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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

Tel: +86-575-88035326

Mobile: +8613626888520

Fax: +86-575-88039030


1.25G Dual Fiber SFP LC

1.25G Dual Fiber SFP LC

1.25Gbps Dual Fiber 80km CWDM SFP LC

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Product Details

1.25Gbps Dual Fiber 80km CWDM SFP LC Transceiver, CWDM DFB laser diode transmitter and PIN receiver


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:

  • LC SFP Single Mode Transceiver

  • CWDM DFB laser diode transmitter and PIN receiver

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

  • Hot-pluggable

  • Single +3.3 Power Supply

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

  • Typical data rate 1.25Gbps

  • Maximal reach 80km

  • RoHS-6 compliance

Product Applications:

  • Gigabit Ethernet

  • Fiber Channel

  • Routers, Hubs or Repeaters

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