Campbell Scientific PConnect Software for Palm™ OS PDAs - Manual (Page 12)

PConnect for the Palm Handheld
The cable is connected between the PDA’s cable and the datalogger’s serial
port (similar to the figure above).
3.2 RF400 Radio Communication
Two RF400 radios can be used to communicate with the datalogger using the
Palm handheld (or one RF radio and a CR205). With this setup, the PDA to
CS I/O connector is not used.
At the datalogger site, the CS I/O ports of the RF400 radio and the datalogger
are connected using an SC12 or similar cable. Power for the RF400 is
supplied by the datalogger's CS I/O port pin 8, which supplies 12 V.
The Palm device is connected to the base RF400 radio by using the PDA to
RS-232 cable between the Palm's serial connection and the RF400's RS-232
port. An external power source will be needed for the RF400 base radio, since
it cannot be powered by the Palm device.
Power supplies can be purchased from Campbell Scientific. The RF400 Base
Station Kit (P/N 14220) provides an AC to 12V DC transformer for the
RF400. The Field Power Cable (P/N 14291) provides a 12V DC barrel plug
on one end for connection to the RF400 and two pigtails on the other end for
use with other power supplies such as a vehicle's 12V cigarette lighter
accessory.
The communications protocol for the RF4xx radios must be set to Transparent
mode. PConnectCE was not designed to function as a PakBus Node or work
in a PakBus Aware network.
3.3 IR Communication
Campbell Scientific's SC-IRDA infrared interface device can be used to
communicate with the datalogger using the Palm device's IR port and the
datalogger’s CS I/O port. The SC-IRDA connects directly to the datalogger's
CS I/O port; the PDA to CS I/O connector is not used. Best performance is
seen when the Palm is within three feet of the SC-IRDA and the two IR ports
are directly aligned. The two ports must be aligned for a second or two, prior
to attempting communication, to allow the two IR devices to acknowledge
each other.
IR communication is not available for CR200 Series dataloggers. NOTES
Some less expensive PDAs use an IR chip that is not compatible
with the SC-IRDA interface. Contact Campbell Scientific for
compatible chip sets.
3.4 Bluetooth
If the PDA you are using is capable of Bluetooth communication, a third party
Bluetooth to serial adapter can be used to communicate with the datalogger.
The adapter must be configured as Discoverable (inquiry scan) and
Connectable (page scan); i.e., as a “slave” device. Most adapters are
configured by default as peer-to-peer devices, and therefore must be
reconfigured. Some adapters include software that is used to configure the
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