MT2492SMI-34-SP,MODEM V.34 SERIAL DATA 5V
MT2492SMI-92,MODEM V.92 SERIAL DATA 5V
MT2492SMI-92-SP,MODEM V.92 SERIAL DATA 5V
MT2492SMI-L-22,MODEM V.22BIS SERIAL DATA 3.3V
MT2492SMI-L-22-SP,MODEM V.22BIS SERIAL DATA 3.3V
MT2492SMI-L-34,MODEM V.34 SERIAL DATA 3.3V
MT2492SMI-L-34-SP,MODEM V.34 SERIAL DATA 3.3V
MT2492SMI-L-92,MODEM V.92 SERIAL DATA 3.3V