12 Jun
2019
12 Jun
'19
10:01 p.m.
On Jun 12, 2019, at 10:47 AM, shadoooo via cctech wrote:
maybe there's a short between RXD and TXD, or
possibly the GND is
unconnected...
This could cause an echo on the cable, and while the console is echoing
too, this give an infinite repetition, only ended by the limited console
buffer size...
I think you got closest. There is apparently something problematic about the way modem
control is wired through my cables. While I was arsing around, grasping at other sorts of
proverbial straws, I ended up with the same cable plugged in with the ends the opposite
way around and it started working fine. Swap ends again, the fault returns. I figured
since the VAX end doesn't use modem or flow control, it wouldn't matter how they
were or weren't wired. Wrong!
ok
bear.
--
until further notice