Specification; Electrical Interface Specification; Connectors - IBM DDRS-39130 - Ultrastar 9.1 GB Hard Drive Specifications

6.0 Specification

6.1 Electrical Interface Specification

6.1.1 Connectors

6.1.1.1 Power Connector
Power pin assignment of 80-pin (SCA-2) model is shown in 6.1.1.5, "SCSI Signal Connector (80-pin SE)"
on page 25 and 6.1.1.6, "SCSI Signal Connector (80-pin LVD)" on page 26.
Power connector of 50-pin models comply with the ANSI SCSI"A" connector specifications.
Power connector of 68-pin models comply with the ANSI SCSI"P" connector specifications.
Connector of 80-pin models comply with SFF-8046 Revision 2.1.
Power pin assignment of 50-pin and 68-pin models is as shown below.
Figure 14. Power Connector Pin Assignments
Copyright IBM Corp. 1997
Pin Voltage
1 + 12 V
2 G N D
3 G N D
4 + 5 V
21