MT2456SMI-22.R2
Manufacturers：
Multi-Tech Systems, Inc.
Description：
MODEM V.22BIS SERIAL DATA 5V
MT2456SMI-22.R3
Manufacturers：
Multi-Tech Systems, Inc.
Description：
MODEM V.22BIS SERIAL DATA 5V
MT2456SMI-L-22.R2
Manufacturers：
Multi-Tech Systems, Inc.
Description：
MODEM V.22BIS SERIAL DATA 3.3V
MT2456SMI-L-22.R3
Manufacturers：
Multi-Tech Systems, Inc.
Description：
MODEM V.22BIS SERIAL DATA 3.3V