Subject: Re: MicroVAX 3400 questions.
To: lpt1 <lpt1@cyber-wizard.com>
From: Erno Palonheimo <esp@cc.hut.fi>
List: port-vax
Date: 01/21/2001 21:23:51
lpt1 <lpt1@cyber-wizard.com> writes:
> Well, I've got a 3400 up and running here, and I've done some work on a few
> of them around town. The first thing I would check is your handshaking,
> make sure you've got hardware handshaking on for your terminal/pc, and the
> correct wiring to umm...err...equiv to cts on the vax..can't remember what
> they call it now. But, all the 3400's I've seen insist the line be high for
> it to send.
I'm using a DEC VT320 terminal here. I've tried options DEC-423, data
wires only & DEC-423, modem control. Neither works. I lowered the
speed to 2400bps just in case my cable is too crappy - no success,
either. I even pulled all the modules out except for the "load
module" (what's this?) and processor & memory modules. The system has
two DSSI disks but the DSSI terminator seems to be missing. Any help
is appreciated. I've tried two different home-brew cables, two
plier-edited phone line cables, two different terminals and even two
different VAXes (I got two of them for very cheap :-).
> Second thing I'd check is the thumbwheel switch behind the bulkhead for the
> CPU, I've seen several boxes where it was upped to 19200 baud.
Done already...
> I've got a nice little RS-232 LED box I leave in place on my cable, I'm
> using a 'clipped' rj12 and every once in a while, it decides to work it's
> way loose.
I made the cable myself - two MMJ connectors and the pin-out I explained.
--
Erno Palonheimo ; esp@iki.fi ; http://iki.fi/esp/ ; +358505604765