Bullhorn RM2000 Series, Руководство по установке и настройке

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RM2000 Series Installation and Configuration Guide
16 RM2020 Installation
3 To ensure uninterrupted service, the location you plan to install the
antenna must meet the following qualifications:
• The area must be clear of all obstructions such as buildings, trees, and
hills.
• The antenna must have a clear line-of-sight facing in the same direction
as the nearest ORBCOMM Gateway Control Center (GES). To
determine which GES is closest to the installation site, visit the
ORBCOMM website at
http://www.orbcomm.com .
• The antenna must be installed at least two (2) feet above the solar panel
to prevent signal interference during data transmissions.
Electrostatic Discharge
Electrostatic Discharge (ESD) can damage electronic components. Provide ESD
protection by wearing an antistatic wrist strap attached to any unpainted metal
surface
before
opening the enclosure door of the unit or handling electronic parts.
If an antistatic wrist strap is unavailable, discharge static electricity from yourself
and your clothing by touching a nearby metal surface before opening the
enclosure door of the unit or handling electronic components.
Ground Connection
Common practice is to ground the shield of the instrument cable at only one end.
Instead, ground the shield drain wire to a suitable ground point at the source of
the signal. This method is intended to drain off electrically induced voltage levels
from external sources in an effort to ensure the most accurate and stable signal.
The shield wire should never be grounded on both ends. If the signal has
unacceptable fluctuation, the system ground should be repaired or improved.
Use the ground lug provided on the antenna/surge arrestor to connect the
ground wire. Connect the other end of the ground wire to an earth grounding
point. Use bare copper wire for the ground wire.