Intel D2500HN Product Guide for Intel Desktop Board D2500HN - Page 32
Connecting to the Serial Header, Connecting to the Piezoelectric Speaker Header
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Intel Desktop Board D2500HN Product Guide Connecting to the Serial Header Figure 9, C shows the location of the serial header. Table 8 shows the pin assignments and signal names for the serial header. Table 8. Serial Port Header Pin Signal Name 1 DCD (Data Carrier Detect) 3 TXD# (Transmit Data) 5 Ground 7 RTS (Request To Send) 9 RI (Ring Indicator) Pin Signal Name 2 RXD# (Receive Data) 4 DTR (Data Terminal Ready) 6 DSR (Data Set Ready) 8 CTS (Clear To Send) 10 Key (no pin) Connecting to the Piezoelectric Speaker Header Figure 9, D shows the location of the piezoelectric speaker header. Table 9 shows the pin assignments for the piezoelectric speaker header. Table 9. Piezoelectric Speaker Header Pin Signal Name 1 + 5 VDC 2 Key (no pin) 3 Key (no pin) 4 SPKR 32