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Attaching a
Macintosh
Computer
XPAC module shown
Before you connect your Mac to an XP4000 Series system, you'll need to
configure and install your computer interface module. Both the XPAC and
XPAB modules have one set of jumpers and one DIP switch to configure. Follow
the steps below to configure each XPAC or XPAB module that will be connected
to a Macintosh computer.
Configuring your computer interface (XPAC/XPAB) modules
Configuring the Jumpers
The jumpers on the XPAC/XPAB module are used to control the video
selection settings. The default is IBM VGA/SVGA video.
DIP-SWITCH
ASSEMBLY
Orient your XPAC/XPAB module so that the 44-pin connector is to your right.
Locate the jumpers on the lower right corner of the board. The XPAC will
contain JP1 - JP6; the XPAB will only have jumpers JP1 - JP5. Configure your
XPAB module as you would an XPAC, ignoring all references to JP6. Use the
diagrams below to configure the video settings for the Macintosh computer
that you will attach to this computer interface module. You may wish to
consult your computer or video card reference manual for the video rates
supported by your computer.
2 3
1
1
2
3
4
5
6
*
APPLE
STANDARD VGA (HS,VS)
2 3
1
1
2
3
4
5
6
*
APPLE 21"
1
2 3
1
2
3
4
5
6
*
APPLE 19" COLOR (HS, VS)
APPLE 19" COLOR (CS)
* XPAC Modules only
44-PIN CONNECTOR
VIDEO
JUMPERS
2 3
1
1
2
3
4
5
6
*
*
APPLE
APPLE HIRES (HS, VS)
STANDARD VGA (CS)
2 3
1
1
2
3
4
5
6
*
*
APPLE
COLOR RGB (HS, VS)
COLOR RGB (CS)
1
2 3
1
2
3
4
5
6
*
*
APPLE 16" COLOR
HS = horizontal sync, VS = vertical sync, CS = composite sync
26
IBM VGA/SVGA
(default)
2 3
1
1
1
2
2
3
3
4
4
5
5
6
6
*
APPLE HIRES (CS)
2 3
1
1
1
2
2
3
3
4
4
5
5
6
6
*
APPLE PORTRAIT
APPLE
1
2 3
1
1
2
2
3
3
4
4
5
5
6
6
*
APPLE 16" COLOR (CS)
(HS,VS)
2 3
1
2 3
1
1
2 3
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