Essentials Wireless Dongle Receiver User’s Guide
1、 Feature
1．1． Interface: USB 1.1
1．2． Power Input: DC 5V ±5% @ 100mA
1．3． Transmission mode：RF
1．4． Frequency：2402~2480MHz
1．5． RF channel quantity：79
1．6． Center of Channel: 2402/2403/2404…2478/2479/2480MHz
1．7． Channel Interval: 1MHz
1．8． Width of Channel: < 2MHz
1．9． Data Rate: < 1Mbps
1．10． Receive Sensitivity: -80dBm
1．11． Data Send timing: <500us
1．12． Modulate mode：GFSK
1．13． Effective distance：10m
1．14． Operating Temperature: +5℃～+45℃
2、 Pin Assignment
Pin
Number
1 USB GND
2 USB D+
Signal
Name
Connector
1 2 3 4
3 USB D-
4 USB Vcc
3、 Use guide
3.1 Plug the receiver into the PC’s USB port, The operating system will identifie the
receiver and begins in stallation automatically. When completed, the system will
prompt that “You new hardware is installed and ready to use.”
3.2 Unplug the receiver.
3.3 Use a paperclip, pen or pointed object to press into the reset pin hole on the back
of the keyboard, the LowBatt Led will twinkle.
3.4 Plug the receiver int the PC’s USB port, the keybard LED will be off i f it is
successfully paired
4、Federal Communication Commission Interference Statement
This equipment has been tested and found to comply wit h the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that in terference will not
occur in a particular insta llation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment in to an outlet on a circuit different f rom that to which the
receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that may
cause undesired operation.
Caution!
The manufacturer is not responsible for any radio or TV interference caused by unauthorized
modifications to this equipment. Such modifications could void t he user authority to operate the
equipment.
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