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DAVIS SPREAD-SPECTRUM RADIO MODEM Manual page 22

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3. Secure the RM to the mounting plate using the Velcro strap.
Make sure the feet on the RM sit in the holes in the mounting plate.
4. Connect the appropriate adapter to the DB-25 connector on the RM.
If this RM is the base station, attach the PC RADIO DB-25 Adapter (L2). If
this RM is a field station, attach the Phone Modem Adapter (L1).
5. Connect the co-axial cable from the antenna to the BNC connector on the RM (routing
the antenna cable through one of the strain reliefs at the bottom of the shelter), as
shown below.
If using the Radio Surge Protector, connect the antenna cable to the
ANTENNA side of the protector and use the co-axial cable supplied with
the Radio Surge Protector to connect to the EQUIPMENT side of the protec-
tor and to the BNC connector on the RM.
6. Connect to the computer (base station) or the WeatherLink (field station) as shown
below.
If this is a base station within 40' (12 m) of the computer,
connect one end of the 40' (12 m) standard 6-conductor
cable (supplied with the WeatherLink) the PC RADIO DB-
25 Adapter (L2. Connect the other end of the cable to the
PC COM Port Adapter (attached to the computer).
If this is a base station located more than 40' (12 m) from
the computer, connect one end of the 4' modular cable to
the PC RADIO DB-25 Adapter (L2). Connect the other end
of the cable to the Radio/SR Modem Adapter (attached to
the Short-Range Modem).
Page 22
Velcro Strap
Feet of Radio
in Holes of
Mounting Plate
Spread-Spectrum Radio Modem Installation Kit

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