11 usb interface, 1 standard connector, 2 extension connectors – Kontron JRexplus-LX User Manual
Page 26: Jrex plus lx user's guide

KTD-S0001-C
Page 22
USB Interface
JRexplus LX User's Guide
11 USB Interface
The USB interface comes with four USB ports which follow the OHCI/EHCI specification and are USB 2.0
compliant. You can expand the amount of USB connections by adding external hubs. Two ports are avail-
able on a standard connector and two more ports on a pin strip.
11.1 Standard Connector
Two USB ports are available through the standard USB connector X12 (8 pins).
Header
Pin
Signal Name
Function
1
VCC
1)
Power +5V
2
USB0-
USB port 0 (negative)
3
USB0+
USB port 0 (positive)
4
GND
Ground
5
VCC
1)
Power +5V
6
USB1-
USB port 1 (negative)
7
USB1+
USB port 1 (positive)
1
5
8
GND
Ground
11.2 Extension Connectors
The other USB ports are available through the standard pin strip connector X13 (10 pins).
Header
Pin
Signal Name
Function
1
VCC
1)
Power +5V
2
VCC
1)
Power +5V
3
USB2-
USB port 2 (negative)
4
USB3-
USB port 3 (negative)
5
USB2+
USB port 2 (positive)
6
USB3+
USB port 3 (positive)
7
GND
Ground
8
GND
Ground
9
KEY (N.C.)
Key pin
10
GND
Ground
Note:
1)
To protect the external power lines of peripheral devices make sure that
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.