Intel Desktop Board DP45SG Product Guide
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IEEE 1394a Header Figure 23, C shows the location of the IEEE 1394a header. Table 7 shows the pin
assignments and signal names for the IEEE 1394a header.
Table 7. 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
The Desktop Board has two CIR headers: the input or receiver header (Figure 23, E)
and the output or emitter header (Figure 23, D). The receiver header consists of a
filtered translated infrared input compliant with Microsoft CIR specifications and a
“learning” infrared input. The learning input is a high-pass input which the computer
can use to “learn” to speak the infrared communication language of other user
remotes. The emitter header consists of two output ports which the computer can use
to emulate “learned” infrared commands in order to control external electronic
hardware.
NOTE
The Consumer IR option must be enabled in the system BIOS before it can
function. Press <F2> at boot to enter the system BIOS, and go to Advanced >
Peripheral Configuration > Enhanced Consumer IR, and set this option to
Enabled.
Table 8 shows the pin assignments and signal names for the front panel CIR receiver
(input) header and Table 9 shows the pin assignments and signal names for the back
panel CIR emitter (output) header.
Table 8. Front Panel CIR Receiver (Input) Header Signal Names
Pin Signal Name Pin Signal Name
1 Ground 2 LED
3 No Connection 4 Learn-In
5 +5 V Standby 6 Vcc
7 Key (no pin) 8 CIR Input