From: konopik@konopik.austin.ibm.com (Brad Konopik)
Newsgroups: comp.unix.aix,comp.sys.ibm.pc.hardware,comp.sys.ibm.ps2.hardware
Subject: Re: IBM monitor pinout
Keywords: ibm monitor vga
Date: 9 Oct 92 16:45:43 GMT
Organization: IBM AIX Porting Center, Austin

In article <stritzi.718552393@Physik.TU-Muenchen.DE> stritzi@Physik.TU-Muenchen.DE (Peer Stritzinger) writes:
>I'm trying to connect a few multisync monitors to IBM 220 machines (small
>System 6000). I found out that the monitor type is given by the way the
>cable is made. To be true, they have a few pins shortcut in the 15 PIN db
>connector.
>
>IBM does not supply these cables, since their monitors have the correct
>cables attached.
>
>How is the monitor type set? Which pins have to be connected.
>
>Which monitor type supports wich resolution (interlaces/non interlaced)?

I posted some info on this on 9 Sept., here it is again:

 *** WARNING: LONG ARTICLE ***

I'm not sure what your problem is.  Hopefully, the attached info will
help you (particularly the table that includes the Cable ID entries).

The jumper orientation is described in the: 
"7011 POWERstation and POWERserver Setup and Operator Guide"  (SA23-2664)

An approximation of the diagram on page 2-39:

            cable connector +-----+
  +-------------------------+     +-+
  |                                 |
  |                                 |
  |             [===] J0            |  where:  [==o] = 1
  |             [===] J1            |          [o==] = 0
  |             [===] J2            |
  +-+ card edge +-------------------+
    |___________|

on page 2-38 (with Cable ID info from an internal document inserted):

		 Cable   Display  
Display Type      ID     Jumper  Screen      Refresh  Horz Freq Pixel Freq
		3 2 1 0  0 1 2   Resolution  Freq (Hz) (KHz)     (MHz)
------------    -------  -----   ----------   ------   ------    ------ 
8507 Mono       1 0 0 1  1 1 1   1024x768      43.5     35.5      44.9
8508 Mono       0 1 1 1  1 1 1   1280x1024     67       70.8     128
8514 Color      1 0 1 0  1 1 1   1024x768      43.5     35.5      44.9
8515 Color      1 0 1 1  1 1 1   1024x768      43.5     35.5      44.9
8517 Color      H 0 1 0  1 1 1   1024x768      69.96    57.0      78
		H 0 1 0  0 1 1   1280x1024     51.48    56.5     103
5081-16" Color  0 1 0 0  1 1 1   1280x1024     60       63.4     111
6091-16" Color  0 1 0 0  1 1 1   1280x1024     60       63.4     111
		0 1 0 0  0 1 1   1024x768      75.8     61.1      86
6091-19" Color  0 1 0 0  1 1 1   1280x1024     60       63.4     111
		0 0 0 0  1 1 0   1280x1024     67       70.8     120
6091-23" Color  0 1 0 0  1 1 1   1280x1024     60       63.4     111
Other Displays  0 1 0 0  1 0 1   1280x1024     60       63.34    108
		0 1 0 0  0 0 1   1024x768      60       48.8      64
		0 0 0 0  0 0 0   1024x768      70.4     56.8      75

If the Cable ID is 0100, 0000, or H010, the setting of video jumpers
0 and 1 must be read to determine which monitor is attached.  Jumper
2 grounds one of the Cable ID bits such that an '0100' ID will turn
into a '0000' ID.  'H' means horizontal sync (the cable wraps the 
signal from the adapter back on this Cable ID line).

and a diagram of the video connector (connector end, not cable end):

   5       1       Pin Signal                 Pin Signal
_________________   01 Red                     09 Plug
\   o o o o o   /   02 Green                   10 GND (SYNC Return)
 \   o o o o o /    03 Blue                    11 ID Sense Bit 0
  \ o o o o o /     04 ID Sense Bit 2          12 ID Sense Bit 1
    ---------       05 GND (Monitor Self Test) 13 Horizontal Sync
   15      11       06 GND (Red Return)        14 Vertical Sync
                    07 GND (Green Return)      15 ID Sense Bit 3
                    08 GND (Blue Return)


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