HC’s SF-CXX42-40D(A) Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the DFB laser and the PIN receiver .The module data link up to 40KM in 9/125um single mode fiber.

The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.

         KEY  Features

         Up to 4.25Gb/s data links

         DFB laser transmitter and PIN receiver

         Up to 40km on 9/125μm SMF

         Hot-pluggable SFP footprint

         Duplex LC/UPC type pluggable optical interface

         Low power dissipation

         Metal enclosure, for lower EMI

         RoHS compliant and lead-free

         Single +3.3V power supply

         Support Digital Diagnostic Monitoring interface

         Compliant with SFF-8472

         Case operating temperature

Commercial: 0°C to +70°C

Industrial: -40°C to +85°C

         Application

         1000 Base-LX Ethernet

         4xFC at 4.25Gbps

         2xFC at 2.125 Gbps

         1xFC at 1.0625Gbps