Usb 2.0 Headers; Serial Port Header; Serial Port Header Signal Names - Intel BOXDG41MJ Product Manual

Intel Desktop Board DG41MJ Product Guide

USB 2.0 Headers

Before connecting to the USB 2.0 headers, observe the precautions in "Before You
Begin" on page 23. See Figure 18, C on page 38 for the location of the USB 2.0
headers. Table 8 shows the pin assignments for each USB 2.0 header. Each USB
header can be used to connect two USB devices.
Table 8. USB 2.0 Header Signal Names
Pin Signal Name
1 Power (+5 V)
3 D-
5 D+
7 Ground
9 Key
Note: USB ports may be assigned as needed.
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.

Serial Port Header

See Figure 18, D on page 38 for the location of the serial port header. Table 9 shows
the pin assignments for the serial port header.
Table 9. Serial Port Header Signal Names
Pin Signal Name
1 DCD
3 TXD#
5 Ground
7 RTS
9 RI
40
USB Port A USB Port B
Pin Signal Name
2 Power (+5 V)
4 D-
6 D+
8 Ground
10 No Connection
Pin Signal Name
2 RXD#
4 DTR
6 DSR
8 CTS
10 No Connection