Campbell Scientific RF310, RF312, RF313 Narrowband Radios - Manual (Page 52)

Appendix B. Alternate Base Station Configurations
B-4
RF310M
RF310/312
FIGURE B-1. Portable Base Station
B.3 Phone-to-RF Base Station with Measurement
Capability
When it is desired to have a datalogger at a phone-to-RF base station, the
datalogger must be a CR10, CR10X, CR23X, CR510, or CR500 and the RF310M
must be in the RF310M-SDC State. This configuration is used when the computer
uses a phone modem to call the RF base station which is also being used as a field
station (because measurements are being made at the station). The configuration is
shown in Figure B-3.
The Device Map in the Setup Window of PC208W must include the following
interface devices: COM Port, Phone Modem, Datalogger, RF Modem, and
finally each Datalogger field site. The Phone number and RF Path must be set.
The COM200 Phone Modem and the RF310M are connected to and powered by
the Datalogger. The RF310M Station ID at the phone-to-RF base station does
not have to be 255 in this case. This is because the Datalogger will automatically
hold the Modem Enable line high, not being reliant on the RF310M.
The datalogger at the base station should have security set. See the Datalogger
manual for the details of security. With security set, a pass-word (number) is
required before data can be collected. Without security set, data can
inadvertently be collected from the base Datalogger if an RF link fails during
communication with another datalogger.
The following PC208W windows show a typical phone to RF with
measurement setup.