Product specifications

CRS-170A L-Band 1:1 Redundancy Switch Revision 3
Preface MN/CRS170A.IOM
This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in
accordance with the instruction manual, it may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference; in which
case, users are required to correct the interference at their own expense.
To ensure compliance, properly shielded cables for DATA I/O shall be used.
More specifically, these cables shall be shielded from end to end, ensuring a
continuous shield.
NOTE
Safety Compliance
EN 60950
Applicable testing is routinely performed as a condition of manufacturing on all units to ensure
compliance with safety requirements of EN60950.
The equipment is rated for operation at +12 volts DC and -12 volts DC. It has a maximum power
consumption of 4.5 Watts, and draws a maximum of 250 mA at +12 volts DC and 120 mA at -12
volts DC. The power supply current is, in all circumstances, supplied by either a single Comtech EF
Data modem, or a pair of these modems.
This equipment meets the Safety of Information Technology Equipment specification as defined
in EN60950.
Equipment Connection
The CRS-170A is designed for operation ONLY with the Comtech EF Data modems listed in this
manual. These modems supply DC operating current (electronically fused and protected) and
control signals for the correct functioning of this unit. Connection to other manufacturers’
equipment could result in damage to the unit. The CRS-170A is not compatible with other
Comtech EF Data modems not listed in this manual.
Environmental
The CRS-170A must not be operated in an environment where the unit is exposed to extremes of
temperature outside the ambient range 0 to 50
0
C (32 to 122
0
F), precipitation, condensation, or
humid atmospheres above 95% RH, altitudes (un-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.
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