DAVIS SPREAD-SPECTRUM RADIO MODEM, Руководство пользователя

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Components Page 3
Installation Kit Without Antenna (#7632-912)
This kit provides all necessary hardware to mount and use a third-party Yagi
antenna, such as the 12dB Directional (Yagi) Antenna (available from YDI:
model 918-10), which allows a greater transmission distance than the Davis-
supplied 8.5dB antenna (#7632-008).
Power Components
You will need to supply power to the RM site, using one of the following
options.
✦
If AC power is available at the RM site, use the power adapter supplied with this
kit.
✦
If AC power is not available or if you want to use solar power, use the Solar Power
Kit (#7708) and 6.5-Amp-Hour Battery (#7711).
If solar power is used, it will be necessary to switch the power to the RM
so that it is on for only limited periods in order to conserve the power
drawn. Two alternatives are available:
✦ Alarm Output Module (#7736)
✦ Timer (#7682)
The Timer is recommended unless the Alarm Output Module is
required for other purposes.
WeatherLink Components
You will need the following item from your WeatherLink package:
✦
PC COM Port Adapter
On older versions of the WeatherLink, this adapter was labelled AT
Adapter.
2-3/8" U-Bolts & Hardware
1-1/4" U-Bolts & Hardware
Antenna Mast
Brackets
Antenna Cable,
N-to-BNC
1/4" x 1-1/2" Lag Screws