Campbell Scientific RF500M Radio Modem - Manual (Page 17)

Section 3. Assembling the Radiotelemetry Network
4. Baud Rate – Set the baud rate for the RS-232 interface.
5. Sleep-Mode Enabled – Determine if sleep mode functionality will be
enabled for RF300 series radios. In all other cases, this setting will be
ignored.
Once the RF500M has been configured, it is ready to be deployed.
3.2.2 Install Base Station
When the RF500M is used in a base station configuration, the PC is attached to
the RS-232 port with a null modem cable. If a digital radio is being used on
the RS-232 port, the CS I/O port can be configured to communicate with the
PC but an SC532(A) and serial cable must be used between the PC and the CS
I/O port of the RF500M.
1. Connect the RF500M to 12 V and ground. Connect the radio to 12 V,
ground, and the RF Modem (RF500M).
Radio transmission without an antenna connected can
damage the radio. CAUTION
2. Mount the base station antenna in a location that is higher than any
surrounding buildings or obstacles. Refer to Section 2.3 for more
information on mounting the antenna.
3. After the antenna is mounted, connect the coax cable between the antenna
and radio.
4. Connect a large gauge (approximately 8 AWG) copper wire from the
antenna to a good earth ground. This is for lightning protection. This is
required for any antenna, especially if the coax cable from the antenna
goes inside a building.
5. Connect a null modem cable from the computer serial port to the RS-232
port of the RF500M. If a digital radio is being used on the RS-232 port,
an SC532 and serial cable can be used between the PC and the CS I/O port
of the RF500M. Set the appropriate configuration options in the RF500M
with Device Configuration Utility depending on the port connected to the
PC.
3.2.3 Install Nearest Repeater/Field Station
Now install the nearest field station. If it communicates with the base station
via a repeater, the repeater station must also be installed. Make sure the correct
RF ID has been configured in the RF500M that is being deployed in the remote
field station or repeater location.
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