TECHTERM TERMINALS
Document 15776(1.0.0.0)
31
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PPENDIX
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Specifications
Display
•
Reflective/Transreflective Liquid Crystal Display
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4 Row x 20 Character Display Format
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US ASCII Character Set (5 x 7 pixels)
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Dark Characters on Light Background (except VFD)
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Options: Supertwist, Supertwist Backlit, LED Supertwist Backlit, VFD
*
and Extended Temperature
VFD
*
* Not available on battery-powered units.
Keys & Switches
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Type: Membrane or Elastomeric
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Standard Layouts: 45-key (9 rows x 5 columns) and 30-key (6 x 5)
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Custom Layouts: 20-key (5 x 4), 32-key (8 x 4) and 15-key (5 x 3)
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Feedback: Tactile and Audible
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Programmability: Up to five function keys with up to fifteen definitions (depending on keypad)
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Optional Backlit Keypad Available
Power
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Line:
•
Voltage: 5 VDC +/- 5%, 7.5-12 VDC
*
Linear Regulator or 9.5-28 VDC Switching Regulator
Maximum voltage depends on current draw.
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Current: 15-20 mA Nominal (RS-232, RS-422)
*
Some options require additional current (for example, a backlight adds 50 mA)
•
Battery:
▪
Nickel Metal Hydride Rechargeable Pack, (up to 40 hours of run time without backlight)
▪
6 AA Alkaline Batteries (not shipped with unit)
CPU
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Type: Atmel AT89C55WD
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Speed:
11.059 M
H
z
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