26 Feb
2018
26 Feb
'18
12:27 p.m.
On Feb 26, 2018, at 2:56 PM, Kurt Hamm <kurt at
hamm.me> wrote:
Yeah, the fact that the issue is intermittent (mostly not booting) is weird.
Just to be clear, You mentioned a 25 pin connector. My understanding is that the
console port is the printer port which is a 9 pin connector.
Sorry, you're right, my bad memory. The DB25 is at the other end of the standard DEC
cables, of course.
The relevant documentation is table 5-26, page 181 (5-131) of the PRO technical manual,
volume 1. "Terminal L" (pin 9) is the signal that says "this is a console
terminal" -- jumper that to signal ground (pin 7). That is also stated explicitly on
page 177 (5-127), third paragraph.
paul