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- SUBJECT : DEConnect MMJ to COM Port
- DATE : 05/17/90
- FYI # : 052190sb
- OS VERSION : n/a
- REVISION : n/a
- SHELL VERSION : n/a
-
- GENERAL
- INFORMATION : Using a workstation as a Dec terminal through the
- serial port on the workstation. The DeConnect cables have the MMJ connector.
-
- PROBLEM : Correct Pin-out
-
- SOLUTION : The correct pin-out is:
-
- 25-pin serial 9-pin serial MMJ
-
- 3 2 5 Yellow
- 2 3 2 Black
- 7 5 1 White (Orange)
- 6 6 6 Blue (Brown)
- 4 7 3 & 4 Red & Green
-
-
- COMMENTS (Optional) : I have the 9 pin variant running in several
- places, not the 25 pin, but this is a standard 9 to 25 conversion
- to derive those. The MMJ cables were originally plugged into the
- backs of VT-320 CRTs. I had called DEC, and they gave me four
- posible pin outs, all of which did not work. The pin outs above
- took four hours to find and test completely. I know that DEC has
- these converters available pre-made, and I did try one, but again
- it did not work. Hope that this info is helpful to someone.
-
-
- (Check one)
-
- ( ) This information has been verified.
-
- (XX) This is useful information, but has not been verified.
-