The FGR3 radio offers best-in-class range and reliability, making it a great choice for connectivity to serial devices in the most demanding applications. FGR3 radios are backward compatible with the FGR2, FGR, and DGR Series of FreeWave serial radios, enabling customers to leverage and extend their existing investment.
You need a radio that uses buffers to prevent the gap from seeing the serial port. A lot of radios do this (Data-Linc and FreeWave modems for example) but you will pay more for them (industrial automation communications is a “you get what you pay for” world). Last, with RS232 you don’t connect TX to TX, you connect TX to RX and RX to TX. FGR2 Wireless Data Transceivers FGR2 Transceiver Specifications Specifications may change at any time without notice. For the most up-to-date specifications information, see the product's data sheet available at www.FreeWave.com. FGR2 Transceiver Specifications Specifications for All Models Frequency 902 to 928 MHz...
For that matter you could buy new SRM6030’s (the current version of Data-Linc’s serial modem) or FreeWave’s FGR2-CE modems but it sounds like that’s not a budget friendly solution. That being said if it’s possible to create an ASCII protocol then that might be a good fit as well. Manufacturer: FreeWave. PDF-Datasheet: Download Here. Power/Data Interface cable, 10 wire discrete for FGRO Series board level transceivers, 36 inch length, oriented away from board with 10 Pin connector on one side and straight wire on the other. Oil and Gas and Petrochem February 2013 - Free download as PDF File (.pdf), Text File (.txt) or read online for free.
The FGR2-IOS radio with embedded I/O functions is available in either as board level device or in an enclosure. Both versions can operate in one of two modes: Modbus and Wire Replacement. In the Modbus mode, FGR2-IOS can be directly connected as an I/O peripheral to a SCADA network. For Wire Replacement