DAVIS Short-Range Modem Pair: Perception, GroWeather, EnviroMon., Monitor, Wizard - Manual (Page 2)

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)