Intel DG41TX English Product Guide - Page 49
Serial Port Header, USB 2.0 Headers, Table 8. Serial Port Header Signal Names
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Installing and Replacing Desktop Board Components Serial Port Header See Figure 21, C for the location of the serial port header. Table 8 shows the pin assignments for the header. Table 8. Serial Port Header Signal Names Pin Signal Name 1 DCD 3 TXD# Pin Signal Name 2 RXD# 4 DTR 5 Ground 6 DSR 7 RTS 9 RI 8 CTS 10 No Connection USB 2.0 Headers See Figure 21, D for the location of the three USB 2.0 headers. Table 9 shows the pin assignments for each USB 2.0 header. Each USB header can be used to connect two USB devices. Table 9. USB 2.0 Header Signal Names USB Port A Pin Signal Name Pin 1 Power (+5 V) 2 3 D- 4 5 D+ 6 7 Ground 8 9 Key 10 Note: USB ports may be assigned as needed. USB Port B Signal Name Power (+5 V) DD+ Ground No Connection NOTE Computer systems that have an unshielded cable attached to a USB port might not meet FCC Class B requirements, even if no device or a low-speed USB device is attached to the cable. Use a shielded cable that meets the requirements for a full-speed USB device. 49