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Internal USB system board 2x5
connector
Pin
Signal
CAUTION:
Possible equipment damage.
The 2x5 system board connector can be
mated to either a wide 2x5 option cable
connector or a narrow 1x5 option cable
connector.
To prevent damage to the connectors,
always connect a narrow 1x5 option cable
connector to pins 1,3,5, and 7 only of the
2x5 system board connector (pin 9 is not
keyed on the system board connector).
5
USB6
6
USB7
7
GND
8
GND
9
(not keyed)
10
Not connected
Workstation processor, PCI, and rear
chassis fan connector
Pin
Signal
1
Ground
2
+12V
3
Tach
4
CMD
5
MT
Workstation FDD connector
Pin
Signal
Pin
Signal
1
Ground
18
FLP_DIR#
2
FLP_LOWDEN#
19
Ground
3
Tach
20
FLP_STEP#
4
FLP_WDO
21
Ground
5
MT
22
FLP_STEP#
6
Unused
23
Ground
7
Ground
24
FLP_WRTEN#
8
FLP_INDEX#
25
Ground
9
Ground
26
FLP_TRACK#
10
FLP_MOTOR#
27
Ground
11
Ground
28
FLP_WP#
12
Unused
29
Ground
13
Ground
30
FLP_RD_D#
14
FLP_SEL_A#
31
Ground
15
Ground
32
FLP_HD_SEL#
166 Appendix A Appendix A—Connector pins
ENWW