Intel DG33FB Product Guide - Page 48

Connecting to the Front Panel Header, Connecting to the USB 2.0 Headers, Table 9. Front Panel Header

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Intel Desktop Board DG33FB Product Guide Connecting to the Front Panel Header Before connecting to the front panel header, observe the precautions in "Before You Begin" on page 25. See Figure 23, F for the location of the multi-colored front panel header. Table 9 shows the pin assignments for the front panel header. Table 9. Front Panel Header Pin Description In/Out Pin Description Hard Drive Activity LED Power LED 1 Hard disk LED pull-up to +5 V Out 2 Front panel green LED 3 Hard disk active LED Out 4 Front panel yellow LED Reset Switch On/Off Switch 5 Ground 6 Power switch 7 Reset switch In 8 Ground Power Not Connected 9 Power Out 10 No pin In/Out Out Out In Connecting to the USB 2.0 Headers Before connecting to the USB 2.0 headers, observe the precautions in "Before You Begin" on page 25. See Figure 23, G for the location of the three USB 2.0 headers. Table 10 shows the pin assignments for each USB 2.0 header. Each USB header can be used to connect two USB devices. Table 10. USB 2.0 Header Signal Names USB Port A Pin Signal Name Pin 1 Power (+5 V) 2 3 D- 4 5 D+ 6 7 Ground 8 9 Key 10 Note: USB ports may be assigned as needed. USB Port B Signal Name Power (+5 V) DD+ Ground No Connection 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. 48

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Intel Desktop Board DG33FB Product Guide
48
Connecting to the Front Panel Header
Before connecting to the front panel header, observe the precautions in "Before You
Begin" on page 25.
See Figure 23, F for the location of the multi-colored front panel
header.
Table 9 shows the pin assignments for the front panel header.
Table 9. Front Panel Header
Pin
Description
In/Out Pin Description
In/Out
Hard Drive Activity LED
Power LED
1
Hard disk LED pull-up to +5 V Out
2
Front panel green LED
Out
3
Hard disk active LED
Out
4
Front panel yellow LED
Out
Reset Switch
On/Off Switch
5
Ground
6
Power switch
In
7
Reset switch
In
8
Ground
Power
Not Connected
9
Power
Out
10
No pin
Connecting to the USB 2.0 Headers
Before connecting to the USB 2.0 headers, observe the precautions in "Before You
Begin" on page 25.
See Figure 23, G for the location of the three USB 2.0 headers.
Table 10 shows the pin assignments for each USB 2.0 header.
Each USB header can
be used to connect two USB devices.
Table 10. 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.