Intel DX79SI Product Guide for Intel Desktop Board DX79SI - Page 51

IEEE 1394a Header, USB 3.0 Connector, Table 9. IEEE 1394a Header Signal Names

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Installing and Replacing Desktop Board Components IEEE 1394a Header Figure 22, D shows the location of the IEEE 1394a header. Table 9 shows the pin assignments and signal names for the IEEE 1394a header. Table 9. IEEE 1394a Header Signal Names Pin Signal Name 1 TPA1+ 3 Ground 5 TPA2+ 7 +12 V 9 Key (no pin) Pin Signal Name 2 TPA1- 4 Ground 6 TPA2- 8 +12 V 10 Ground USB 3.0 Connector Figure 22, E shows the location of the USB 3.0 connector. Table 10 shows the pin assignments and signal names for the USB 3.0 connector. The USB 3.0 connector can be used to connect two USB devices. Table 10. USB 3.0 Connector Pin Signal Name 20 Key (no pin) 19 Vbus 18 IntA_P2_SSRX− 17 IntA_P2_SSRX+ 16 Ground 15 IntA_P2_SSTX− 14 IntA_P2_SSTX+ 13 Ground 12 IntA_P2_D− 11 IntA_P2_D+ Pin Signal Name 1 Vbus 2 IntA_P1_SSRX− 3 IntA_P1_SSRX+ 4 Ground 5 IntA_P1_SSTX− 6 IntA_P1_SSTX+ 7 Ground 8 IntA_P1_D− 9 IntA_P1_D+ 10 ID 51

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Installing and Replacing Desktop Board Components
51
IEEE 1394a Header
Figure 22, D shows the location of the IEEE 1394a header.
Table 9 shows the pin
assignments and signal names for the IEEE 1394a header.
Table 9. IEEE 1394a Header Signal Names
Pin
Signal Name
Pin
Signal Name
1
TPA1+
2
TPA1-
3
Ground
4
Ground
5
TPA2+
6
TPA2-
7
+12 V
8
+12 V
9
Key (no pin)
10
Ground
USB 3.0 Connector
Figure 22, E shows the location of the USB 3.0 connector.
Table 10 shows the pin
assignments and signal names for the USB 3.0 connector.
The USB 3.0 connector can
be used to connect two USB devices.
Table 10. USB 3.0 Connector
Pin
Signal Name
Pin
Signal Name
20
Key (no pin)
1
Vbus
19
Vbus
2
IntA_P1_SSRX
−
18
IntA_P2_SSRX
−
3
IntA_P1_SSRX+
17
IntA_P2_SSRX+
4
Ground
16
Ground
5
IntA_P1_SSTX
−
15
IntA_P2_SSTX
−
6
IntA_P1_SSTX+
14
IntA_P2_SSTX+
7
Ground
13
Ground
8
IntA_P1_D
−
12
IntA_P2_D
−
9
IntA_P1_D+
11
IntA_P2_D+
10
ID