M877
Staco Systems’ enclosed, illuminated M877 keyboard was designed for applications where a compact yet rugged keyboard is needed. The M877 series features 5-level dimming green LED backlighting including NVIS Green A or B on some models, standard USB and a built-in cursor control.The keyboard also offers a special function key labeled as “EMERGENCY” that can be used to perform special task associated with the external interface device or computer.
The keyboard’s enclosure is equipped with a pressure relief feature required to equalize the air pressure inside the enclosure to atmosphere outside the enclosure. This is especially necessary when operating keyboard at the high altitude atmosphere.
APPLICATIONS
- Military
- Aerospace
- Law Enforcement
- First Responder
- Industrial
- Oil & Gas
- 88 keys in a compact size
- USB compatible
- 5-level dimming green LED backlighting
- NVIS Green A/B (optional)
- Directional pointer
- Presure relief feature
- A special ‘Emergency” key is located at the upper left corner for first responder applications
Mechanical
-
- Actuating Force: 120 +/- 60 grams
- Travel: 1.70 +/- 0.5 mm
- Weight:
< 2.3 lb
- Dimension (in): 11.5 x 6.4 x 2.0
- Mechanical Life (Min.): 1,000,000 cycles of operation at 25°C
Electrical & Backlight
- Backlighting: Regular Green or NVIS Green A/B LED, 5-level dimming plus OFF
- Electrical Life: 1,000,000 Actuations minimum at rated load
- Power Consumption: < 2.5W @ 5V at maximum brightness
- Contact Resistance: < 2K ohm
- Indicator: Green LED on Caps Lock, NumLk, and ScrLk
- Insulation Resistance: > 100M ohm @ 250VDC
- ‘Emergency” Key: Output “Shift+F1” key code and turn off backlight
Environmental and EMI/RFI
-
- Operating Temperature:-40 to 85°C; -40°F to 185°F
- Storage Temperature:-40 to 85°C; -40°F to 185°F
- Thermal Shock:-40°C 15 min, +75°C 15 min, 5 cycles; MIL-STD-810F, Method 503.4
- Humidity: 95% RH, 60°C, 240 hrs total. MIL-STD-810F, Method 507.4
- Altitude: 12,500 ft. (Operating); 30,000 ft. (Non-Operating)
- Vibration: 20 G, 10-55Hz, 3 axis, 0.5 mm, 2 hrs – 201A of MIL-STD-202E
- Shock: 10 G peak, 213B of MIL-STD-202E
- Sand and Dust: 1740 ft/min, 12 hrs, concentration 0.29 g/ft3; MIL-STD-810F, Method 510.4, Procedure I
- Salt Spray: 5% salt and water solution at 35 ̊C (95 ̊F) for 96 hours, MIL-STD-810F, Method 509.4
- Chemical Resistance: Super Tropical Bleach (STB), alcohol, Lysol, hand soap, laundry detergent, vinegar, and hand lotion
- Water Seal-ability: NEMA 4; 25.4 mm nozzle at 246 liter/min from 3 m away for 5 min
- Flammability: 94VO and 94 HB
- EMI/RFI (MIL-STD-461)*: RE102 Radiated Emission, Electrical Field, 10 KHz to 18 GHz. RS103 Radiated Susceptibility, Electrical Field, 80 MHz to 2 GHz.
*: For selected models M8772X and M8774X.
