User Manual

2. Installation
2.1 UL Approved for Class I, Division 2 or Zone 2
The ViPR radiomodem is suitable for use in Class I, Division 2, Groups A, B, A, D or non-hazardous
locations. To meet UL compliance, the ViPR unit must be installed in an enclosure and power must be
supplied by a SELV (Safety Extra Low Voltage
), non-energy hazardous source. This device is powered
by a terminal block (
+).
Warning – Explosion Hazard – Do not disconnect while circuit is live unless area is know to be non-
hazardous. Substitution of components may impair suitability for Class I, Division 2 or Zone 2 operation.
2.2 Antenna Installation
2.2.1 Professional Installation & RF Exposure Compliance Requirements
The ViPR radio is intended for use in the Industrial and SCADA market. The ViPR unit must be
professionally installed and must ensure a minimum separation distance of more than 74 in. (188 cm)
between the radiating structure and any person. An antenna mounted on a pole or tower is the typical
installation and in rare instances, a 1/2-wave whip antenna is used.
The ViPR radio uses a low power radio frequency transmitter. The concentrated energy from
an antenna may pose a health hazard. People should not be in front of the antenna when the
transmitter is operating.
RF Exposure
The installer of this equipment must ensure the antenna is located or pointed such that it does not emit an
RF field in excess of Health Canada limits for the general population. Recommended safety guidelines for
the human exposure to radio frequency electromagnetic energy are contained in the Canadian Safety
Code 6 (available from Health Canada) and the Federal Communications Commission (FCC) Bulletin 65.
Notes:
Any changes or modifications not expressly approved by the party responsible for
compliance (in the country where used) could void the user's authority to operate the
equipment.
2.2.2 Antenna Connection
The required antenna impedance is 50 ohms. To reduce potential radio interference, the antenna type and
its gain should be chosen to ensure the effective isotropic radiated power (EIRP) is not more than required
for successful communication.
For installation of ground-plane dependent antennas, the center of the surface used for mounting is
preferable for best omni-directional pattern. For ground-plane independent antennas, installation may be
close to the edges of the mounting surface.
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