LITE ON TECHNOLOGY KB24RF002 Wireless Keyboard User Manual

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Document ID	1162019
Application ID	ZCMH375hHmw7/xu7eXWnaA==
Document Description	user manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	6.32kB (78983 bits)
Date Submitted	2009-08-31 00:00:00
Date Available	2009-08-31 00:00:00
Creation Date	2009-08-15 15:29:42
Producing Software	Acrobat Distiller 6.0 (Windows)
Document Lastmod	2009-08-30 13:41:11
Document Title	untitled

LiteON Technology
Operation Manual
Model :
SK-7235-K
Customer : LITEON
Version : 0.3
Issue Date : 07.27.2009
SK-7235 2.4GHZ Keyboard Ver:0.3

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LiteON Technology
Table of Contents
1.General........................................................................................................................................... 3
2. Mechanical Specifications ............................................................................................................ 3
2.1 Dimensions and Weight.............................................................................................................. 3
3. Electrical Specification ................................................................................................................. 4
3.1 Power Consumption............................................................................................................. 5
4. Radio Feature ................................................................................................................................ 5
4.1 Operation procedure............................................................................................................. 5
4.2 Radio feature........................................................................................................................ 6
SK-7235 2.4GHZ Keyboard Ver:0.3

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LiteON Technology
1.General
This is operation manual of SK-7235 series RF keyboard. It is a high quality
wireless 2.4GHz radio product with multi-channels, minimum 10m of operation range
for keyboard.
It offers a power saving design and with very low power consumption for
operation .
Product function includes standard keyboard function and WIN2000 hot key
function. .For normal operation, a USB RF dongle would be used as a RF receiver on
PC end.
2. Mechanical Specifications
Product Outline
Sk-7235 keyboard enclosure
2.1 Dimensions and Weight
1.Unpacked Dimensions and Weight
length(±3mm)
438
width(±3mm)
173
SK-7235 2.4GHZ Keyboard Ver:0.3
height(±3mm)
29

weight(±0.1kg)
0.59
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LiteON Technology
3. Electrical Specification
Main Feature.
Nordic 2.4GHz RF two way solution.
Multi-channels with total 78 channels.
Total 16 bits ID numbers.
Maximum 2M transmission baud rate.
Wireless operating distance up to 10 m
The product offers hot key function for WIN2000 as well as supports standard keyboard
functions.
Product Applications
Laptop PC
Desktop PC
Operate OS: window 2000/ME/XP/MAC/LINUX OS
Functional Block diagram of RF Keyboard
SK-7235 2.4GHZ Keyboard Ver:0.3

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LiteON Technology
Functional Block diagram of RF Communication system
ANTENNA
3.1 Power Consumption
*For keyboard:
Operation Voltage:
Voltage supplied to device: 3 VDC (AAA battery *2)
Operation voltage range: 2.2~3.3VDC for keyboard
4. Radio Feature
4.1 Operation procedure
The product needs to make pairing with USB dongle before normal application.
In general we can use the product directly by the user because the pairing process has been
done at manufacturer site. However, the pairing process needs to be done if there is no response
from keyboard.
* How to make pairing (step by step as below process) by user:
1. Insert two batteries to the RF Keyboard, and close the battery door.
2. Plug in the dongle to the USB port of PC and the access LED will flash about 2 seconds.
3. Press the ID connect button of dongle and the access LED will flash about 15 seconds.
4. Press the ID connect button of RF keyboard for pairing with the dongle within 15 seconds.
5. The access LED will go off and RF keyboard is ready. If access LED is still blinking, please
repeat the above procedure 1 to 4 again.
SK-7235 2.4GHZ Keyboard Ver:0.3

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LiteON Technology
Note :
1. There are total 65,536 IDs for pairing.
2. If you find some interference from other Wireless Keyboard, you can repeat the above
procedures 3 and 4 for re-pairing and change to a new ID.
3. Check the batteries power supply if pairing was unsuccessfully. Repeats pairing process step 1~5
after checking battery power status.
4.2 Radio feature
*Table-1 Parameter of radio
Item/ Parameter
Specification
Frequency Range
2.4GHz (2402MH-2479MHz)
Modulation
GFSK
Channel
78 channel
Channel I.D
16bits →65,536 sets
Operation Voltage
2.2V~3.3V(BATTERY)
Battery
AAA*2 batteries.
TX Power
0 dBm (Typical)
Transmission rate
TX FM frequency deviation
Frequency tolerance
SK-7235 2.4GHZ Keyboard Ver:0.3
2 Mbps
+/- 320 kHz
+/- 30 ppm

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LiteON Technology
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 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 installation. ,
May cause harmful interference to radio communication. 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
You are cautioned that changes or modifications not expressly approved by the party responsible for
compliance could void your authority to operate the equipment.
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
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
SK-7235 2.4GHZ Keyboard Ver:0.3

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