120 40520-100a
ViPR User Manual
15
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 lo-
cations. To meet UL compliance, the ViPR unit must be installed in an enclosure and power must be sup-
plied 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 profes-
sionally installed and must ensure a minimum separation distance between the radiating structure and any
person of more than 74 in (188 cm) for UHF (406.1-512 MHz frequencies) or more than 86 in (218 cm)
for VHF (136-174 MHz frequencies). 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.
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 com-
pliance (in the country where used) could void the user's authority to operate the equip-
ment.
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 pref-
erable for best omni-directional pattern. For ground-plane independent antennas, installation may be close
to the edges of the mounting surface.
RF Exposure
