ADLINK aTCA-6155 - Manual (Page 35)

Functional Description 21
aTCA-6155
3.3 I/O Interfaces
USB
The aTCA-6155 supports eight USB 2.0 ports:
X three Type-A ports on front panel
X four ports routed to RTM
X one channel for 4GB on-board NAND flash
On the USB 2.0 front panel port, a 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.
Front Panel USB Connector (CN9-11)
Table 3-1: Front Panel USB Connector Pin Definition
Pin # Signal Name
1 Vcc
2 Data-
3 Data+
4 GND
NOTE: NOTE:
The aTCA-6155 host interfaces can be used with maximum
500mA continuous load current as specified in the Universal
Serial Bus Specification, Revision 2.0. Short circuit protection
is provided. All the signal lines are EMI filtered.