Maxtor ATLAS 10K III - Manual (Page 41)

Installation
Maxtor Atlas 10K III 3-15
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The configuration of J1 is different for the 68-pin and 80-pin SCSI variations.
Figure 3-7 shows the various connector styles.
(KIWTG   J1 Interface Connector Configurations
A M P
Pin 2
Pin 1 Pin 1
Pin 2 Pin 12
12-Pin Option
Connector
68-Pin SCSI-Bus Interface Connector
4-Pin DC
Power Connector
Pin 68
4 3 2 1
4.6±0.50
2.25±0.1
Pin 80
Pin 1 Pin 2
Bottom
Top
J1 SCSI (68-Pin)/DC (4-Pin)/Auxiliary (12-pin) Combination Connector
J1 SCSI (80-Pin) SCA Connector