CP3002
CP-RIO3-04 Rear I/O
ID 1042-9252, Rev. 2.0
Page B - 7
P R E L I M I N A R Y
B.5
Module Interfaces
B.5.1
USB Interfaces
There are two identical USB interfaces on the CP-RIO3-04 rear I/O module, each with a max-
imum transfer rate of 480 Mb/s provided for connecting USB devices. One USB peripheral may
be connected to each port. To connect more USB devices than there are available ports, an
external hub is required.
Note ...
The USB host interfaces on the CP-RIO3-04 rear I/O module can be used with
maximum 500 mA continuous load current as specified in the Universal Serial
Bus Specification, Revision 2.0. Short-circuit protection is provided. All the sig-
nal lines are EMI-filtered.
Note ...
The rear I/O interface supports the USB 1.1 and USB 2.0 standards. For
USB 2.0 it is strongly recommended to use a cable length not exceeding
3 meters.
Figure B-4: USB Con. J11/J12
J12
J11
1
3
2
4
1
3
2
4
Table B-2: USB Con. J11 and J12 Pinout
PIN
SIGNAL
DESCRIPTION
I/O
1
VCC
VCC signal
O
2
USB-
Differential USB-
I/O
3
USB+
Differential USB+
I/O
4
GND
GND signal
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