Board Interfaces; Usb Interfaces; Table 3-4: Front Panel Usb Connector Pin Definition - ADLINK Technology cPCI-3920 Series User Manual

3.3 Board Interfaces

USB Interfaces

The cPCI-3920 supports six USB 2.0 ports:
one front I/O
two front I/O on DB-3920L2 module
one onboard to connect a Flash disk
two on the Rear I/O module.
On the USB 2.0 front panel port, USB cable with up to 5 meters in
length can be used.
On the USB 2.0 Rear I/O ports, it is strongly recommended to use
a cable below 3 meters in length for USB 2.0 devices.
The USB 2.0 ports are high-speed, full-speed, and low-speed
capable. Hi-speed USB 2.0 allows data transfers of up to 480 Mb/s
- 40 times faster than a full-speed USB (USB 1.1). One USB
peripheral may be connected to each port.
To connect more USB devices than there are available ports, an
external hub is required.
Front Panel USB Connectors (CN2, CN4 -2, -2)

Table 3-4: Front Panel USB Connector Pin Definition

The cPCI-3920 host interfaces can be used with maximum
Note:
500 mA continuous load current as specified in the Universal
Serial Bus Specification, Revision 2.0. Short-circuit protec-
tion is provided. All the signal lines are EMI-filtered.
32
Pin # Signal Name
1 Vcc
2 UV0-
3 UV0+
4 GND
Functional Description