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Cisco Sfp Transceiver Module 1.25G SFP Module Single Mode 20km 1310nm 1550nm DDM

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Cisco Sfp Transceiver Module 1.25G SFP Module Single Mode 20km 1310nm 1550nm DDM
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Application: FTTH
Color: Silvery
Distance: 20km
Type: Single Mode Single Fiber Bi-directional Transmission
Product Name: 1.25g Bidi Sfp Optical Module
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1.25G Cisco SFP Transceiver Module


1310nm Cisco SFP Transceiver Module


1550nm Cisco SFP Transceiver Module

Basic Infomation
Place of Origin: Guangdong, China
Brand Name: Olycom
Certification: CE RoHS FCC ISO9001
Model Number: OSBL1G20D-35/53
Payment & Shipping Terms
Packaging Details: 1pc in a box
Delivery Time: 3~5 working days
Payment Terms: T/T, PayPal
Supply Ability: 5000pcs/month
Product Description

1.25G Cisco Sfp Transceiver Module 20km 1310nm 1550nm 


OLYCOM’s OSBL1G20D-35 Transceivers are a high performance, cost effective module which have a single LC optics interface. They are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) and Digital diagnostics functions are available via the 2-wire serial bus specified in SFF-8472. The receiver section uses a PIN receiver and the transmitter uses a 1310 nm FP laser, up to 14dB link budge ensure this module 1000Base-LX Ethernet 20km application.


Absolute Maximum Ratings

Parameter Symbol Min Max Unit
Supply Voltage Vcc -0.5 4.5 V
Storage Temperature Ts -40 +85 °C
Operating Humidity - 5 85 %


Recommended Operating Conditions

Parameter Symbol Min Typical Max Unit
Operating Case Temperature Standard Tc 0   +70 °C
Extended -20   +80 °C
Industrial -40   +85 °C
Power Supply Voltage Vcc 3.135 3.30 3.465 V
Power Supply Current Icc     300 mA
Data Rate   0.1 1.25   Gbps


Optical and Electrical Characteristics

Parameter Symbol Min Typical Max Unit Notes
Centre Wavelength λc 1260 1310 1360 nm  
Spectral Width(RMS) Δλ     3 nm  
Side-Mode Suppression Ratio SMSR - - - dB  
Average Output Power Pout -9   0 dBm 1
Extinction Ratio ER 9.0     dB  
Data Input Swing Differential VIN 180   1200 mV 2
Input Differential Impedance ZIN 90 100 110 Ω  
TX Disable Disable   2.0   Vcc V  
Enable   0   0.8 V  
TX Fault Fault   2.0   Vcc V  
Normal   0   0.8 V  
Centre Wavelength λc 1530 1550 1570 nm  
Receiver Sensitivity       -23 dBm 3
Receiver Overload   -1     dBm 3
LOS De-Assert LOSD     -24 dBm  
LOS Assert LOSA -38     dBm  
LOS Hysteresis   0.5   4 dB  
Data Output Swing Differential Vout 600 800 1000 mV 4
LOS High 2.0   Vcc V  
Low     0.8 V  

Ordering information

Part Number Product Description
OSBL1G20D-35 1310T/1550R, 1.25Gbps, LC, 20km, 0°C~+70°C, with DDM
OSBL1G20DI-35 1310T/1550R, 1.25Gbps, LC, 20km, -40°C~+85°C, with DDM






Cisco Sfp Transceiver Module 1.25G SFP Module Single Mode 20km 1310nm 1550nm DDM 0




² Up to 1.25Gb/s Data Links

² Hot-Pluggable

² Single LC connector

² Up to 20 km on 9/125μm SMF

² 1310nm FP laser transmitter

² 1550nm PIN photo-detector

² Single +3.3V Power Supply

² Monitoring Interface Compliant with SFF-8472

² Maximum Power <1W

² Industrial /Extended/ Commercial operating temperature range: -40°C to 85°C/-5°C to 85°C/-0°C to 70°C Version available

² RoHS compliant and Lead Free



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Tel : 86-755-26611509
Fax : 86-755-83129773
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