Gigabit SFP Optical Transceiver Module LC BiDi SFP Module 1.25G 10km 1310nm/1550nm DDM Compatible

Product Summary
The Gigabit Single-Mode BiDi SFP Optical Module supports 1.25Gbps transmission over a single LC fiber up to 10km. Featuring low power consumption, DDM monitoring, hot-pluggable design, and broad compatibility with major networking equipment.
Basic Properties
Place of Origin: China
Brand Name: OEM
Model Number: ATD-S1215-L3310C
Trading Properties
Minimum Order Quantity: 2
Payment Terms: T/T
Supply Ability: 100000/Month
Product Description

The Gigabit Single-Mode Single Fiber (BiDi) SFP Optical Transceiver Module is designed to provide reliable, high-speed optical communication for Gigabit Ethernet and fiber networking applications. Utilizing advanced WDM (Wavelength Division Multiplexing) technology, the module transmits and receives data over a single strand of single-mode fiber, reducing fiber deployment costs while maximizing network efficiency.


Operating at 1.25Gbps, the module complies with IEEE 802.3z 1000Base-BX and SFP MSA standards. It is available in complementary wavelength pairs of TX1310nm/RX1550nm and TX1550nm/RX1310nm, supporting transmission distances of up to 10 kilometers over single-mode fiber.


The compact hot-pluggable SFP form factor enables easy installation and replacement without interrupting network operation. Integrated Digital Diagnostic Monitoring (DDM/DOM) allows real-time monitoring of optical power, module temperature, supply voltage, and laser bias current, helping administrators optimize network performance and simplify maintenance.


Manufactured with premium optical components and strict quality control, the module offers excellent signal stability, low bit error rate, and long service life. It is widely compatible with Ethernet switches, industrial switches, routers, media converters, OLTs, and optical communication equipment from major networking manufacturers.


Ideal for enterprise networks, FTTx deployments, security surveillance, industrial automation, campus networks, ISP infrastructures, and metropolitan fiber networks, this module provides a dependable and cost-effective optical connectivity solution.

Product Features

High-Speed Gigabit Performance

  • Supports 1.25Gbps Gigabit Ethernet
  • Full-duplex optical communication
  • Wire-speed data transmission
  • Low latency operation

Single Fiber BiDi Technology

  • Bidirectional communication over one fiber
  • WDM optical transmission
  • Reduces fiber infrastructure costs
  • Maximizes fiber utilization

5km Transmission Distance

  • Supports up to 10km over single-mode fiber
  • Stable long-distance communication
  • Low optical attenuation
  • Reliable signal integrity

LC Simplex Optical Interface

  • Standard LC simplex connector
  • Easy fiber installation
  • Reliable optical connection
  • High compatibility

Hot-Pluggable SFP Design

  • Supports online insertion and removal
  • Easy maintenance
  • No network downtime during replacement
  • Compact SFP package

Digital Diagnostic Monitoring (DDM)

  • Real-time TX optical power monitoring
  • RX optical power monitoring
  • Module temperature monitoring
  • Supply voltage monitoring
  • Laser bias current monitoring

Wide Equipment Compatibility

  • Ethernet switches
  • Industrial Ethernet switches
  • Managed switches
  • Routers
  • Media converters
  • OLT equipment
  • Fiber transmission systems
  • Compatible with most mainstream network brands

Energy Efficient Design

  • Typical power consumption below 1W
  • Low heat generation
  • High energy efficiency
  • Reduced operating costs

Premium Industrial Reliability

  • High-quality FP laser
  • PIN photodiode receiver
  • Excellent stability
  • Long operating life
  • 24/7 continuous operation

Easy Deployment

  • Plug-and-play installation
  • No software configuration required
  • Fast optical link establishment
  • Maintenance-friendly design

Detailed Technical Specifications

Item Specification
Product Type Gigabit BiDi SFP Optical Transceiver
Form Factor SFP (Small Form-Factor Pluggable)
Data Rate 1.25Gbps
Ethernet Standard IEEE 802.3z 1000Base-BX
Fiber Type Single-Mode Single Fiber (SMF)
Transmission Technology BiDi WDM
Transmission Distance 10km
Optical Connector LC Simplex
TX Wavelength (A) 1310nm
RX Wavelength (A) 1550nm
TX Wavelength (B) 1550nm
RX Wavelength (B) 1310nm
Optical Output Power -9 ~ -3 dBm
Receiver Sensitivity ≤ -23 dBm
Extinction Ratio ≥8.2 dB
Laser Type FP Laser
Receiver Type PIN Photodiode
Power Supply 3.3V
Power Consumption ≤1W
Hot-Pluggable Yes
DDM / DOM Supported
MSA Compliance SFP MSA
Operating Temperature 0°C to +70°C
Industrial Version -40°C to +85°C (Optional)
Storage Temperature -40°C to +85°C
Humidity 5%–95% Non-Condensing
EMC Compliance Yes
Housing Metal Shielded
Certifications CE, FCC, RoHS


Product Details
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Gigabit SFP optical transceiver module

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BiDi SFP module 10km

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LC SFP transceiver with DDM

Ms. Kathy

sales manager

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