Mouse Connector; Video Connector; Nic Connector; Usb Connectors - Dell Precision 400 User Manual

Table B-5. Pin Assignments for the Keyboard
Connector
Pin Signal
1 KBDATA
2 NC
3 GND
4 FVcc
5 KBCLK
6 NC
Shell N/A

Mouse Connector

If you reconfigure your hardware, you may need pin
number and signal information for the mouse connector.
Figure B-6 illustrates the pin numbers for the mouse
connector, and Table B-6 lists and defines the pin assign-
ments and interface signals for the mouse connector.
6
4
2
Figure B-6. Pin Numbers for the Mouse
Connector
B-8 Dell Workstation Midsize Systems User's Guide
I/O Definition
I/O Keyboard data
N/A No connection
N/A Signal ground
N/A Fused supply voltage
I/O Keyboard clock
N/A No connection
N/A Chassis ground
shell
5
3
1
Table B-6. Pin Assignments for the Mouse
Connector
Pin Signal I/O
1 MFDATA I/O
2 NC N/A
3 GND N/A
4 FVcc N/A
5 MFCLK I/O
6 NC N/A

Video Connector

For information on your video connector, see the manu-
facturer's specifications that accompanied your video
card.

NIC Connector

Your system contains an RJ45 connector (see Figure B-7)
on the back panel for attaching an unshielded twisted pair
(UTP) Ethernet cable, which is used in 10BASE-T and
100BASE-TX networks. The network interface control-
ler (NIC) provides all the functions normally handled by
a separate network expansion card. To connect your sys-
tem to and configure it for use on an Ethernet network,
see Chapter 5, "Using the Network Interface Controller."

Figure B-7. NIC Connector

USB Connectors

Your system contains two Universal Serial Bus (USB)
connectors for attaching USB-compliant devices. USB
devices are typically peripherals such as keyboards,
mice, printers, and computer speakers.
Definition
Mouse data
No connection
Signal ground
Fused supply voltage
Mouse clock
No connection