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User Guide • SC2-PRESTO • CompactPCI
USB Connectors
The Intel® QM87 Platform Controller Hub incorporates a four-port USB 3.0 xHCI host controller. Two
ports are directly available on the SC2-PRESTO front panel (type A receptacle), for attachment of
external USB devices.
1)
+5V via 1.5A current-limited electronic power switch. Power rail may be switched off by software independently for
each port.
Another two USB 3.0 connectors would be available when the SC2-PRESTO is combined with the
SCS-TRUMPET mezzanine side card.
© EKF
P-USB • Dual USB 3.0 Receptacle
USB 3.0 dual type A receptacle, stacked, 18-position
USB 3.0
1
2
®
Serial CPU Board • Intel® Core
1
2
3
4
5
6
7
8
9
-67-
TM
4xxx Processor
1)
VBUS +5V, 1.5A max
USB D-
USB D+
GND
SS RX-
SS RX+
GND
SS TX-
SS TX+
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