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CRS-170 1:1 Redundancy Switch
Installation and Operations Manual
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.
Note: 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.
S
C
AFETY
OMPLIANCE
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 CDM-600 modem, or a pair of these
modems.
This equipment meets the Safety of Information Technology Equipment specification as
defined in EN60950.
E
C
QUIPMENT
ONNECTION
The CRS-170 is designed for operation ONLY with Comtech EF Data modems. These
modems supply DC operating current (electronically fused and protected) and control
signals for the correct functioning of this unit. Connection to other manufacturer's
equipment could result in damage to the unit. The CRS-170 is not compatible with other
Comtech EF Data modems.
11
Revision 1
MN/CRS170.IOM
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