1.25G 40km SFP Transceiver
1.25G BiDi LC 40km SFP Transceiver
BiDi LC SFP Single Mode Transceiver
Compliant with SFP MSA and SFF-8472 with LC receptacle
1550nm DFB Laser for transmitter and 1310nm PIN+TIA for receiver
Single +3.3 Power Supply
Complies with Telcordia (Bellcore) GR-468-CORE
Typical data rate 1.25Gbps
Maximal reach 40km
Routers, Hubs or Repeaters
The products are compliant with the Small Form- Factor Pluggable (SFP) Multi-Source Agreement (MSA) and SFF-8472. The Digital Diagnostic Monitoring functions as described in SFF-8472 are provided via an I2C serial interface. The transceiver block diagram is shown as below Fig 1.
The module provides digital diagnostic information of its operating conditions and status, including transmitting power, laser bias, receiver input optical power, module temperature, and supply voltage. Calibration and alarm/warning threshold data are written and stored in internal memory (EEPROM). The
memory map is compatible with SFF-8472, as shown in Fig. 2. The diagnostic data are raw A/D values and must be converted to real world units using calibration constants stored in EEPROM locations 56 – 95 in A2h.