Intel Desktop Board DB43LD Product Guide
48
USB 2.0 Headers
See Figure 20, F for the location of the USB 2.0 headers. Table 12 shows the pin
assignments for each USB 2.0 header. Each USB header can be used to connect two
USB devices.
Table 12. USB 2.0 Header Signal Names
USB Port A
USB Port B
Pin
Signal Name
Pin
Signal Name
1
Power (+5 V)
2
Power (+5 V)
3 D-
4 D-
5 D+
6 D+
7 Ground
8 Ground
9 Key
10
No
Connection
Note: USB ports may be assigned as needed.
NOTE
Computer systems that have an unshielded cable attached to a USB port might not
meet FCC Class B requirements, even if no device or a low-speed USB device is
attached to the cable. Use a shielded cable that meets the requirements for a
full-speed USB device.
Chassis Intrusion Header
Figure 20, G on page 45 shows the location of the chassis intrusion header. This
header can be connected to a mechanical switch on the chassis to detect if the chassis
cover is removed. This switch should be in the open position when the chassis cover is
installed and closed when the cover is removed. Table 13 shows the pin assignments
for the chassis intrusion header.
Table 13. Chassis Intrusion Header Signal Names
Pin Description
1
Intruder
2 Ground
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