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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

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1.25G CWDM SFP LC 20km

1.25G CWDM SFP LC 20km

1.25Gbps Dual Fiber 20km CWDM SFP LC Transceiver

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Product Details


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


Single +3.3 Power Supply

Complies with Telcordia (Bellcore) GR-468-CORE

Typical data rate 1.25Gbps

Maximal reach 20km

RoHS-6 compliance

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