Product picture - Meridian Technologies Series 1300i PXB1300IR-0D 1-Channel Full Duplex RS-232 Side-B Transceiver with Diagnostic Support Meridian, Technologies, Series, 1300i, PXB1300IR-0D, 1-Channel, Full, Duplex, RS-232, Side-B, Transceiver, with, Diagnostic, Support Click the image to close this page