Maxtor D540X-4K Product Manual page 24

Installation
Once you install the CS jumper, the drive is configured as a Master or Slave by the
state of the Cable Select signal: pin 28 of the ATA bus connector. Please note that
pin 28 is a vendor-specific pin that Maxtor is using for a specific purpose. More than
one function is allocated to CS, according to the ATA CAM specification (see
reference to this specification in Chapter 1). If pin 28 is a 0 (grounded), the drive is
configured as a Master. If it is a 1 (high), the drive is configured as a Slave. In order
to configure two drives in a Master/Slave relationship using the CS jumper, you
need to use a cable that provides the proper signal level at pin 28 of the ATA bus
connector. This allows two drives to operate in a Master/Slave relationship
according to the drive cable placement.
The Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT hard disk drives are shipped
from the factory as a Master (Device 0 - CS jumper installed). To configure a drive
as a Slave (Device 1- DS scheme), the CS jumper must be removed. In this
configuration, the spare jumper removed from the CS position may be stored on the
PK jumper pins.
You can also daisy-chain two drives on the ATA bus interface by using their Drive
Select (DS) jumpers. To use the DS feature, the CS jumper must not be installed.
To configure a drive as the Master (Device 0), a jumper must be installed on the DS
pins.
Note: The order in which drives are connected in a daisy chain has no
In combination with the current DS or CS jumper settings, the Slave Present (SP)
jumper can be implemented if necessary as follows:
Note: The CS position doubles as the Slave present on this drive.
• When the drive is configured as a Master
jumper installed, and the Cable Select signal is set to (0), adding an
additional jumper (both jumpers DS and CS now installed) will indicate
to the drive that a Slave drive is present. This Master with Slave Present
jumper configuration should be installed on the Master drive only if the
Slave drive does not use the Drive Active/Slave Present (DASP–) signal
to indicate its presence.
The PK position is used as a holding place for the jumper for a slave drive in systems
that do not support Cable Select. The pins used for the parking position are vendor
unique.
3-6 Maxtor D540X-4K 20.4/40.0/60.0/80.0 GB AT
significance.
DS jumper installed or CS
(