Technical Information CB3-TONE • CompactPCI® USB 3.0 Controller
Technical Reference - Connectors
USB 3.0 Connectors
The CB3-TONE is equipped with four front panel receptacles for USB 3.0 or USB 2.0 type A cable
connectors (USB root hub). When connected to USB 2.0 compliant devices, only the classic 4 contacts
(data pair, +5V and GND) are in use. USB 3.0 devices in addition communicate via the SuperSpeed
differential transmit and receive signal pairs, available across another 5 contact pins.
USB 3.0 Receptacles
1
V
BUS
+5V 1.5Amax
2
USB D-
3
USB D+
4
GND
5
SS RX-
6
SS RX+
7
GND
8
SS TX-
9
SS TX+
Each connector pr5V (V
BUS
) for powering external devices. Electronic switches limit the
maximum output current of each individual USB connector to a safe level. The V
BUS
power has been
derived from the CompactPCI® +5V power rail via the backplane connector J1 and must be supplied
by the system power supply.
1
4
5
9
27
0.23.
09
.1
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