MITSUBISHI (OPTICAL DEVICES) MF-622DF-T12-43x/45x.
MF-622DS-R13-241 - SONET/SDH TRANSMITTER & RECEIVER
MITSUBISHI (OPTICAL DEVICES) MF-622DF-T12-43x/45x/46x MF-622DS-R13-24x SONET/SDH TRANSMITTER & RECEIVER DESCRIPTION Transmitter uses uncooled laser .