Campbell Scientific RF401-series and RF430-series Spread Spectrum Data Radios/Modems - Manual (Page 99)

Appendix I. Phone to RF401 Series
b. Remote RF401s
1) Radio Addresses: 1, 2, etc. (unique for each remote RF401 and
must agree with respective RF401Remote settings)
2) Protocol: Transparent
3) CS I/O Baud Rate: 9600
4) All other settings: default
If there is a neighboring RF401 network, you should change the
Hopping Sequence of base and remote RF401s to a new setting to
avoid interference.
FIGURE I-5. LoggerNet Point-to-Multipoint Setup
NOTE
I-9