Internal 110 Cable; Device Power Connector; Table 4. Disk Drive Power Connector Pinout - Silicon Graphics DSS-1 Hardware Description

DSS-l and DSS-2 Hardware Description Product Overview
Internal
VO
Cable
Each of the disk drives has an I/O cable as shown in Figure II that carries the
signals inside the DSS-IIDSS-2 from the backplane PCB to the rear panel. The
pinout matches the pinout listed in Table 2.
Figure 11. Internal/fO Cable
I
I
•
Internal SCSI
Cable
Connectors (2)
Screws (4)
Backplane PCB
Rear Panel
Device Power Connector
HMM-199-A
The 4-pin power connector on the rear panel of each disk drive, inside the drive
canister, provides connections for the voltages listed in Table 4.
Table 4. Disk Drive Power Connector Pinout
Pin No. Voltage
1 +12 Vdc
2 + 12 Vdc return
3 +5 Vdc return
4 +5 Vdc
Silicon Graphics Proprietary
19