
SFP-M
1.25 Gigabit Ethernet-Multimode Transceiver
Page 4 of 6
BLOCK DIAGRAM OF TRANSCEIVER
VCSEL
Driver
MOD_DEF
(0)
(1)
(2)
Post-Amp
TD+
TD-
TX Disable
TX Fault
RD+
RD-
RX_LOS
Pre-
Amp
VCSEL
Electrical Sub-assembly
Optical
Sub-assembly
Duplex LC
Receptacle