LITE ON TECHNOLOGY KB27RF002 RF 27MHz KEYBOARD User Manual SK 7265 User Manual

Lite-on Technology Corp. RF 27MHz KEYBOARD SK 7265 User Manual

USER MANUAL

LITE-ON Technology Department: HIS R&D User’s Manual For Model : SK-7265 RF Wireless Keyboard Prepared :Muchuan Lee Version: 1.0 Department: HIS, R&D Date: NOV. 11th, 2003
LITE-ON Technology Department: HIS R&D Table of Contents 1. GENERAL MAIN FEATURE:............................................................................................................1 SOFTWARE REQUIREMENT.............................................................................................1 2. MECHANICAL ID.......................................................................................................................... KEYBOARD/RECEIVER ......................................................................................................4 3. ELECTRICAL FEATURE 3.1 KEYBOARD TRANSMITTER ......................................................................................................3 3.1.1 Operating voltage ....................................................................................................................................................3 3.1.2 Current consumption................................................................................................................................................3 3.1.3 Power consumption..................................................................................................................................................3 3.1.4 Low Power Indicator................................................................................................................................................3 3.1. PCB Assembly .................................................................................................................................................... 3.1.6 Effective Transmission Distance..............................................................................................................................4 3.2 RECEIVER.......................................................................................................................4 3.2.1 Operating voltage ....................................................................................................................................................4 3.2.2 Current consumption................................................................................................................................................4 3.2.3 Power consumption.................................................................................................................................................... 3.2.4 Pin outs of PS2 min-DIN connector........................................................................................................................... 3.2.6 Circuitry...................................................................................................................................................................4 3.2.7.1 PCB Assembly.............................................................................................................................................5 3.2.7.2 Cable ...........................................................................................................................................................5 3.3 FUNCTION DESCRIPTION................................................................................................5 3.3.1 Interface specification with host PC ........................................................................................................................5 3.3.2. Channel and ID default setting................................................................................................................................5 3.3.3 Channel and ID numbers .........................................................................................................................................5
SK-7265 RF WIRELESS KEYBOARD Page No: 1 of 27 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. Product package includes wireless keyboard and receiver, mouse device is optional according to customer’s demend. 1.1 Main feature The product provides 4 channels /256 ID operation to prevent frequency interference.there are two channel for keyboard and another two channel for mouse. The receiver interface of supporting both keyboard and mouse to the system through USB ports. .  High performance ,have a reliable and stable function in RF link.  Phantom key detection.  Low power consumption .  4k bps baud rate in air.  Provides 2 +2 RF channels .  256 ID codes randomly generated to resist interference.  EEPROM interface for ID keeping  Low battery detector function for transmitter. 1.2 Software requirement The keyboard, receiver and drivers are compatible with operating systems that are WIN98, Windows Millennium and Windows 2000. The driver-application also must meet all current and future Microsoft WHQL requirements.
SK-7265 RF WIRELESS KEYBOARD Page No: 2 of 27 2. Mechanical ID Keyboard:
SK-7265 RF WIRELESS KEYBOARD Page No: 3 of 27 3. Electrical Specification Functional Block diagram: Microprocessor EMC78P451 3.1 Keyboard Transmitter Operating voltage The operating voltage range for keyboard is 2.2 ~ 3.3 Vdc. There are 2 AA batteries providing 3.0V for operation Current consumption Typical current consumption is 8 mA, .Maximum at 10 mA Suspend current is under 50 uA. Power consumption The power consumption is less than 0.024 W at operation mode and 150 uW at sleep mode. Low Power Indicator Low power indicator on the keyboard will be lit during hitting key when the battery voltage applying to keyboard is less than about 2.5V. CPU Crystal : 4.9152MH RF Link PC Host PS2 Interface cable Low power indicator NumL ,CAP, Scrol LED Data indicator Keyboard (Base-Band) CPU: EMC78P257 &CYC63743 Crystal : 8MHZ USB clock :6MHZ internal TX-Freq : 27.095MHz 27.145 MHz RX-Freq : Crystal : 26.690 /26.640 MHzBase-Band Microprocessor MA6135
SK-7265 RF WIRELESS KEYBOARD Page No: 4 of 27 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 .  Low battery power consumption and high RF performance design. Easy Acess Key Code Table Win2000 compatible, they are include,refer to table below: USB Hot key No. Usage Name / Key Name 1 Scan Next Track 2 Scan Previous Track 3 Stop 4 Play / Pause 5 Mute 6 Volume Increment 7 Volume Decrement 8 EMail Reader 9 WWW Home 10 WWW Back 11 WWW Forward 12 WWW Favorites 13 WWW Search 14 WWW Refresh *These controls are currently supported in Windows Me only. 3.2 Receiver 3.2.1 Operating voltage Voltage supplied to keyboard receiver : 5+/-0.25 VDC With ripple lower than 150mv, and capable of supply load current up to 100 mA with voltage drop less than 0.25 VDC Current consumption Under nominal 5 VDC power supplied, typical current
SK-7265 RF WIRELESS KEYBOARD Page No: 5 of 27 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. 3.3.2 Operation Battery Installation Installs two AA batteries to transmitter and connected the receiver with PC system, it’s ready for connection procedure. Connection (ID & channel Pairing) procedure Procedure by steps Step-1: Pressing the channel button one time of receiver first ,the DATA LED will be lit up. Step-2: Within 10 seconds after RX button pressed , press the channel button of TX. The DATA LED will turn OFF when it completed connection between TX and RX. Step-3: Go to the normal operate. Note: Preset default channel setting in the production line before packing for delivery Channel and ID numbers Channel: two channels including CH1,27.095 and CH2 ,27.145 for keyboard . ID: There has a randomly 256 ID from for selection.
SK-7265 RF WIRELESS KEYBOARD Page No: 6 of 27 Note: The ID indication is to prevent from interfering each other. End of SK-7265 User’s Manual
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. NOTE This equipment has been tested and found to comply with 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 radiated 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 interference will not occur in a particular installation 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 into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. Note: This device and its antenna(s) used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

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