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System Overview 1-13
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Figures 1-11 through 1-18 and Tables 1-4 and 1-5 describe the connectors on
the PSPB.
The power-supply output voltages can be measured at the back (wire side) of
the connectors without disconnecting them. In Figures 1-11 through 1-15,
voltages for the PSPB PWR
n
connectors are shown as measured at the
system board; voltages for the PSPB FD connector are shown as measured
at the PSPB; and voltages for the PSPB HD_B/P connector are shown as
measured at the SCSI backplane.
PWR
n
System board power cable connectors
HD_B/P SCSI-backplane-board power cable connector
FAN Fan power connector
FD diskette/CD-ROM drive power connector
system-board power
cable connector
(PWR2)
system-board power
cable connector
(PWR1)
system-board power
cable connector
(PWR3)
SCSI-backplane-board
power cable connector
(HD_B/P)
power supply
connector (P3)
cooling-fan
power connector
(FAN)
power supply
connector (P1)
power supply
connector (P2)
diskette and
CD-ROM drive power
connector (FD)
diagnostics
connector for factory
use only
AC input connector
(on bottom of board)