2 Mar
2022
2 Mar
'22
10:32 a.m.
and tried looping back pin 2 to pin 3
on each serial + modem port and typing some characters, but nothing shows
up in vterm.
? PDT-11/150 terminal and printer ports ports all require a high on pin
20, DTR, before they can send characters.? I've never used the modem
port on my PDT's but I suspect it requires the typical, pins 6, 8, and
20 wired together. Maybe you need to pull some of these pins high to
loop around?
--
Lee K. Gleason N5ZMR
Control-G Consultants
lee.gleason at comcast.net
10 Mar
10 Mar
4:53 p.m.
Thanks for the lead, Lee. Hooking up a proper cable with all the signals
got her talking!
On Wed, Mar 2, 2022 at 6:32 PM Lee Gleason via cctalk <cctalk at classiccmp.org>
wrote:
and tried
looping back pin 2 to pin 3
on each serial + modem port and typing some characters, but nothing shows
up in vterm.
PDT-11/150 terminal and printer ports ports all require a high on pin
20, DTR, before they can send characters. I've never used the modem
port on my PDT's but I suspect it requires the typical, pins 6, 8, and
20 wired together. Maybe you need to pull some of these pins high to
loop around?
--
Lee K. Gleason N5ZMR
Control-G Consultants
lee.gleason at comcast.net
783
days inactive
792
days old
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