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Front
4-pin
power connector
8-pin
master/slave jumper block
Front
Cable select
40-pin
ATA interface
connector
4
3
2
1
Circuit board
+5V
+5V return
+12V return
+12V
The drive is a master; a
slave is present that uses
only the PDIAG– signal.
2-pin
header
Drive activity
LED
(optional)
3-pin
power connector
(optional)
1
2
3
Keyway
Ground
+12V
+5V
The drive is a master;
a slave is present, but
it is not ATA-compatible.
The drive is a slave to an
ATA-compatible master.
The drive is a master;
the slave is either a
Medalist family drive or
another ATA-compatible
drive, or there is no slave.
2
1
4
3
6
5
8
7
Circuit
board
Pin 1
Spare jumper
across pin 1 and pin 3
+
–
Figure 1. Jumpers and connectors
Medalist XE Family Installation Guide, Rev. A 3