Comtech EF Data CDM-425, Инструкция по установке и эксплуатации

Страница: 26 / 744

CDM-425 Advanced Satellite Modem
Revision
Preface xxiv MN-CDM-425
Operating Environment
CAUTION – DO NOT OPERATE THE UNIT IN ANY OF THESE EXTREME
OPERATING CONDITIONS:
•
AMBIENT TEMPERATURES LESS THAN 0°C (32°F) OR MORE THAN 50°C
(122°F). (MAXIMUM STORAGE TEMPERATURE ALLOWED IS -25°C (-13°F)
TO 85°C (185°F)).
•
PRECIPITATION, CONDENSATION, OR HUMID ATMOSPHERES OF MORE
THAN 95% RELATIVE HUMIDITY.
•
UNPRESSURIZED ALTITUDES OF MORE THAN 2000 METRES (6561.7
FEET).
•
EXCESSIVE DUST.
•
FLAMMABLE GASES.
•
CORROSIVE OR EXPLOSIVE ATMOSPHERES.
European Union Radio Equipment and Telecommunications Terminal
Equipment (R&TTE) Directive (1999/5/EC) and EN 301 489-1
Independent testing verifies that the unit complies with the European Union R&TTE Directive, its
reference to EN 301 489-1 (
Electromagnetic compatibility and Radio spectrum Matters [ERM];
ElectroMagnetic Compatibility [EMC] standard for radio equipment and services, Part 1: Common
technical requirements)
, and the Declarations of Conformity for the applicable directives,
standards, and practices that follow:
European Union Electromagnetic Compatibility (EMC) Directive
(2004/108/EC)
•
Emissions: EN 55022 Class B – Limits and Methods of Measurement of Radio Interference
Characteristics of Information Technology Equipment.
•
Immunity: EN 55024 – Information Technology Equipment: Immunity Characteristics, Limits,
and Methods of Measurement.
•
EN 61000-3-2 – Harmonic Currents Emission
•
EN 61000-3-3 – Voltage Fluctuations and Flicker.
•
Federal Communications Commission Federal Code of Regulation FCC Part 15,
Subpart B.
TO ENSURE THAT THE UNIT COMPLIES WITH THESE STANDARDS, OBEY
THESE INSTRUCTIONS:
•
Use coaxial cable that is of good quality (e.g., RG58/U (50
Ω)
or RG59/U (75
Ω)
) for
connections to the IF Tx and Rx (transmit and receive) BNC female connectors.
•
Use Type 'D' connectors that have back-shells with continuous metallic shielding.
Type ‘D’ cabling must have a continuous outer shield (either foil or braid, or both). The shield
must be bonded to the back-shell.
•
Operate the unit with its cover on at all times.