27 Mar
2020
27 Mar
'20
6:33 a.m.
Thanks everyone. I found a H8571-J adapter at eBay which should address
the PC serial port connection, as well as a "Unicom ETP-20028T-2" which
is a rather cute "AUI cable, transeiver and patch cord all-in-one". Both
should be here by April.
What is "jabber" ?
Also, the serial OPA0: runs at 9600/8/N/1?
On 3/26/20 10:04 PM, David Cooper wrote:
Actually, port 0 is the console port, depending on the
position of the s1 switch. Simply try both positions and one will work.
I only use my MicroVAXen and VAXstations with console terminals. I don't have any of
them hooked up to displays or mice or keyboards.
-----Original Message-----
From: owner-hecnet at Update.UU.SE <owner-hecnet at Update.UU.SE> On Behalf Of
Robert Armstrong
Sent: Thursday, March 26, 2020 6:56 PM
To: hecnet at Update.UU.SE
Subject: RE: [HECnet] Bringing up a MicroVAX 3100-80
--
Supratim Sanyal, W1XMT
39.19151 N, 77.23432 W
QCOCAL::SANYAL via HECnet
John H. Reinhardt <johnhreinhardt at
thereinhardts.org> wrote:
The OPA0: port is #3 (don't ask me why)
In the VAXstation (NOT MicroVAX),
starting with the 2000 family, serial ports 0 and 1 were for the keyboard and mouse. Port
2 was for the modem/communications, and port 3 was for the printer. VAXstations
didn't normally need a serial console, but if you had to connect one for some reason
the printer port was used. They couldn't use ports 0 or 1 because those were needed
for the keyboard/mouse, and I guess DEC decided they wanted to keep the modem port open.
The MicroVAX-2000 and 3000s are the same hardware as the corresponding VAXstation, and DEC
kept the serial port assignments the same.
Bob
This web site has just about everything you want to know about DEC modular wiring and
their parts (plus a lot more, check out the RS-232 pages)).
<https://www.lammertbies.nl/comm/cable/dec-mmj#bc16>