Chapter A — Specifications and Reading Distances
SR31T Tethered Scanner User’s Guide 55
Typical Power Consumption-Idle State (Ready-To-Work)
(5V power supply, 25°C)
SR31T1D RS-232 = 60 mA
USB = 70 mA
Keyboard wedge = 60 mA
SR31T2D RS-232 = 50 mA
USB = 70 mA
Keyboard wedge = 50 mA
SR31THP RS-232 = 50 mA
USB = 70 mA
Keyboard wedge = 50 mA
Interfaces
RS-232, USB, POS, Keyboard Wedge, Wand Emulation
Temperature and Environmental Specifications
Operating temperature 0°C to 50°C (32°F to 122°F)
Storage temperature -20°C to 70°C (-4°F to 158°F)
Relative humidity 5 to 95% non-condensing
Shock 50 G, 11 ms half-sinus, 3 directions
Vibrations 8G, from 10Hz to 500Hz, 2hr/axis, 3 axes
Tumble test 2000 tumbles at 1m height
Drop resistance 26 drops from 1.83 m (6 ft.) to concrete floor
Environmental rating IP53
Ambient light 0 to 100 000 lux
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