Comtech EF Data CRS-280L - Manual (Page 13)

CRS-280L L-Band IF Switch for 1:N Redundancy Revision 1
Preface MN/CRS280L.IOM
ix
IMPORTANT
The user should carefully review the following information:
Electrical Safety
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.
Fuses
CAUTION
FOR CONTINUED OPERATOR SAFETY, ALWAYS REPLACE THE FUSES WITH
THE CORRECT TYPE AND RATING.
The AC-powered CRS-280L is outfitted with two power supplies, each containing two fuses –
one each for line and neutral connections. These are contained within the body of each IEC power
inlet connector, behind a small plastic flap.
• For 230 volt AC operation, use T2.5A, 20mm fuses.
• For 115 volt AC operation, use T5.0A fuses, slow blow, P/N 5ASB-IEC.
The optionally DC-powered CRS-280L is outfitted with two power supplies. Each power supply
contains one fuse installed into a fuse holder.
• For 48 volt DC operation, use T6.25A 3AG fuses.
Environmental
The CRS-280L must not be operated in an environment where the unit is exposed to extremes of
temperature outside the ambient range 0 to 50°C, precipitation, condensation, or humid
atmospheres above 95% RH, altitudes (non-pressurized) greater than 2000 meters, excessive dust
or vibration, flammable gases, corrosive or explosive atmospheres.
Operation in vehicles or other transportable installations that are equipped to provide a stable
environment is permitted. If such vehicles do not provide a stable environment, safety of the
equipment to EN60950 may not be guaranteed.
Installation
The installation and connection to the line supply must be made in compliance to local or national
wiring codes and regulations.