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11 usb interface, 1 standard connector, 2 extension connectors – Kontron JRexplus-LX User Manual

Page 26: Jrex plus lx user's guide

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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.