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Shaoxing ZKTel Equipment Co.,Ltd

Address:The Intersection of Sanjiang Road and Paozhong Road, Paojiang Industrial Zone, Shaoxing City, Zhejiang Prov.,China 312071

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3.125G 80km CWDM SFP

3.125G 80km CWDM SFP

3.125Gbps 80km CWDM SFP Single Mode LC

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Product Details

3.125Gbps 80km CWDM SFP Single Mode LC


The SFP transceivers consists of three sections: an uncooled CWDM DFB laser transmitter, an APD photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. 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.


Product Features:

  • 18 CWDM wavelengths available

  • LC SFP Single Mode Transceiver

  • Compliant with SFP MSA and SFF-8472 with LC receptacle

  • Hot-pluggable

  • Single +3.3 Power Supply

  • Complies with Telcordia (Bellcore) GR-468-CORE

  • Up to 3.125Gbps data links

  • Maximal reach 80km

  • RoHS-6 compliance

Product Applications:

  • Fiber Channel

  • SDH STM-16 or SONET OC-48

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