MITSUBISHI (OPTICAL DEVICES)
MF-2500DS-T12-18x/19x/20x/21x
MF-2500DS-R13-18x
MF-2500DS-R14-19x/20x/21x
SONET/SDH TRANSMITTER & RECIEVER
BLOCK DIAGRAM
LD Module
: integrated device
VCC
PD
VCC
LD
OPT. OUT
SELC
DATAin
DATAin
CLOCKin
CLOCKin
DRIVER IC
Driver IC
APC IC
Monitoring for back
face current
Monitoring for LD current
Modulation
Control
A.P.C
Transmitter
Laser Degrade Alarm
SDC
DC/DC
APD Control
OPT. IN
APD/PD
Preamp
Amp
Alarm
APD/PD-Preamp Module
AGC Amp
Receiver
: in case of APD version
DATAout
Decider
PLL
Clock recovery IC
DATAout
CLKout
CLKout
Signal Detect