Maxtor D740X-6L 20.0 AT Product Manual page 24

Installation
CS DS PK
0 0 X
1 0 X
0 1 X
1 0 X
1 1 X
Note: In Table 3-1, a 0 indicates that the jumper is removed, a 1 indi-
     % C D N G 5 G N G E V % 5 , W O R G T
When a Maxtor D740X-6L 20.0/40.0/60.0/80.0GB AT hard disk drive and
another ATA hard disk drive are daisy-chained together, they can be configured as
Master or Slave either by the CS or DS jumpers. To configure the drive as a Master
or Slave with the CS feature, the CS jumper is installed (1). The drive's position on
the 80 conductor Ultra ATA data cable then determines whether the drive is a
Master (Device 0) or a Slave (Device 1). If the drive is connected to the end of the
Ultra (cable Select) data cable the drive is a Master. If the drive is connected to the
middle connection it is set as a Slave.
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 D740X-6L 20.0/40.0/60.0/80.0GB 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.
3-6 Maxtor D740X-6L 20.0/40.0/60.0/80.0GB AT
6 C D N G   AT Jumper Options
PIN 28
X Drive is configured as a slave
Gnd Drive is configured as Master (Device 0) when
attached to the end of a 80 conductor Ultra ATA
cable
X Drive is configured as a Master
Open Drive is configured as a Slave (Device 1) when
attached to the middle of a 80 conductor Ultra ATA
cable
X Drive is configured as a Master with an attached slave
that does not support DASP
cates that the jumper is installed, and an X indicates that the
jumper setting does not matter.
DESCRIPTION