System Overview
1-13
Figure 1-10. DC Power Connector PWRSCSI (DDBP)
1
Wires 1 through 4 are connected to FD1 and FD2.
2
Wires 5 through 8 are connected to FD3 and FD4
.
Figure 1-11. DC Power Connector PWRFD (FD1–FD4)
The power-supply paralleling board (see Figure 1-12) connects the power from
two power supplies together in a redundant configuration, monitors the inputs
and outputs of each power supply, and determines when to turn on/off each
power supply. With the power-supply paralleling board, the two power supplies
1
2
3
4
5
6
7
+5 VDC (red)
+12 VDC (yellow)
+5 VDC (red)
+12 VDC (yellow)
PWRSCSI
(DDBP)
8
9
10
11 12 13 14
common (black)
common (black)
common (black)
common (black)
common (black)
common (black)
+12 VDC (yellow)
+5 VDC (red)
+12 VDC (yellow)
common (black)
2
3
4
1
+5 VDC (red)
PWRFD
(FD1–FD4)
1
5
6
7
8
2
+12 VDC (yellow)
common (black)
common (black)
+12 VDC (yellow)
common (black)
common (black)
+5 VDC (red)
