How much power does this module draw under heavy 25G data loads?

It is designed to be highly energy-efficient, drawing less than 1.5W of power. This keeps the total heat dissipation inside your network racks very low.

Is there any risk of wavelength crosstalk over the single-strand fiber link?

No, the 1330nm-TX/1270nm-RX wavelength separation is strictly isolated inside the optical assembly to prevent internal feedback or signal interference.

I bought this LS-BL332725-10E 155M SFP module. Can I plug the exact same model into both ends of the link?

No, you cannot. You must pair this module with its matching counterpart (1270nm-TX/1330nm-RX) on the other end to establish a link.

Can I run a physical loopback test on a single LS-BL332725-10E module to check port health?

No, because BiDi modules transmit and receive on completely different wavelengths (1330nm-TX / 1270nm-RX). A loopback cable on a single module will not establish a link.

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LINK-PP LS-BL332725-10E 25G SFP28 BiDi 1330nm-TX/1270nm-RX 10km Simplex LC/UPC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-BL332725-10E 25G SFP28 BiDi 1330nm-TX/1270nm-RX 10km Simplex LC/UPC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 183655
Price: 35.26 USD
Availability: InStock
Rating: 4.9 (20 reviews)

# 183655

Product: LINK-PP LS-BL332725-10E 25G SFP28 BiDi 1330nm-TX/1270nm-RX 10km Simplex LC/UPC DOM SMF Optical Transceiver Module
SKU: 183655
P/N: LS-BL332725-10E
Price: $ 41
Stock: 590 in Stock
Sold: 610
Product URL: https://www.l-p.com/products/478625.htm

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Manufacture: LINK-PP

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Compatible:: LINK-PP

Compatible P/N:: LS-BL273325-10C | 10km; LS-BL273325-10E | 10km; LS-BL273325-10I | 10km; LS-BL332725-10C | 10km; LS-BL332725-10E | 10km; LS-BL332725-10I | 10km; LS-BL273325-20C | 20km; LS-BL273325-20E | 20km; LS-BL273325-20I | 20km; LS-BL332725-20C | 20km; LS-BL332725-20E | 20km; LS-BL332725-20I | 20km; LS-BL273125-40C | 40km; LS-BL273125-40I | 40km; LS-BL312725-40C | 40km; LS-BL312725-40I | 40km; LS-BL293025-60C | 60km; LS-BL302925-60C | 60km

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LINK-PP LS-BL332725-10E 25G SFP28 Specifications

LS-BL332725-10E is a 25G SFP28 BiDi optical transceiver module that delivers reliable 10km single-mode fiber (SMF) connectivity utilizing 1330nm-TX/1270nm-RX wavelengths, fully rated for dependable operation across an extended -20 to 85°C temperature range.

LINK-PP Part Number	LS-BL332725-10E	Vendor Name	LINK-PP
Form Factor	SFP28	Max Data Rate	25.78Gbps
Wavelength	1330nm-TX/1270nm-RX	Max Cable Distance	10km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-3 to +5dBm	RX Power	-14 to +3dBm
Receiver Sensitivity	＜-13dBm	Receiver Overload	2dBm
Operating Temperature Range	-20 to 85°C	Protocols	MSA Compliant, CPRI, eCPRI

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Q: How much power does this module draw under heavy 25G data loads? By G***s on 2026-02-23

A: It is designed to be highly energy-efficient, drawing less than 1.5W of power. This keeps the total heat dissipation inside your network racks very low. By admin on 2026-02-24
Q: Is there any risk of wavelength crosstalk over the single-strand fiber link? By J***s on 2025-10-29

A: No, the 1330nm-TX/1270nm-RX wavelength separation is strictly isolated inside the optical assembly to prevent internal feedback or signal interference. By admin on 2025-10-30
Q: I bought this LS-BL332725-10E 155M SFP module. Can I plug the exact same model into both ends of the link? By C***y on 2025-06-18

A: No, you cannot. You must pair this module with its matching counterpart (1270nm-TX/1330nm-RX) on the other end to establish a link. By admin on 2025-06-19
Q: Can I run a physical loopback test on a single LS-BL332725-10E module to check port health? By M***p on 2025-04-09

A: No, because BiDi modules transmit and receive on completely different wavelengths (1330nm-TX / 1270nm-RX). A loopback cable on a single module will not establish a link. By admin on 2025-04-10

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L***t

Brazil

Verified Purchase

5 .0

2026-05-02

Very happy with the built-in DDM diagnostic interface. It simplifies remote troubleshooting significantly because we can read laser temperature, supply voltage, and Tx/Rx optical power directly from our centralized monitoring dashboard. Saves truck rolls!

103 Helpful vote Comments

I***r

Australia

Verified Purchase

5 .0

2026-04-22

The pull tabs are tough and easy to grab in packed patch panels.

56 Helpful vote Comments

J***r

Belgium

Verified Purchase

5 .0

2026-03-31

We spec'd the LS-BL332725-10E for a regional government office network upgrade. The simplex LC/UPC connectors clicked securely into place. The transceiver optical budget is generous, maintaining clean Rx power margins even through two internal patch panels.

127 Helpful vote Comments

E***d

Brunei Darussalam

Verified Purchase

5 .0

2026-02-19

Running these in our outdoor node boxes at -10°C, absolutely zero issues so far!

51 Helpful vote Comments

L***k

Germany

Verified Purchase

5 .0

2026-02-03

We tested a batch of these 25G SFP28 BiDi modules for our multi-tenant data center interconnects. Operating over single-mode fiber with a simplex LC/UPC interface, the 1330nm-TX and 1270nm-RX separation worked perfectly. The integrated DOM telemetry provided highly stable optical power readouts matching our bench meters. The signal remained clean with zero frame loss across our 9km fiber test path. For scaling high-density enterprise infrastructure on a budget, this transceiver is an incredibly reliable option.

92 Helpful vote Comments

S***h

Austria

Verified Purchase

5 .0

2026-01-29

Deployed a dozen of these LS-BL332725-10E SFP28 optical modules for our campus multi-building distribution layer. The 1330nm-TX and 1270nm-RX single-strand fiber configuration allowed us to double our backbone capacity without pulling new glass through old conduits. Perfect for immediate bandwidth expansions!

95 Helpful vote Comments

E***t

Canada

Verified Purchase

5 .0

2025-12-17

Solid 25Gbps performance over our 7.5km single-mode fiber links. No signal degradation or random link drops observed during heavy high-performance computing backup sync operations. Fits snug into standard SFP28 ports without loose rattling.

63 Helpful vote Comments

C***n

Finland

Verified Purchase

4 .0

2025-12-16

The transceivers perform flawlessly at 25G speeds over our 8km link, but a massive snowstorm in the midwest delayed the carrier by three days. A bit frustrating when you are on a tight deployment schedule, but the hardware itself is excellent once it finally arrived.

20 Helpful vote Comments

O***t

Bulgaria

Verified Purchase

5 .0

2025-10-09

Great build quality. The pull-tab mechanism feels durable and doesn't snap off like cheap generic alternatives do. Important for field technicians who frequently re-patch or audit rack spaces. Will keep buying this model for our future 25G access ring builds.

71 Helpful vote Comments

A***n

Denmark

Verified Purchase

5 .0

2025-09-29

We deployed these SFP28 BiDi optical modules to upgrade our campus network distribution layer from legacy speeds. Pairing this 1330nm-TX module with the matching 1270nm-TX partner allowed us to double capacity on existing single-strand fiber. Compatibility with our various distribution and access switches was immediate, with no port configuration errors. The optical power budget is generous, easily overcoming inline patch panel attenuation. This has become our go-to module for cost-effective 25G infrastructure upgrades.

137 Helpful vote Comments

N***y

Bulgaria

Verified Purchase

5 .0

2025-09-14

Doubled our fiber bandwidth overnight without laying down new cable. Heavy win!

74 Helpful vote Comments

J***t

Spain

Verified Purchase

5 .0

2025-08-19

Our outdoor roadside traffic monitoring nodes suffer from intense environmental shifts. The extended temperature range of -20°C to +85°C on these SFP28 transceivers was our main requirement. After three months of continuous summer heat peaking over 70°C inside the cabinets, they haven't failed once. Real-time DDM monitors confirm the internal laser temperatures and supply voltages remain perfectly stable. These are absolute lifesavers for rugged, unconditioned industrial field environments.

83 Helpful vote Comments

A***s

Austria

Verified Purchase

5 .0

2025-08-01

Amazing price-to-performance ratio for 25G SFP28 BiDi deployments. Will buy bulk next time!

115 Helpful vote Comments

O***t

Brunei Darussalam

Verified Purchase

5 .0

2025-07-31

Our outdoor aggregation cabinets get brutally hot in July, reaching over 55°C internal ambient. These extended temperature 25G SFP28 transceivers handle the heat gracefully without throttling or causing laser bias current spikes. Absolute lifesaver for metro-edge transport systems.

85 Helpful vote Comments

C***k

Argentina

Verified Purchase

5 .0

2025-07-13

Excellent 25G optics for 5G front-haul base station backhaul architectures. The extended operating temperature range (-20°C to +85°C) gives us immense peace of mind in our unconditioned ground-level cabinets during harsh summers. Telco-grade reliability at a fraction of the cost.

149 Helpful vote Comments

V***y

Australia

Verified Purchase

5 .0

2025-06-10

If you are running short-to-medium range dark fiber networks up to 10km, this BiDi optic is the way to go. It completely mitigates the need for traditional dual-strand duplex patch cables. Cleaner cable management and less points of failure in dense patching environments.

98 Helpful vote Comments

N***r

Belgium

Verified Purchase

5 .0

2025-05-02

Passed our 48-hour continuous packet stress test without dropping a single frame.

94 Helpful vote Comments

E***l

Belarus

Verified Purchase

5 .0

2025-04-30

Using these BiDi SFP28 modules in our central office to aggregate incoming local distribution circuits. The 1330nm-TX/1270nm-RX wavelength separation provides excellent isolation, avoiding cross-talk or back-reflection issues. Very reliable choice for modern high-bandwidth transport layers.

108 Helpful vote Comments

L***n

France

Verified Purchase

4 .0

2025-03-22

Modules work perfectly on our core switches and DOM readouts are fully functional. Docking one star because local customs held up the shipment for inspection for 48 hours, causing us to miss our weekend maintenance window. Will still buy again due to the superb hardware value.

35 Helpful vote Comments

H***s

Argentina

Verified Purchase

5 .0

2025-03-05

DOM telemetry reads accurate levels across our 8km campus fiber ring. (^_^)

45 Helpful vote Comments