Ps/2 connector, Usb connectors – Dell Inspiron 2500 User Manual
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PS/2 Connector
Use the 6-hole, miniature DIN PS/2 connector to attach PS/2-compatible devices such as a mouse, keyboard, or external numeric keypad. If you reconfigure
your hardware, you may need pin number and signal information for the PS/2 connector.
USB Connectors
Use the USB connectors to attach one or more USB devices, such as a mouse, to the computer. USB is a peripheral standard that enables automatic detection
of USB-compliant peripheral devices.
4
PD2
I/O
Printer data bit 2
5
PD3
I/O
Printer data bit 3
6
PD4
I/O
Printer data bit 4
7
PD5
I/O
Printer data bit 5
8
PD6
I/O
Printer data bit 6
9
PD7
I/O
Printer data bit 7
10
ACK#
I
Acknowledge
11
BUSY
I
Busy
12
P E
I
Paper end
13
SLCT
I
Select
14
AFD#
O
Automatic feed
15
ERR#
I
Error
16
INIT#
O
Initialize printer
17
SLIN#
O
Select in
18-25
N/A
N/A
Ground signal
Shell
N/A
N/A
Frame ground
Pin
Signal
I/O
Definition
1
EXK_MSDATA
I/O
External keyboard/keypad/mouse data
2
KBD_DATA
I
Keyboard data
3
GND
N/A
Signal ground
4
EXK_MSPWR
N/A
External keyboard/keypad/mouse supply voltage
5
EXK_MSCLK
I/O
External keyboard/keypad/mouse clock
6
KBD_CLK
I
Keyboard clock
Shell
N/A
N/A
Chassis ground