20 Feb
2013
20 Feb
'13
4:21 p.m.
On 02/20/2013 01:49 AM, mc68010 wrote:
Well battery is fine. It actually took all day to get
up to full voltage
from dead but, it seems fine now. Just for fun I checked the power switch
with the AC plug in and out.Power switch being a small circuit board in the
front of the machine that I haven't found a direct connection to the PS
from yet It has +12vdc at one throw with plug in. With the AC plug out it
has +5vdc on the same throw. Obviously coming off the battery. What that
means I don't know.
Yeah, I wish I had my system here with me and then at least we could
compare things.
When I first got it I did try it with the drives and
multibus boards
unplugged and it still didn't turn on.
Rats.
It uses a DB15 for the console port which is odd. I
assumed it was just a
serial port.
It is RS232, NCR just used a 15 pin connector. I'm pretty sure that it
expects 9600,7E1 and the pinout is as follows:
1 TxD
2 RTS
3 DSR
4 DTR
9 RxD
10 CTS
11 sig gnd
12 DCD
I say "pretty sure" because that came from an old email, and in a follow-up
message to the guy who wrote it I mentioned that someone else had given me
different pinout information. Still, RS232 is pretty robust, so if it's
wrong then it shouldn't harm anything :-)
Do they turn on without that console cable installed ?
I'm almost certain that they do; it was a while before I got a console
hooked up to my machine and I'm pretty sure that I fired it up at the place
I got it from (disks disconnected) to make sure that it wasn't totally dead
before I took the trouble to haul it home.
cheers
Jules