Intel Desktop Board DQ67SW Product Guide
52
Internal Mono Speaker Header
The internal mono speaker header is shown in Figure 21, C. Table 8 shows the pin
assignments and signal names for the internal mono speaker header.
Table 8. Internal Mono Speaker Header
Pin Signal Name
1 −
2 +
Serial Header
Figure 21, D shows the location of the serial header. Table 9 shows the pin
assignments and signal names for the serial header.
Table 9. Serial Port Header
Pin Signal Name Pin Signal Name
1 DCD (Data Carrier Detect) 2 RXD# (Receive Data)
3 TXD# (Transmit Data) 4 DTR (Data Terminal Ready)
5 Ground 6 DSR (Data Set Ready)
7 RTS (Request To Send) 8 CTS (Clear To Send)
9 RI (Ring Indicator) 10 Key (no pin)
Chassis Intrusion Header
Figure 21, E 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. This switch should be in the open position when the chassis cover is
installed and closed when the cover is removed.
Table 10 shows the pin assignments and
signal names for the chassis intrusion header.
Table 10. Chassis Intrusion Header Signal Names
Pin Description
1 Intruder#
2 Ground
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