MODEL 50386R/D-RP : Receiver/Decoder and Repeater
The HydroLynx Model 50386R/D-RP Receiver/Decoder and Repeater combines the features
of an ALERT Receiver/Decoder with a repeater. The Alert Receiver/Decoder receives
ALERT data transmissions from the remote site and provides an RS232 output to the
central site computer. The ALERT repeater re-transmits received ALERT reports and
can also transmit control commands from the central site computer. The 50386 multiple
communication pathway feature provides the ability to process and re-format data.
This enables data sharing across various data collection systems.
As an intelligent decoder, the 50386D-RP validates the data, in the formats that
are enabled, before processing the data for output or repeating. These formats include
standard ALERT, Enhanced IFLOWS, ASCII text, ScadaLynx and Modbus. As part of the
processing, the 50386D-RP has a programmable list of ID numbers to compare received
reports ID numbers and decide whether to output the data.
The two way communication feature of the 50386D-RP Repeater allows it to send control
commands and to poll remote stations over SCADA networks.
The Receiver/Decoder and Repeater are housed in separate enclosures which allows
the Receiver/Repeater to be located near the antenna tower and the Decoder to be
placed at the central site location. Locating the Receiver/Repeater at the Antenna
tower reduces the length of the RF transmission line and the associated RF signal
loss, and eliminates the potential damage due to lightning entering the central site
on the RF transmission line.
HydroLynx recommends the use of a high gain omni antenna at the central site receive
tower to increase radio path fade margins. Antenna and RF transmission line cables
are ordered separately (refer to the Antenna and Antenna Cable Sections).