Model RT-4900W
Small Footprint Membrane Keyboard for Windows® 95

Features/Benefits
Keyboard Specifications
Membrane Keyswitch Specifications
Download Data Sheet in PDF Format

Model RT4900

FEATURES/BENEFITS
Two additional Windows® logo keys allow the user to quickly access the Windows 95 Operating system.
Additional application key allows the user to access pop-up context menus within working applications.
Full compatibility with 286 or higher processor.
Full compatibility with NetWare, DOS and Windows 3.x.
Full travel membrane keyswitches rated at 20 million cycles of trouble-free operation.
One year warranty.
Convenient RMA process.
IBM AT/PS-2 compatibility regular DIN or optional mini-DIN connector.
European model available ...105 key industry standard (not pictured).
THE "RIGHT TOUCH" FOR COMPATIBILITY
The new NMB Right Touch keyboard for Windows 95 has a 22% smaller footprint than a standard membrane keyboard, complementing modern enclosure designs and smaller office work areas. With the addition of three new keys for increased functionality with Windows 95 operating system, the user will have all direct applications access at their fingertips.

The RT-4900WIN keyboard operates with any DOS, Windows and Windows 95 compatible system. As a result of advanced electronic engineering and testing, compatibility with Novell is assured and Microsoft Compatibility Labs certification has been awarded.

NMB keyboards are assembled in a modern automated keyboard factory specifically designed and built for high volume, high quality, competitively priced keyboards. NMB's leadership in the worldwide keyboard industry is due to this capacity as well as to over 27 years of keyboard experience and to outstanding domestic engineering support and customer service.
KEYBOARD SPECIFICATIONS
Model 4900
FUNCTIONAL
Auto Repeat
This function is controlled by the host system with the following default values. When a key is held down, the keyboard will continuously output 10.9 characters per second after a delay of 0.5 seconds.

Locking Functions
LEDs located on the enclosure indicate the status of Num Lock, Caps Lock and Scroll Lock Keys. The LED indicators are controlled by the host system.

Buffering
The keyboard will buffer up to 16 bytes when the system is unable to receive scan codes from the keyboard. The keystrokes are stored in a first-in-first-out (FIFO) buffer.

Input-Output Data Logic Level
Data input and output is standard TTL level.

ELECTRICAL
Input Voltage
4.75 to 5.25 VDC.

Input Current
250 milliamperes maximum.
MECHANICAL
Enclosure Material
Injection Molded Thermoplastics.

Keycap Material
Thermoplastic.
UL flammability rating 94 HB.


Enclosure Color
Pearl White

Keycap Colors
Pearl White

ENVIRONMENTAL
Temperature
Operating: +32°F to +131°F (0°C to +55°C)
Storage: -40°F to +149°F (-40°C to +65°C)


Relative Humidity
0 to 95 percent.

Electromagnetic Compatibility
The keyboard is designed and manufactured to comply with Class B limits, Part 15 of FCC rules for computing device peripherals.

Electrostatic Discharge (ESD)
The level of ESD protection is dependent on the grounding of the host system. In most cases the RT keyboard features 15 KV protection without catastrophic failure and 10 KV protection without any soft errors. Conforms to IEC 801-2 specifications.

Agency Approval
Keyboard is approved by FCC, UL, CSA, TUV, ISO and CE.
KEYSWITCH SPECIFICATIONS
MECHANICAL
Contact Material
Mylar with silver-carbon overlay.

Keyswitch Travel
0.140 ± 0.020 inch (3.56 ± 0.5 mm)

Travel to Make
0.090 ± 0.020 inch (2.29 ± 0.5 mm)

Operating Force
Momentary Action: 2.0 oz. nominal (55 grams)


Feel - Tactile.

Life - Meets or exceeds 20 million cycles.



Specifications Subject to Change Without Notice. "Right Touch" is a trademark of NMB Technologies Inc.
All other brand or product names mentioned are trademarks or registered trademarks of their respective holders.