User’s Manual For Model : SK-7265 RF Wireless Keyboard Version: 1.0 Department: HIS, R&D Date: NOV.
Table of Contents 1. GENERAL MAIN FEATURE:............................................................................................................1 SOFTWARE REQUIREMENT .............................................................................................1 2. MECHANICAL ID.......................................................................................................................... KEYBOARD/RECEIVER ......................................................................................
1. General SK-7265 is a set of 27 MHZ RF keyboard product, the product is composed of a set of wireless desk top keyboard and USB receiver. The keyboard includes standard function keys and several easy access keys. General the receiver supports both keyboard and mouse function. Hereunder are only described keyboard functionality in the product specification ,not excluded mouse portion.The mouse is a optional device and the functionality will be described in the specification of mouse.
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3. Electrical Specification Functional Block diagram: Low power indicator Keyboard (Base-Band) TX-Freq : CPU 27.095MHz Crystal : 4.9152MH 27.145 MHz RF Link Microprocessor EMC78P451 Microprocessor MA6135 Base-Band CPU: EMC78P257 RX-Freq : &CYC63743 Crystal : 26.690 Crystal : 8MHZ /26. 640 MHz USB clock :6MHZ internal PS2 Interface PC Host cable NumL ,CAP, Scrol LED Data indicator 3.1 Keyboard Transmitter Operating voltage The operating voltage range for keyboard is 2.2 ~ 3.3 Vdc.
Effective Transmission Distance Effective transmission distance is 2 meters. 3.1.4 Features of keyboard This model contains easy access keys, including web. and multimedia keys . There is one LED on the keyboard for battery low power indication. .It has a standard keyboard function with the language layout of US English version. Two AA batteries are to be installed at the bottom of the keyboard for operation. There is a channel selection button at the bottom side of keyboard .
operating is 40 mA and 45 mA at maximum. Cable connector : 4 pin USB connector compatible with USB V1.1 spec.. LED indicators There are four indicators on the receiver included NumLock ,CapLock,ScroLock and Receiving Data LEDs. The data indicator will be ON only when data is receiving from the transmitter. 3.3 Function description 3.3.1 Interface specification with host PC The keyboard Receiver uses USB interface to PC host in data communication between them. 3.3.
Note: The ID indication is to prevent from interfering each other.
FEDERAL COMMUNICATIONS COMMISSION This device complies with Part 15 of the FCC Rules. 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user‘s authority to operate the equipment.
