Davis Short-Range Modem Pair: Perception, GroWeather, En Manual de usuario Pagina 2

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Page 2 Short-Range Modem Pair
T
OOLS
AND
M
ATERIALS
N
EEDED
FOR
I
NSTALLATION
In addition to the components listed above, you may need the following tools
and materials. Please be sure you have everything you need before beginning
the installation.
Rev. D (or later) WeatherLink Data Logger
All GroWeatherLinks, Health WeatherLinks, and Energy WeatherLinks
use the Rev. D (or later) WeatherLink data logger. If you intend to attach
the SR Modem to Davis’ Perception
®
, Weather Wizard III
®
, Weather
Wizard II-S
®
or Weather Monitor II
®
, you need to be sure that you have a
Rev. D (or later) WeatherLink. Check the manufacturing code on the
underside of the WeatherLink; if it begins with the letter(s) L, LB, or LC,
contact Davis for information on swapping your WeatherLink for the lat-
est version.
2-Twisted-Pair Cable
You will need a length of 2-twisted-pair cable to run between the
SR Modems. Consult the table below to determine the maximum cable
run for either 22 or 19 AWG cables.
Small Screwdriver
Wire Cutter
Wire Stripper or Knife
L
ABELLING
Y
OUR
C
ABLES
Before beginning the installation, consult your WeatherLink user’s guide for
instructions on labeling the WeatherLink cables.
AWG
M
AXIMUM
C
ABLE
R
UN
22
4 Miles (6.4 km)
19
7 Miles (11 km)
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