Campbell Scientific RF450 Spread Spectrum Radio - Manual (Page 8)

RF450 Spread Spectrum Radio
Data Interface:
Protocol RS-232, DCE, CS I/O, ME, and SDC;
user selectable
RS-232 Baud Rate: 1200 bps, 4800 bps, 9600 bps, 19.2 kbps,
38.4 kbps, 57.6 kbps, 115.2 kbps;
user selectable
Connectors DB9
Antenna SMA female connector
External antenna required
Power Requirements:
Voltage 7 to 28 Vdc
Current Transmit 500 mA
Receive 76 mA*
Idle 22 mA*
Sleep 7 mA*
Environmental:
Operating Temperature -40° to +75°C
Dimensions 1.44” x 3.17” x 5.70” (3.66 x 8.05 x 14.48 cm)
1.44” x 3.17” x 7.5” (3.66 x 8.05 x 19.05 cm) with
mounting plate
Weight 0.7 lbs (0.3 kg)
Humidity 0 to 95% non-condensing
FCC ID:
KNY-6231812519
Canada: 2329B-DGR09RAS
3. Configuration
3.1 Theory of Radio Operation
In a point-to-multi-point network (multi-point network) the transceiver
designated as a Master, is able to simultaneously communicate with numerous
Slaves. In its simplest form, a multi-point network functions with the Master
broadcasting its messages to all Slaves and the Slaves responding to the Master
when given data by the datalogger connected to the data port (see Figure 3.1-1).
There may be only one RF450 Master in a network and it must
be connected to a PakBus router. A PakBus router may be
software such as LoggerNet or PC400 or a datalogger configured
as a router. NOTE
2