IHSE USA 476 Series Draco U-Switch - Manual (Page 25)

Specifications
2013-04-11 25
7.1.2 RJ10 / 4P4C
This interface is used to establish a customer specific communication with
the U-Switch.
External Status LED
For control of an external Status LED to show the status of the respective
port, please proceed as follows:
Connect the anode of your LED with pin 1 and the cathode with pin 2. Use
a suitable series resistor that you connect in series. The interface supplies
3.3 V output voltage with 15 mA max.
External Button
To control a port by an external button, please proceed as follows:
Use an NC (normally closed) contact as a switch. This contact has to
short-circuit pin 3 and pin 4 for switching.
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7.2 Supported Peripherals
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7.2.1 USB-HID Devices
The U-Switch will support most USB-HID devices, including the vast
majority of keyboards and mice currently on the market. Many other kinds
of HID devices such as bar-code scanners and touch screens may also be
compatible
It is not possible to guarantee support for all available USB-HID devices.
In certain cases, custom firmware may be required.
USB-HID (and other) devices that are not supported as standard will
normally operate with our devices featuring transparent USB support.
Please note that concurrent operation of more than two USB-HID devices
is not possible even if you use a USB hub.
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