Universal Serial Bus (Usb) Interface - Intel SR870BN4 - Server Platform - 0 MB RAM Product Manual

Universal Serial Bus (USB) Interface

The I/O riser card provides two sets of double-stacked USB ports. These built-in USB ports permit
the direct connection of four USB peripherals without an external hub. If more devices are
required, an external hub can be connected to any of the built-in USB ports.
Table 38. USB Connector Pinout
Port Pin
Designation Number
Port 1 A1
A2
A3
A4
Port 2 B1
B2
B3
B4
Port 3 P5
P6
P7
P8
Port 4 P1
P2
P3
P4
Note: 'x' indicates port in question.
258
Port 4
Port 2
Figure 131. USB Connectors
Signal
Name
Fused Voltage Controlled Current
(VCC)
USBPxM
USBPxP
GND
Fused VCC
USBPxM
USBPxP
GND
Fused Voltage Controlled Current
(VCC)
USBPxM
USBPxP
GND
Fused VCC
USBPxM
USBPxP
GND
Port 3
Port 1
OM12975
Signal
Description
+5 V with overcurrent monitor of both
port 1 and 2
Differential data line
Differential data line
Ground
+5 V with overcurrent monitor of both
port 1 and 2
Differential data line
Differential data line
Ground
+5 V with overcurrent monitor of both
port 3 and 4
Differential data line
Differential data line
Ground
+5 V with overcurrent monitor of both
port 3 and 4
Differential data line
Differential data line
Ground
Intel® SR870BN4 Server System Product Guide