Dave McGuire <mcguire at neurotica.com> writes:
On 10/05/2013 11:45 AM, Johnny Billquist wrote:
I have two VaxStation 3100's that I bought some time back but didn't
have time to mess with until now.
Unlike my DEC 3000, the serial console is an MMJ port and not a DB9
serial port.
Does anyone have an excess or spare MMJ to DB9 adaptor, or know where
I can purchase an inexpensive one?
First of all, you are talking about a DE9, not a DB9 (surprising how
many don't know the correct name of that connector).
Fallout from DB-25 is likely to blame.
I educate whomever I can, but I have all but given up on the general
technical public understanding this.
Second, DEC often used a different pinout for a DE9 than IBM did, so you
might not be too happy with the adapter, depending on what you want in
the end.
THe early DEC 9-pin connectors were basically DB-25(pins 1 through 8) mapped
to DE-9(pins 1 through 8) and DB-25(pin 20) to DE-9(pin 9). Due to the more
ubiquitous IBM PeeCee pin pin configuration, DEC bagan producings DE-9s with
that pin configuration.
The 9-pin console connection on the back of a MicroVAX-II, for example, hused
the earlier configuration. The 9-pin console connection on the PCI bus Alpha
workstations, a later DEC product example, used the latter pin configuraiton.
In this case, the DEC-machine-facing side is the MMJ. (at least that
is my understanding)
I tired hooking up my multisync monitor I have hooked up to my DEC
3000, but I don't think the graphic card is set to a setting within
the monitor's range, as nothing shows up.
Do the DEC 3000 have a VGA port?
It does not.
And there were different graphics options too for the 3000s depending upon
the model. None, that I recall, were VGA.
--
VAXman- A Bored Certified VMS Kernel Mode Hacker VAXman(at)TMESIS(dot)ORG
Well I speak to machines with the voice of humanity.
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