HP Xw4550 HP xw4550 Workstation - Service and Technical Reference Guide - Page 148

Floppy diskette drive, Internal USB system board 2x5 connector

Page 148 highlights

Internal USB system board 2x5 connector Pin The 2x5 internal USB system board connector can be mated to 1 either a wide 2x5 option cable connector or a narrow 1x5 option cable connector. 2 3 4 5 CAUTION: Possible equipment damage. Always key all option connectors to the blank pin 9 position to prevent damage to connectors and equipment. Always connect a narrow 1x5 option cable connector to pins 1,3,5, and 7 only. 6 7 8 9 10 Signal +5V +5V USB6# USB7# USB6 USB7 GND GND (pin not keyed) (not connected) System fan (rear chassis), processor fan, and PCI fan (front Pin chassis) system board connectors 1 2 3 4 Signal Ground +12V Tach CMD Floppy (diskette) drive Pin Signal Pin 1 Ground 18 2 FLP_LOWDEN# 19 3 unused 20 4 FLP_WDO 21 5 unused 22 6 unused 23 7 Ground 24 8 FLP_INDEX# 25 9 Ground 26 10 FLP_MOTOR# 27 Signal FLP_DIR# Ground FLP_STEP# Ground FLP_WR_D# Ground FLP_WRTEN# Ground FLP_TRACK# Ground 140 Appendix A Appendix A-Workstation connector pins ENWW

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Internal USB system board 2x5 connector
Pin
Signal
The 2x5 internal USB system board connector can be mated to
either a wide 2x5 option cable connector or a narrow 1x5 option
cable connector.
CAUTION:
Possible equipment damage.
Always key all option connectors to the blank pin 9 position to
prevent damage to connectors and equipment. Always connect a
narrow 1x5 option cable connector to pins 1,3,5, and 7 only.
1
+5V
2
+5V
3
USB6#
4
USB7#
5
USB6
6
USB7
7
GND
8
GND
9
(pin not keyed)
10
(not connected)
System fan (rear chassis), processor fan, and PCI fan (front
chassis) system board connectors
Pin
Signal
1
Ground
2
+12V
3
Tach
4
CMD
Floppy (diskette) drive
Pin
Signal
Pin
Signal
1
Ground
18
FLP_DIR#
2
FLP_LOWDEN#
19
Ground
3
unused
20
FLP_STEP#
4
FLP_WDO
21
Ground
5
unused
22
FLP_WR_D#
6
unused
23
Ground
7
Ground
24
FLP_WRTEN#
8
FLP_INDEX#
25
Ground
9
Ground
26
FLP_TRACK#
10
FLP_MOTOR#
27
Ground
140
Appendix A
Appendix A—Workstation connector pins
ENWW