Campbell Scientific RF450 Spread Spectrum Radio - Manual (Page 33)

Appendix A. Installation Scenarios
Slave Radio Settings:
FIGURE A.2-4. DevConfig Screen Showing Slave Radio Settings for Example 2
The Device Map in LoggerNet's Setup screen will look something like this:
A.3 Example 3: PC-to-RF Network with Parallel
Repeaters (using the SubNet ID)
In this example, the Master radio is connected to a PC running LoggerNet (see
Figure A.3-1 and Table A.3-1). One stand-alone repeater (Repeater 1) is used
to access several Slave radios connected to CR1000s in the field. The stand-
alone repeater consists of an RF450, power supply, and antenna. Another
repeater (Slave/Repeater 2) connected to a CR1000 is used to access several
other Slave radios on CR1000s.
To take advantage of the low power mode, those devices that are NOT
repeaters should be configured as multi-point Slaves and not as multi-point
Slave/repeaters. In this configuration, it may be desirable to use an external
omni directional antenna at the repeaters.
When a repeater is used, the RF throughput is cut in half. When more than one
repeater is used there is no further degradation in the RF throughput of the link.
Throughput is the rate at which data is sent or received. Reducing throughput
means less data can be transmitted in a specified amount of time.
Remember, each datalogger must have a unique PakBus Address.
A-5