
Installing and Replacing Desktop Board Components
Consumer IR (CIR) Headers
The Desktop Board has two CIR headers: the input or receiver header (Figure 20, F) and the output or emitter header (Figure 20, 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
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 9 shows the pin assignments and signal names for the front panel CIR receiver (input) header and Table 10 shows the pin assignments and signal names for the back panel CIR emitter (output) header.
Table 9. Front Panel CIR Receiver (Input) Header Signal Names
Pin | Signal Name |
|
|
1 | Ground |
3No Connection
5+5 V Standby
7Key (no pin)
Pin | Signal Name |
|
|
2 | LED |
|
|
4 | |
|
|
6 | Vcc |
|
|
8 | CIR Input |
|
|
Table 10. Back Panel CIR Header Emitter (Output) Header Signal Names
Pin | Signal Name |
|
|
1 | Emitter Out 1 |
|
|
3 | Ground |
|
|
5 | Jack Detect 1 |
|
|
Pin | Signal Name |
2Emitter Out 2
4Key (no pin)
6Jack Detect 2
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