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Recommended Standard Designations
Electronic Industries Association (EIA) designations supersede Recommended Standard (RS)
designations. Reference to the old RS designations (e.g., RS-232) may appear where it might
concern actual text displayed on the unit's rear panel, Serial Interface, or Web Server Interface
pages. All other references in the manual use the EIA designations.
Metric Conversion
Metric conversion information is provided on the inside back cover of this manual. Comtech EF
Data provides this information to assist the user in cross-referencing non-Metric to Metric
conversions.
Electrical Safety
Electrical Safety Notice
Double pole / neutral fusing is used on the prime power supply input.
This equipment is designed to minimize exposure of personnel to hazards. For further information,
contact the Comtech EF Data Customer Support Department. The persons responsible for the
operation and maintenance of the equipment must:
•
Know how to work around, with, and on high voltage equipment.
•
Exercise every precaution to ensure personnel safety.
•
Exercise extreme care when working near high voltages.
•
Be familiar with the warnings presented in this manual.
Electrical Safety Compliance
The CRS-280L has been shown to comply with the following safety standard:
•
EN60950: Safety of Information Technology Equipment, including electrical business
machines
The equipment is rated for operation over the range 90-264 volts AC per each power supply. Each
has a maximum power consumption of 25 Watts and draws a maximum of 0.75 Amps rms max @
90 Volts AC, and 0.35 Amps rms max @ 230 Volts AC.
Optionally, the equipment is rated for operation over the range of 36-72 volts DC per each supply.
Each has a maximum power consumption of 25 Watts and draws a maximum of 6.25 Amps.
Preface
CRS-280/280L IF Switch for 1:N Redundancy
iii
Revision -
MN-PCB-4300A
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