Hey guys and gals,
I have tried and failed to get a successful connection between my uvax II and a pc rs-232
serial port. The H8751-B didn't seem to work, so I pulled it off and wired my own
MMJ-DB9 connector. I have tested the MMJ cable, and it works flawlessly.
For my connectors I have followed "The Cable" documentation at
http://www.mcmanis.com/chuck/computers/vaxen/panels.htm (chucks house of vax), under
"The MicroVAX II" section but it hasn't helped. I have tested the MMJ-DB9
connection from my uvax III consoles and from the microvax 3100 and it works fine, so I
think the PC side is working correctly.
The MMJ-DB9 on the pc side is
DB-9 Pin Color Purpose
1 Pin 4 & 6
2 Yellow Transmit
3 Black Receive
4 Pin 1 & 6
5 Red Signal GND
6 Pin 1 & 4
7 N/A
8 N/A
9 N/A
When I toned out the H8571-B connector and this is what it toned out to (using a straight
MMJ cable out of the connector:
H8571-B Pinout
DB-9 Pin Color Purpose
1 N/A
2 Black Transmit (Tx+)
3 Yellow Receive (Rx+)
4 White DSR
5 N/A
6 Blue DTR
7 Red Transmit Ground (Tx-)
8 Pin 8
9 Pin 9
Any idea what pinouts I should use for the H8671-B -> PC connector cable should be?
This situation is driving me nuts.
Kevin