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Universal Serial Bus (USB) Interface
The main board provides a double-stacked USB port and the peripheral board provides two single
USB port connectors. See Table 36. 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 either of the built-in ports.
Table 36. USB Connector Pinout
Pin
Signal
Dual USB
Connector
Single USB
Connector
A1
Fused Voltage Controlled Current (VCC)
(+5 V /w overcurrent monitor of both port 1 and 2)
A2
USBPxM (differential data line)
A3
USBPxP (differential data line)
A4 GND
(ground)
B1
Fused VCC (+5 V /w overcurrent monitor of both
port 1 and 2)
B2
USBPxM (differential data line)
B3
USBPxP (differential data line)
B4
GND (ground)
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