Se Jin Electron SPR-8695TU KEYBOARD User Manual SPR 8695TU UserMan

Se Jin Electron Inc KEYBOARD SPR 8695TU UserMan

Contents

USERS MANUAL

User’s Manual
(M/N:SPR-8695TU)
Sejin Electron Inc.
FCC NOTICE
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC FULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITION:
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED,
INCLUDING INTERFERENCE THAT MAY CAUSE UNDERSIRED
OPERATION.
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 radiate radio frequency
energy and, if not installed and used in accordance with the instructions, 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 difference from that to which
the receiver is connected.
- Consult the dealer of an experienced radio/TV technician for help.
NOTE : The manufacturer is not responsible for any radio or TV interference caused by
unauthorized modifications to this equipment. Such modifications could void the user’s
authority to operate the equipment.
Thanks for using SEJIN Mini-keyboard with track ball (MODEL:SPR-8695TU)
THE SEJIN Mini-keyboard with Track-ball
Designed with the users in mind, it has a pleasant appearance and is Convenient to use.
No extra power supply is required.
It is compatible with the Microsoft Keyboard and Trackball
Mini-keyboard with Track-ball INSTALLATION
Turn the power supply off to your computer.
Check the USB keyboard/mouse port at the back of your computer and insert
The connector at the end of the Mini key-board cables into the usb port .
Turn the power supply on to your computer.
Using the Mini-keyboard with track ball
Using the Numeric KeyPad
Scope
This document provide a specifications for the Sejin standard USB MINI keyboard With trackball (Model
No.: SPR-8695TU)
which is electrically compatible to IBM PC/AT and USB systems.
Environmental Requirement
Ambient temperature and humidity(operation)
* temperature : 0 ~ 50aC
* humidity : 10%~85% RH
Ambient temperature and humidity (storage)
* temperature : -20 ~ +60aC
* humidity : 10%~95 % RH
Electrical performance
*Voltage : DC 5V +/- 10%
*Current : 170㎃(Max)
*Contact resistance( sheet) : 800 ohm Max
*Insulation resistance : 100M ohm Min(DC250V)
*Withstand voltage : AC 150V/Min
*Character and bounce :
Operation force shall be applied according to the normal operating method at 5V DC, 5 ㎃.
There shall be no bounce and chattering within 10 msec when it is measured a specially prepared tester or
synchroscope.
Chattering and bounce are defined in the following diagram ;
*Operation resign
*Mouse resolution : 200DPI (hardware)
*Mouse Tracking speed: 250mm/sec max
Mechanical performance
1) Operation system : Non-lock tactile rubber feeling
2) Stroke : a)KBD key top :3.0 b 0.5mm with an applied measurement load of 200gf.
b)mouse switch : 1.0mm ± 0.3mm 150gf(Max)
3) Operation force : Relationship between the operating force and travel is given by the following graph ;
The operation force has a tolerance of 50 b 20 gf.
4) Drop force : 5 ~ 35 gf
5) Operating feeling
No definite stickiness or other abnormality shall be allowed when force is applied with a finger on the key
top center at the rate of 3 times a second.
6) End stroke strength
End stroke should withstand a static load of 500 gf applied on the key stem in the perpendicular direction
for a minute.
7) Keytop full strength
A key op shall not be pulled off unless applying a force of 1 ~ 2Kg range in the vertical direction.
8) Wrap (due to the applying the force)
Shall be 5 mm or less when applying 1 kgf static force to the center of keyboard. The keyboard is held by
static rails at space bar side and opposite side.
Environmental
Items Test condition Requirements
5-1
Resistance at
Low Temperature
Measurement after the test with following condition and
leaving(normal temperature, normal humidity) for an hour
(1) Temperature : -25 b 30aC
(2) Time : 240 hours
4-1 through 4-6
5-1 through 5-7
7,8,9
5-2
Heat
Resistance
Measurement after the test with following condition and
leaving(normal temperature, normal humidity) for an hour
(1) Temperature : -70 b 30aC
(2) Time : 240 hours
4-1 through 4-6
5-1 through 5-7
7,8,9

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