User's Manual

SEJIN ELECTRON, INC

Written by jung ho shim

Version 1.1

Last revised date: March 10, 2009

This Document contains proprietary to Sejin Electron, Inc. Use or disclosure without written

permission from an officer of Sejin is expressly forbidden.

Document number: C00170 Page 5/8 Printed date: March 17, 2009

Dimensions: 64 x 23 x 10 mm (2.5 x 0.9 x 0.4 inch)

Agency approvals: FCC, CE

4 Specifications

4.1 Radio Frequency specification

Band width: 2403.5Mhz~ 2479.9Mhz

Frequency tolerance: +\- 50PPM

Modulation method: MSK

Spread spectrum: Adaptive Frequency Hopping

Number of channels: 64 Channel

RF Power: No more than 10mW

Antenna type: Internal PCB Patch Antenna

Number of User ID: 32767

RF transmission rate: 250Kbps

4.2 Electrical specification

USB Dongle Keyboard

Operating voltage 4.2V~5.25V 1.8V~3.4V

Operating current Max 100mA Max 50mA

Operating temperature

0 ~ 40℃ 0 ~ 40℃

Storage temperature

-40 ~ 60℃ -40 ~ 60℃

Operating humidity 0~90% non condensing 0~90% non condensing

Storage humidity 0~95% non condensing 0~95% non condensing