Front Panel Audio Header; Chassis Intrusion Header; Ieee 1394A Header; Front Panel Audio Header Signal Names - Intel BLKDX79TO Product Manual

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
1 PORT 1L
3 PORT 1R
5 PORT 2R
7 SENSE_SEND
9 PORT 2L

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
1 Intruder
2 Ground

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
1 TPA1+
3 Ground
5 TPA2+
7 +12 V
9 Key (no pin)
48
Pin Signal Name
2 GND
4 PRESENCE#
6 SENSE1_RETURN
8 KEY (no pin)
10 SENSE2_RETURN
Pin Signal Name
2 TPA1-
4 Ground
6 TPA2-
8 +12 V
10 Ground