Intel® Server Board X38ML
Connectors and Jumper Blocks
Revision 1.3
Intel order number E15331-006
109
Table 60. Internal 3-pin Serial B Port Pin-out (J4C1)
Signal Name
Pin
RXD
1
GND 2
TXD 3
7.5.5
USB Connector
The following table provides the pin-out for the dual external USB connectors. This connector is
stacked with an RJ-45 connector (connected to NIC1 LAN signals).
Table 61. USB Connectors Pin-out (JA2A1)
Pin
Signal Name
1 USB
PWR
2 USBP_1N
3 USBP_1P
4 GND
5 USB
PWR
6 USBP_0N
7 USBP_0P
8 GND
A header on the server board provides an option to support two additional USB connectors. The
pin-out of the header is detailed in the following table.
Table 62. Optional USB Connection Header Pin-out (J1B3)
Signal Name
Pin
Signal Name
Pin
USB PWR
1
USB PWR
2
USBP_5N 3 USBP_6N 4
USBP_5P 5 USBP_6P 6
GND 7
GND 8
KEY 9
OC# 10