Intel BOXDG45FC Product Guide - Page 42

Intel Desktop Board DG45FC Product Guide Front Panel HD Audio Header Figure 17, A shows the location of the front panel audio header. Table 5 shows the pin assignments for the front panel audio header. Table 5. Front Panel Audio Header Signal Names Pin Signal Name 1 PORT 1L 3 PORT 1R Pin Signal Name 2 GND 4 PRESENCE# 5 PORT 2R 6 SENSE1_RETURN 7 SENSE_SEND 9 PORT 2L 8 KEY (no pin) 10 SENSE2_RETURN To install the cable that connects your front panel audio solution to the front panel audio header, follow these steps: 1. Observe the precautions in "Before You Begin" on page 27. 2. Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord. 3. Remove the cover. 4. Install a correctly keyed and shielded front panel audio cable. Chassis Intrusion Header Figure 17, B on page 41 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 6 shows the pin assignments for the chassis intrusion header. Table 6. Chassis Intrusion Header Signal Names Pin Description 1 Intruder 2 Ground Consumer IR (CIR) Headers The Desktop Board has two CIR headers: the receiver or input header (Figure 17, F) and the output or emitter header (Figure 17, C). 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. 42