Intel Desktop Board DX79TO Product Guide
Front Panel Audio Header
Figure 20, A shows the location of the front panel audio header. Table 6 shows the pin assignments and signal names for the front panel audio header.
Table 6. Front Panel Audio Header Signal Names
Pin | Signal Name | Pin | Signal Name |
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1 | PORT 1L | 2 | GND |
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3 | PORT 1R | 4 | PRESENCE# |
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5 | PORT 2R | 6 | SENSE1_RETURN |
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7 | SENSE_SEND | 8 | KEY (no pin) |
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9 | PORT 2L | 10 | SENSE2_RETURN |
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Chassis Intrusion Header
Figure 20, B 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.
Table 7 shows the pin assignments and signal names for the chassis intrusion header.
Table 7. Chassis Intrusion Header Signal Names
Pin Description
1Intruder
2Ground
IEEE 1394a Header
Figure 20, C shows the location of the IEEE 1394a header. Table 8 shows the pin assignments and signal names for the IEEE 1394a header.
Table 8. IEEE 1394a Header Signal Names
Pin | Signal Name |
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1 | TPA1+ |
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3 | Ground |
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5 | TPA2+ |
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7 | +12 V |
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9 | Key (no pin) |
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Pin | Signal Name |
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2 | TPA1- |
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4 | Ground |
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6 | TPA2- |
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8+12 V
10Ground
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