Antenna and antenna cable installation – Rockwell Automation 1748 DataSite Configured Panel Installation Instructions User Manual
Page 21
Publication 1748-IN001B-EN-P - May 2009
Install and Wire the Panel 21
Antenna and Antenna Cable
Installation
Use only antennas approved by radio manufacturers.
The following are some common types of antennas:
•
Directional (yagi, parabolic)
•
Omni-directional (dipole)
Gain is specified in dBd or dBi and achieved by directing (focusing) radio
frequency (RF) emission. Emission patterns must be considered such that
other sites are within the focused area.
Antenna cables should be selected to match required length. Coiling of excess
cables can increase dB loss and should be avoided. To help prevent installation
issues, it is recommended that you purchase pre-fabricated cables.
Lightning arrestors are always recommended for outdoor applications and
should be installed near the radio. A lightning arrestor is supplied when a radio
is purchased.
For more details on antenna or antenna cable installation, visit
.
Typical Antenna Mounting Installation
Antenna coax to
lightning arrestor
Antenna coax to
lightning arrestor
Ground
Ground
RF signal direction
N Type male connector
N Type male
connector
Mounting
hose clamps
44745