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DIGI XCite-PKG RF Modem XC09-009PKC-RA (USED)

Data‑Linc SRM6000 900–928 MHz FHSS RS‑232 Serial Spread Spectrum Radio Modem

B&B ELECTRONICS BAMHC BUFFERED ASYNC RS-232/422/485 TO RS-232 MODEM 12V OPEN BOX

SerialComm SER-FIBER-SM-ST Fiber Modem RS-232/485/422

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SerialComm SER-FIBER-SM-ST Fiber Modem RS-232/485/422 Untested