English
155Mbps ~ 2.67Gbps BiDi SFP
155Mbps ~ 2.67Gbps BiDi SFP
155Mbps ~ 2.67Gbps BiDi SFP
155Mbps ~ 2.67Gbps BiDi SFP
155Mbps ~ 2.67Gbps BiDi SFP
155Mbps ~ 2.67Gbps BiDi SFP
Product details
Essential details
Product Code:155Mbps ~ 2.67Gbps BiDi Multi-Rate SFP
Product Introduction
155Mbps ~ 2.67Gbps BiDi SFP Transceiver | Single Fiber WDM SFP Optical Module

Product Overview

This multi-rate BiDi SFP transceiver series delivers single-fiber bidirectional optical transmission via WDM wavelength multiplexing technology, supporting full speed ranges: 155Mbps (OC-3/STM-1), 1.25Gbps (Gigabit Ethernet), 2.5Gbps (OC-48/STM-16), max operating rate up to 2.67Gbps. As cost-saving single fiber SFP modules, BiDi transceivers cut fiber cabling consumption by 50%, perfectly solving fiber resource shortage problems for ISP, campus, data center and metro carrier networks.

All BiDi SFP modules fully comply with SFP MSA and SFF-8472 DDM digital diagnostic standards, compatible with SDH/SONET synchronous transport, Gigabit Ethernet and Multi-Rate Fibre Channel protocols. The product portfolio covers short 3km, medium 20/40km and ultra-long 60/80/120km single-mode fiber reach, available in commercial temperature (0~70℃) and industrial temperature (-40~85℃) versions. Low power consumption, stable optical power budget and high receiving sensitivity guarantee ultra-low bit error rate for long-distance single fiber links.

Important Note for BiDi SFP

BiDi single fiber SFP transceivers must be used in matched A/B pairs: A-type module transmits short wavelength (1310nm/1490nm) while B-type transmits complementary long wavelength (1550nm). Mismatched wavelength pairs will cause communication failure.

Core Key Features

  • Multi-rate BiDi SFP transceiver: 155M / 1.25G / 2.5G, maximum data rate 2.67Gbps single fiber WDM module
  • Single strand SMF bidirectional transmission, halve fiber cabling cost & expand existing fiber capacity
  • Fully compliant with SFP MSA, SFF-8472 DDM digital diagnostic monitoring for real-time network troubleshooting
  • Class 1 laser product, meets EN 60825-1 international laser safety certification
  • Simplex LC or SC optical connector options, hot-pluggable SFP design for quick field replacement
  • Single 3.3V DC power supply, ultra-low power dissipation for high-density switch port deployment
  • Dual temperature grade: Commercial 0℃~+70℃ / Industrial -40℃~+85℃ BiDi SFP optical module
  • Complete long-reach lineup: 3km / 20km / 40km / 60km / 80km / 120km single mode fiber transmission
  • Cross-brand universal compatibility with mainstream switches, routers, SDH multiplexers, media converters and storage SAN equipment
  • RoHS compliant, stable transmit optical power & high receiving sensitivity for long haul single fiber links
  • Wavelength pairs: 1310/1550nm, 1490/1550nm for different distance transmission requirements

Main Application Scenarios

  1. FTTH, ISP access network, fiber to the building single fiber interconnection
  2. Gigabit Ethernet enterprise campus LAN, factory industrial fiber communication
  3. SONET / SDH carrier-grade metro & long-distance transmission equipment interlink
  4. Multi-Rate Fibre Channel and Storage Area Network (SAN) single fiber connection
  5. Data center access layer, cabinet interconnection with limited fiber resources
  6. CCTV fiber surveillance, remote industrial control optical links
  7. General single-fiber bidirectional optical transmission system

Full Standard Model List

Naming Rule Explanation
A: TX1310 / TX1490 upstream module
B: TX1550 downstream matching module
SM: Single Mode Fiber, Simplex LC/SC connector

1. 155Mbps BiDi SFP Transceiver

Standard Industry ModelRateTX WavelengthMax DistanceTx Optical PowerRx SensitivityInterface
SFP-BIDI-155M-1310-20KM-SM-A155M1310nm20km-15 ~ -8dBm≤ -33dBmSimplex LC/SC
SFP-BIDI-155M-1550-20KM-SM-B155M1550nm20km-15 ~ -8dBm≤ -33dBmSimplex LC/SC
SFP-BIDI-155M-1310-40KM-SM-A155M1310nm40km-9 ~ -3dBm≤ -33dBmSimplex LC/SC
SFP-BIDI-155M-1550-40KM-SM-B155M1550nm40km-9 ~ -3dBm≤ -33dBmSimplex LC/SC
SFP-BIDI-155M-1310-60KM-SM-A155M1310nm60km-5 ~ 0dBm≤ -34dBmSimplex LC
SFP-BIDI-155M-1550-60KM-SM-B155M1550nm60km-5 ~ 0dBm≤ -34dBmSimplex LC
SFP-BIDI-155M-1490-80KM-SM-A155M1490nm80km-5 ~ 0dBm≤ -34dBmSimplex LC
SFP-BIDI-155M-1550-80KM-SM-B155M1550nm80km-5 ~ 0dBm≤ -34dBmSimplex LC



2. 1.25Gbps BiDi SFP Transceiver (1000BASE-BX)

Standard Industry ModelRateTX WavelengthMax DistanceTx Optical PowerRx SensitivityInterface
SFP-BIDI-1.25G-1310-3KM-SM-A1.25G1310nm3km-9 ~ -3dBm≤ -21dBmSimplex LC/SC
SFP-BIDI-1.25G-1550-3KM-SM-B1.25G1550nm3km-9 ~ -3dBm≤ -21dBmSimplex LC/SC
SFP-BIDI-1.25G-1310-20KM-SM-A1.25G1310nm20km-9 ~ -3dBm≤ -22dBmSimplex LC/SC
SFP-BIDI-1.25G-1550-20KM-SM-B1.25G1550nm20km-9 ~ -3dBm≤ -22dBmSimplex LC/SC
SFP-BIDI-1.25G-1310-40KM-SM-A1.25G1310nm40km-5 ~ 0dBm≤ -23dBmSimplex LC/SC
SFP-BIDI-1.25G-1550-40KM-SM-B1.25G1550nm40km-5 ~ 0dBm≤ -23dBmSimplex LC/SC
SFP-BIDI-1.25G-1490-60KM-SM-A1.25G1490nm60km-2 ~ 3dBm≤ -24dBmSimplex LC/SC
SFP-BIDI-1.25G-1550-60KM-SM-B1.25G1550nm60km-2 ~ 3dBm≤ -24dBmSimplex LC/SC
SFP-BIDI-1.25G-1490-80KM-SM-A1.25G1490nm80km0 ~ 5dBm≤ -24dBmSimplex LC/SC
SFP-BIDI-1.25G-1550-80KM-SM-B1.25G1550nm80km0 ~ 5dBm≤ -24dBmSimplex LC/SC
SFP-BIDI-1.25G-1490-120KM-SM-A1.25G1490nm120km0 ~ 5dBm≤ -32dBmSimplex LC
SFP-BIDI-1.25G-1550-120KM-SM-B1.25G1550nm120km0 ~ 5dBm≤ -32dBmSimplex LC


3. 2.5Gbps BiDi SFP Transceiver (Max 2.67Gbps)

Standard Industry ModelRateTX WavelengthMax DistanceTx Optical PowerRx SensitivityInterface
SFP-BIDI-2.5G-1310-20KM-SM-A2.5G1310nm20km-5 ~ 0dBm≤ -18dBmSimplex LC
SFP-BIDI-2.5G-1550-20KM-SM-B2.5G1550nm20km-5 ~ 0dBm≤ -18dBmSimplex LC
SFP-BIDI-2.5G-1310-40KM-SM-A2.5G1310nm40km-2 ~ 3dBm≤ -20dBmSimplex LC
SFP-BIDI-2.5G-1550-40KM-SM-B2.5G1550nm40km-2 ~ 3dBm≤ -20dBmSimplex LC
SFP-BIDI-2.5G-1490-80KM-SM-A2.5G1490nm80km0 ~ 5dBm≤ -28dBmSimplex LC
SFP-BIDI-2.5G-1550-80KM-SM-B2.5G1550nm80km0 ~ 5dBm≤ -28dBmSimplex LC


Technical Specifications

  1. Multi-Rate Support: 155Mbps / 1.25Gbps / 2.5Gbps, up to 2.67Gbps adaptive
  2. Mechanical Standard: SFP form factor, fully SFP MSA compliant
  3. Digital Monitoring: SFF-8472 DDM/DOM real-time monitoring of temp, Tx power, Rx power, voltage
  4. Laser Safety: Class 1 laser, EN 60825-1 safety standard certified
  5. Power Input: Single 3.3V DC power supply, low power consumption
  6. Optical Interface: Simplex LC or Simplex SC connector, single mode fiber (SMF) only
  7. Temperature: Commercial Grade: 0℃ ~ +70℃; Industrial Grade: -40℃ ~ +85℃
  8. Hot Swap: Support hot-plug insertion & removal without power shutdown
  9. Protocol Compatibility: SDH, SONET, Gigabit Ethernet, Multi-Rate Fibre Channel, ATM
  10. Compliance: RoHS, MSA standard, cross-brand compatible with mainstream network hardware

Why Choose This BiDi SFP Single Fiber Transceiver?

  1. Save 50% fiber resource: Single fiber bidirectional transmission, ideal for fiber-limited projects to avoid costly fiber laying
  2. Full rate & full distance coverage: 155M to 2.67G, 3km short reach to 120km ultra-long haul, one-stop BiDi SFP sourcing
  3. Built-in DDM diagnostic function: Real-time monitoring simplifies on-site fiber fault detection & maintenance
  4. Dual temperature options: Commercial grade for indoor data center, industrial grade for outdoor telecom cabinet & harsh factory environment
  5. Universal MSA compatible: Plug-and-play with most brand switches, routers, media converters and SDH multiplexers
  6. Strict optical performance calibration: Stable transmit power & high receiving sensitivity, ensure reliable long-distance single fiber links
  7. Flexible connector options: Simplex LC for high-density rack deployment, Simplex SC for traditional FTTH access equipment
  8. Complete wavelength matching pairs: Standard 1310/1550nm & long-distance 1490/1550nm wavelength combinations for different optical budget demands
Product details
155Mbps ~ 2.67Gbps BiDi SFP