NDS ExpandOR, Руководство пользователя

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14
Electromagnetic Immunity
Note:
• Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land
mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically
with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic
site survey should be considered. If the measured field strength in the location in which the product is used
exceeds the applicable RF compliance level above, the product should be observed to verify normal opera-
tion. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or
relocating the product.
• Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Guidance and Manufacturer’s Declaration: Electromagnetic Emissions
The product is intended for use in the electromagnetic environment specified below. The customer or the user
of the product should assure that it is used in such an environment.
Immunity Test Immunity Test
Electrostatic discharge (ESD) IEC 61000-4-2 ±2, ±4, ±6, ±8kV contract discharge
±2, ±4, ±6, ±8, ±15 kV air discharge
Radiated RF field IEC 61000-4-3 3 V/m
80 MHz - 2.7 GHz
80% AM 1 kHz
Proximity fields from wireless transmitters
IEC 61000-4-3 80MHz to 2.7 GHz. 3V/m
Spot Tests: 385 MHz. at 27V/m;
(710, 745, 780, 5240, 5500, 5785) MHz. at 9V/m;
(450, 810, 870,930, 1720, 1845, 1970, 2450) MHz.
at 28V/m
Electrical fast transient / burst IEC 61000-4-4 ±2 kV, AC mains
±1 kV, I/O ports
100 kHz PRR
Surge IEC 61000-4-5
AC mains, Line to Ground
AC mains, Line to Line
±0.5, ±1, ±2 kV
±0.5, ±1 kV
Conducted RF IEC 61000-4-6 3 V (0.15MHz - 80MHz)
6 V ISM Bands
80% AM 1 kHz
Power frequency (50/60 Hz) magnetic field IEC 61000-4-8 30 A/m - 50 or 60 Hz
Voltage dips, short interruptions and voltage variations on
power supply
input lines IEC 61000-4-11 100% dip, 0.5 periods, 0°, 45°, 90°, 135°,
180°, 225°, 270°, 315°
100% dip, 1 period
30% dip, 25/30 periods (50/60 Hz)
Interrupt 100% drop, 5 sec