1:25 AM, Zane Healy <healyzh at avanthar.com> wrote:
>> And all this time I thought that I wanted a VT525!  How much are the VTLAN40’s going for?
>> Zane 
> Zane,
>    If you explain to Mitch Miller at Keyways that you are a hobbyist, he will sell them for $400,
> at least he has in the past. He also has new and used LK411-AA keyboards. The last one I
> bought was $190 for new. That seems expensive but it has the round connector like a PC
> used to used for keyboard before USB. It might be possible to make an adapter to convert
> an old VT420 keyboard to the round connector if one knew how the pin outs for each mapped?

LK201s use 4800 baud UART interfacing.  PC keyboards with DIN connectors (PS-2) have a very different type of interface, nothing like a UART.  If the terminal you are talking about wants a PS-2 keyboard, as my VT501 does, you need a protocol translator.  It would essentially be the reverse of the LK201 emulator for PS-2 keyboards I released a while back, and possibly the same board could be used with a rather different program running on it.


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