NCR RealPOS, Руководство пользователя

Страница: 20 / 187

2-2 Chapter 2: Product Information
Environmental Considerations
The 7893 operates in all standard-working environments. Temperature and humidity ranges
permitted are greater when the 7893 is in storage or transit. The following table gives the
various environmental requirements.
Temperature Temperature Change Humidity Range
Operating Environment
(Working Range)
10°C to 40°C
(50°F to104°F)
10°C (18°F) / Hour
5% - 95%
(No Condensation)
Extreme Power-on Range
-15°C to 45°C
(5°F to 113°F)
20°C (36°F) / Hour
5% - 95%
(No Condensation)
Storage Range
-15°C to 50°C
(5°F to 120°F)
20°C (36°F) / Hour
5% - 95%
(No Condensation)
Transit Range
-40°C to 60°C
(-40°F to 140°F)
20°C (36°F) / Hour
5% - 95%
(No Condensation)
Barometric Pressure Equivalent Altitude (Reference Only)
Operating (105 - 79.5) × 103 Pascal (Pa) Up to 2,000 meters (6560 feet)
Transit (105 - 74) × 103 Pascal (Pa)
Up to 2,500 meters (8200 feet)
Power Considerations
An external power supply provides power to the scanner through the interface cable. Due to
power limitations, the 7893 will not be capable of operating solely from 5VDC USB power.
The scanner shall operate with a 12 VDC supply with a peak current draw of less than 1 A.
The power supply input can be 90-264 VAC at 50-60 Hz. A universal power supply comes
with the scanner, depending on the requirements you specify.