Here's the pinout of the not-quite RJ-45 connector on the vax
(In DECspeak it is known as an MMJ port.) Also, if you are intending to
hook a terminal to a VAXstation, you need to plug the terminal into the
port with the printer on it, not the two arrors. I'm not sure about a
2000, but I know this is the case on the 3100. It's 9600 8N1, if I
remember correctly.
On my 3100 I popped it open and installed a proper RS-232 DB-25
out the back soldered right onto the board. It was worth it, as I don't
have to worry about any silly adapters.
The following was actually sent to the Port-VAX NetBSD mailing
list by Gunnar Helliesen. This pinout is correct, as I this is what I have
used for my MMJ-based machines.
-----Attachment-----
Pin # Signal name CCIT # Mnemonic
-----------------------------------------------------------
1 Data Terminal Ready 108.2 DTR
2 Transmit Data 104 Tx
3 Signal Ground 102 SG
4 Receive Common --- RxC
5 Receive Data 103 Rx
6 Data Set Ready 107 DSR
When viewing the MMJ plug (i.e. the thingy attached to the end of the
cable) from below (opposite side of the "lip"), pin # 1 is the leftmost
pin. Like this:
--------------------
----------| DTR 1 -|
| Tx 2 -|
| SG 3 -|
| RxC 4 -|---
| Rx 5 -| |
----------| DSR 6 -| |
-----------------------
---End attach---
Enjoy,
Greg Linder
fluke(a)mcs.net