155M Duplex SFP

155M SFP Fiber Optic Transceiver Module 1550nm 120km Duplex LC SMF DDM | FLD-S155-SMD-120 | Fiberland

155M SFP Duplex 1550nm 120km

Rate155MReach120kmWavelength1550InterfaceDUPLEX LC
Fiberland part number
FLD-S155-SMD-120
Unit price22.00USD / piece

Key Specifications

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Form TypeSFP

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Technical Specifications

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14 specifications shown
Fiberland Part NumberFLD-S155-SMD-120Vendor NameFIBERLAND
Data Rate155MWavelength1550
Reach120kmForm TypeSFP
Optical InterfaceDUPLEX LCDDM SupportYES
Commercial Temp.0~70℃Industrial Temp.-40~85℃
Compatible BrandsCisco,Huawei,Nvidia...200+ brandsComplianceCE,FCC,ROHS,REACH
Warranty3 YearsModeSM

Product Compatibility Mapping

Cross-reference the original manufacturer part number with the corresponding Fiberland part number before confirming the target device and firmware.

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Verified cross-references1 manufacturer part numberAcross 1 brand
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Original part numberBrandFiberland part numberProduct description
TN-SFP-OC3S12TRANSITION NETWORKSFLD-S155-SMD-120Transition Networks 100BASE-FX/OC-3 SFP transceiver, 1550 nm, 120 km over single-mode fiber, LC connector, with DMI.

A part-number cross-reference is a model-selection starting point, not a blanket device guarantee. Final fit depends on the exact device, firmware or OS, target port and requested coding profile.

See Where This Product Fits in the Network

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Application planning

Optical Transceiver Application and Link Map

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Optical transceiver application diagram covering data center, DCI, campus, server and metro networks

Review the Quality-Control and Test Flow

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Testing and quality

Quality Control and Test Flow

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Quality control flow covering material, firmware, optical, temperature, compatibility and final QA checks

Frequently Asked Questions

Answers to common compatibility, installation and troubleshooting questions.

Can different transceiver brands be used at opposite ends of a fiber link?

Yes. The transceivers do not normally need to be from the same manufacturer. Their Ethernet standard, wavelength, fiber type, lane configuration, reach, and other link requirements must be compatible.

What does an “unsupported transceiver” message mean?

It usually means the host device does not recognize or approve the identification information stored in the module. It does not necessarily indicate an optical failure.

Why does my compatible transceiver show low RX optical power?

Low receive power can result from excessive fiber loss, dirty connectors, damaged fiber, excessive link distance, incorrect wavelength pairing, or insufficient transmit power from the remote transceiver. Compare the measured RX power with the module's specified receiver range.

Why does a compatible transceiver work in one switch but not another?

Different switch models, hardware revisions, operating systems, and firmware versions may use different transceiver validation rules. A module compatible with one platform may require different coding for another.

How can I verify compatibility before ordering?

Check the network-device manufacturer and model, port type, required data rate, OEM transceiver reference if available, wavelength, reach, connector, fiber type, and software or firmware version when relevant.

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Engineering resources

Technical proof for faster project review

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