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Section 2. Installing Your PlexWriter
Set the Drive's Mode Jumper
You specify your drive's Master or Slave setting before installing it. You do this by
changing the position of a jumper on the mode jumper block at the rear of the drive.
Your drive ships from our factory with its mode jumper set to operate the PlexWriter
as a Master. This will work in most custom system configurations. If your computer
is from a large OEM system manufacturer such as IBM, Hewlett Packard, Gateway
or Compaq, you will need to pay particular attention to whether the computer uses
the Cable Select scheme.
Changing the Mode Jumper on Your Internal PlexWriter
Drive
The PlexWriter drive arrives from the factory with its mode jumper set to Master. (A
function is ON if the jumper is installed and OFF if the jumper is removed.)
Figure 4: Factory Settings for Mode Jumper at the Rear of the Drive
Changing to a Master, Slave, or Cable Select
The Master/Slave setting for the drive is determined by the mode jumper. The
jumper is placed over one of the sets of mode pins. To change the drive from Master
to Slave or to Cable Select, you must move the jumper.
For example, to change the PlexWriter drive to be a Slave, move the jumper to the
right set of mode pins, leaving the other pins uncovered. To change the drive for
Cable Select, move the jumper to the set of mode pins just to the right of the DMA
jumper. (Usually, you leave the DMA jumper off.)
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PlexWriter 48/24/48A Installation and Users Manual
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