DAVIS GroWeatherLink Software - Manual (Page 11)

H A R D W A R E I N S T A L L A T I O N
Labeling Your Cables
4
Phone Modem Connection Hardware Requirements
In addition to the provided hardware, check that you have the following items.
▲ GroWeatherLink/ET Data Logger
▲ Computer running Windows™ 3.1, NT, or 95 with at least 5 MB of free disk space, 4MB
of RAM, and one free serial port
See “Direct Connection Hardware Requirements” on page 3 for an explana-
tion of hard disk requirements.
▲ One external modem to connect to the WeatherLink
The modem must be Hayes
®
compatible and run at either 1200 or 2400 baud.
▲ One internal modem or external modem connected to your computer
The modem must be Hayes compatible and run at either 1200 or 2400 baud.
▲ Telephone Modem Adapter
The Telephone Modem Adapter (#7870) provides the connection between the
WeatherLink and the modem.
Radio Multi-Point Connection Hardware Requirements
In addition to the provided hardware, check that you have the following items.
▲ GroWeatherLink/ET Data Logger
▲ Computer running Windows™ 3.1, NT, or 95 with at least 5 MB of free disk space, 4MB
of RAM, and one free serial port
See “Direct Connection Hardware Requirements” on page 3 for an explana-
tion of hard disk requirements.
▲ Spread spectrum or UHF radio modems for each weather station and base station
Davis recommends some excellent third-party radio modems: YDI Spread
Spectrum Radio Modem (available at YDI, #910-DAVIS), and RF Neulink
UHF radio modem (available at RF Neulink, #9600).
▲ One Antenna/Installation Kit for each radio modem - optional
The Antenna/Installation Kits include the hardware necessary to connect a
radio modem to a WeatherLink data logger at the field site or to a personal
computer at the base site.
L A B E L I N G Y O U R C A B L E S
Use the label sheets provided with your GroWeather to mark your WeatherLink
cables before you begin installation.
Make sure you label every cable end, includ-
ing extension cables. Doing this now will help prevent confusion during the
installation and if you ever need to disconnect a cable at a later date.
▲ Place the C3/LINK label on the end of the short cable coming from the WeatherLink.
▲ Place the LINK/L1 label on the end of the long cable coming from the WeatherLink.
▲ Place a L2/LINK to PC/PC label on each end of the 40-foot (12-m) WeatherLink cable.
This cable runs from the isolator unit to the computer or external modem. On
one end of the cable, orient the label so L2 is closest to the end of the cable. On
the other end, orient the label so PC is closest to the end of the cable.