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155M-2.67G BIDI SFP

155M-2.67G BIDI SFP

Optone's high-performance 155M to 2.67G BiDi SFP optical transceivers (also known as WDM SFP) utilize Wavelength Division Multiplexing (WDM) technology to transmit and receive data on a single optical fiber. By operating on contrasting wavelengths (such as 1310nm/1550nm or 1310nm/1490nm), these single-fiber Simplex LC modules effectively double your existing fiber optic capacity and reduce cabling infrastructure costs by 50%.Fully compliant with the SFP MSA and SFF-8472 specifications, this multi-rate portfolio supports standard data rates from 155 Mbps up to 2.67 Gbps, providing superior link stability and carrier-grade reliability for legacy telecom networks and modern access infrastructures.

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155M-2.67G BIDI SFP

Key Features & Technical Advantages

50% Cabling Infrastructure Savings: Bi-directional transmission over a
single optical fiber eliminates the need for expensive duplex fiber pairs.
Flexible Interface Options: Available with either Simplex LC or Simplex SC
receptacles (model dependent) for plug-and-play network deployment.
Multi-Rate Backward Compatibility: Fully compatible with multi-rate
telecommunication transmission links, covering 155M, 1.25G, and 2.5G/2.67Gbps standards.
Industry Standard Compliance: Fully compliant with SFP MSA, SFF-8472
(supports real-time DDM/DOM), and RoHS environmental directives.
Carrier-Grade Protocol Support: Fully compatible with SDH
(STM-1/STM-4/STM-16), SONET (OC-3/OC-12/OC-48), and standard Gigabit Ethernet.
Hot-Pluggable Footprint: Easily swap modules in live routing and switching
systems without interrupting power or active traffic.
Class 1 Laser Safety: Certified to international EN 60825-1 eye safety
standards under a stable 3.3V single power supply.

Target Applications

Gigabit Ethernet & Fast Ethernet: Cost-effective point-to-point fiber
backhaul for enterprise switches, routers, and fiber media converters.
Telecommunication Transmission Networks: Interconnects for SONET/SDH
equipment, MSTP platforms, and metro transmission rings.
Storage Area Networks (SAN): High-speed optical links for multi-rate Fibre
Channel storage configurations.
FTTx & Access Infrastructure: Ideal for optical distribution networks
(ODN), fiber-to-the-home (FTTH) terminal connections, and smart city nodes.

Crucial Pairing Rule for WDM (BiDi) Transceivers

BiDi SFP modules must always be used in complementary pairs (A-End and B-End). An “A-End”
module (TX1310nm/RX1550nm) must be paired with a “B-End” module (TX1550nm/RX1310nm) on the
opposite side of the fiber link to establish communication.

Technical Specifications & Ordering Information

Part Number(A-End) Rate TX Wavelength RX Wavelength Distance Optical Power Rx Sensitivity Connector/Media
SFP-WDM-SM-0120A 155M 1310nm 1550nm 20km -15.0 ~ -8.0 dBm < -33.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0120B 155M 1550nm 1310nm 20km -15.0 ~ -8.0 dBm < -33.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0140A 155M 1310nm 1550nm 40km -9.0 ~ -3.0 dBm < -33.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0140B 155M 1550nm 1310nm 40km -9.0 ~ -3.0 dBm < -33.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0160A 155M 1310nm 1550nm 60km -5.0 ~ 0.0 dBm < -34.0 dBm Single LC/SMF
SFP-WDM-SM-0160B 155M 1550nm 1310nm 60km -5.0 ~ 0.0 dBm < -34.0 dBm Single LC/SMF
SFP-WDM-SM-0180A 155M 1490nm 1550nm 80km -5.0 ~ 0.0 dBm < -34.0 dBm Single LC/SMF
SFP-WDM-SM-0180B 155M 1550nm 1490nm 80km -5.0 ~ 0.0 dBm < -34.0 dBm Single LC/SMF
SFP-WDM-SM-0203A 1.25G 1310nm 1550nm 3km -9.0 ~ -3.0 dBm < -21.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0203B 1.25G 1550nm 1310nm 3km -9.0 ~ -3.0 dBm < -21.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0220A 1.25G 1310nm 1550nm 20km -9.0 ~ -3.0 dBm < -22.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0220B 1.25G 1550nm 1310nm 20km -9.0 ~ -3.0 dBm < -22.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0240A 1.25G 1310nm 1550nm 40km -5.0 ~ 0.0 dBm < -23.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0240B 1.25G 1550nm 1310nm 40km -5.0 ~ 0.0 dBm < -23.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0260A 1.25G 1490nm 1550nm 60km -2.0 ~ +3.0 dBm < -24.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0260B 1.25G 1550nm 1490nm 60km -2.0 ~ +3.0 dBm < -24.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0280A 1.25G 1490nm 1550nm 80km 0.0 ~ +5.0 dBm < -24.0 dBm Single LC or SC/SMF
SFP-WDM-SM-0280B 1.25G 1550nm 1490nm 80km 0.0 ~ +5.0 dBm < -24.0 dBm Single LC or SC/SMF
SFP-WDM-SM-02120A 1.25G 1490nm 1550nm 120km 0.0 ~ +5.0 dBm < -32.0 dBm Single LC/SMF
SFP-WDM-SM-02120B 1.25G 1550nm 1490nm 120km 0.0 ~ +5.0 dBm < -32.0 dBm Single LC/SMF
SFP-WDM-SM-0320A 2.5G 1310nm 1550nm 20km -5.0 ~ 0.0 dBm < -18.0 dBm Single LC/SMF
SFP-WDM-SM-0320B 2.5G 1550nm 1310nm 20km -5.0 ~ 0.0 dBm < -18.0 dBm Single LC/SMF
SFP-WDM-SM-0340A 2.5G 1310nm 1550nm 40km -2.0 ~ +3.0 dBm < -20.0 dBm Single LC/SMF
SFP-WDM-SM-0340B 2.5G 1550nm 1310nm 40km -2.0 ~ +3.0 dBm < -20.0 dBm Single LC/SMF
SFP-WDM-SM-0380A 2.5G 1490nm 1550nm 80km 0.0 ~ +5.0 dBm < -28.0 dBm Single LC/SMF
SFP-WDM-SM-0380B 2.5G 1550nm 1490nm 80km 0.0 ~ +5.0 dBm < -28.0 dBm Single LC/SMF