Does this SFP module support standard Fast Ethernet protocols alongside legacy SDH/SONET traffic?

Yes, the transceiver is highly versatile, supporting both 155Mbps Fast Ethernet data streams and telecommunications-grade STM-1 / OC-3 multi-service protocols.

Do we need to deploy bend-insensitive single-mode fiber to guarantee the module hits its 80km range?

Standard single-mode fiber works perfectly under normal conditions. However, if your cable trays have tight radii, bend-insensitive fiber prevents macrobending losses from exceeding your link budget.

What is the exact bit error rate (BER) capability of this transceiver over its maximum 80km range?

The module maintains a premium signal integrity threshold, delivering a tested Bit Error Rate (BER) of ≤10⁻¹² under full synthetic traffic load at maximum distance.

Can these industrial-grade 155M SFP transceivers withstand the continuous structural vibrations of an industrial wind turbine or railway track installation?

Yes. The Simplex LC physical latching mechanism and hardened internal components are engineered to resist heavy mechanical vibrations without risking signal interruption.

Does this 155M SFP feature hardware-level Link Flap Suppression logic?

Link flap suppression is handled by the host switch's operating system, but our module provides rock-solid physical link stability to prevent intermittent flaps from occurring.

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LINK-PP LS-BL315501-80I 155M SFP BiDi 1310nm-TX/1550nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-BL315501-80I 155M SFP BiDi 1310nm-TX/1550nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 205653
Price: 9.03 USD
Availability: InStock
Rating: 4.9 (15 reviews)

# 205653

Product: LINK-PP LS-BL315501-80I 155M SFP BiDi 1310nm-TX/1550nm-RX 80km Simplex LC DDM SMF Optical Transceiver Module (Industrial)
SKU: 205653
P/N: LS-BL315501-80I
Price: $ 10.5
Stock: 490 in Stock
Sold: 1.5K
Product URL: https://www.l-p.com/products/494036.htm

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Compatible P/N:: LS-BL315501-10C | 10km; LS-BL315501-10I | 10km; LS-BL553101-10C | 10km; LS-BL553101-10I | 10km; LS-BL315501-15C | 15km; LS-BL553101-15C | 15km; LS-BL315501-20C | 20km; LS-BL315501-20I | 20km; LS-BL553101-20C | 20km; LS-BL553101-20I | 20km; LS-BL315501-40C | 40km; LS-BL315501-40I | 40km; LS-BL553101-40C | 40km; LS-BL553101-40I | 40km; LS-BL315501-80C | 80km; LS-BL315501-80I | 80km; LS-BL495501-80C | 80km; LS-BL495501-80I | 80km; LS-BL553101-80C | 80km; LS-BL553101-80I | 80km; LS-BL554901-80C | 80km; LS-BL554901-80I | 80km

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LINK-PP LS-BL315501-80I 155M SFP Specifications

LS-BL315501-80I is an industrial-grade, 155M SFP BiDi optical transceiver module engineered to sustain rock-solid 80km data links over a single fiber by operating at a 1310nm-TX/1550nm-RX wavelength split via a Simplex LC interface, all while providing real-time Digital Diagnostic Monitoring (DDM) across an extreme temperature span of -40 to +85°C.

LINK-PP Part Number	LS-BL315501-80I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	155Mbps
Wavelength	1310nm-TX/1550nm-RX	Max Cable Distance	80km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-5 to +2dBm	RX Power	-32 to -6dBm
Receiver Sensitivity	-32dBm	DOM Support	Yes
Operating Temperature Range	-40 to 85°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: Does this SFP module support standard Fast Ethernet protocols alongside legacy SDH/SONET traffic? By T***m on 2026-02-24

A: Yes, the transceiver is highly versatile, supporting both 155Mbps Fast Ethernet data streams and telecommunications-grade STM-1 / OC-3 multi-service protocols. By admin on 2026-02-25
Q: Do we need to deploy bend-insensitive single-mode fiber to guarantee the module hits its 80km range? By Y***y on 2026-01-21

A: Standard single-mode fiber works perfectly under normal conditions. However, if your cable trays have tight radii, bend-insensitive fiber prevents macrobending losses from exceeding your link budget. By admin on 2026-01-22
Q: What is the exact bit error rate (BER) capability of this transceiver over its maximum 80km range? By S***h on 2025-11-18

A: The module maintains a premium signal integrity threshold, delivering a tested Bit Error Rate (BER) of ≤10⁻¹² under full synthetic traffic load at maximum distance. By admin on 2025-11-19
Q: Can these industrial-grade 155M SFP transceivers withstand the continuous structural vibrations of an industrial wind turbine or railway track installation? By V***s on 2025-08-05

A: Yes. The Simplex LC physical latching mechanism and hardened internal components are engineered to resist heavy mechanical vibrations without risking signal interruption. By admin on 2025-08-06
Q: Does this 155M SFP feature hardware-level Link Flap Suppression logic? By R***n on 2025-03-25

A: Link flap suppression is handled by the host switch's operating system, but our module provides rock-solid physical link stability to prevent intermittent flaps from occurring. By admin on 2025-03-26

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K***g

Singapore

Verified Purchase

5 .0

2026-05-09

DDM reporting is spot on. Real-time Tx/Rx power tracking works perfectly on our switches. (•̀ᴗ•́)و

37 Helpful vote Comments

W***g

Poland

Verified Purchase

5 .0

2026-04-01

Most commercial optics fail when ambient cabinet temperatures drop past -20°C, leading to frequency drift and link flaps, which is why we chose this explicitly rated -40°C to 85°C module for our smart grid substations. Deployed inside unheated roadside enclosures during a severe winter storm cycle, our monitoring systems tracked the DDM internal module temperature at -32°C while maintaining stable Tx power at -3dBm. The laser stability at 1310nm transmission is remarkable, showing zero wavelength drifting under extreme thermal stress.

118 Helpful vote Comments

L***e

Hungary

Verified Purchase

5 .0

2026-03-19

Simplex LC is a game changer for tight budgets. Leasing dark fiber across counties is expensive. By using these single-fiber BiDi transceivers, we doubled our capacity on existing infrastructure without laying new lines. Absolute win for our enterprise group.

129 Helpful vote Comments

G***y

Israel

Verified Purchase

5 .0

2026-02-13

DDM diagnostics saved us hours of troubleshooting. The built-in Digital Diagnostic Monitoring is fully functional. We can poll the exact optical power and temperature metrics via SNMP. Makes remote monitoring of our remote campus network lines so much easier!

81 Helpful vote Comments

M***n

Austria

Verified Purchase

4 .0

2026-01-18

Solid hardware, took an extra day to clear customs. The industrial-grade temperature performance is great for our outdoor highway cameras. The DDM readouts match our Fluke testers exactly. Deducted one star because customs processing delayed delivery by 24 hours. Will order earlier next time.

24 Helpful vote Comments

K***s

Thailand

Verified Purchase

5 .0

2025-12-23

Industrial grade is the real deal. Deployed in our uncooled roadside cabinets last winter and they didn't drop a single frame.

55 Helpful vote Comments

J***n

Belgium

Verified Purchase

4 .0

2025-12-07

Great long-distance BiDi module, but dispatch date slipped by 24 hours. The wavelength separation provides a clean signal, and the modules operate flawlessly across our rural link. The order took two extra business days to leave due to a minor delay in custom firmware flashing. The deployment team had to push their site visit back slightly, but the optics perform beautifully.

20 Helpful vote Comments

B***g

Romania

Verified Purchase

5 .0

2025-11-29

Accurate wavelength separation. The 1310nm Tx and 1550nm Rx separation is perfectly isolated. No crosstalk or signal degradation noticed even on lines stretching close to the 80km maximum specification limit. Clear signal all the way!

106 Helpful vote Comments

C***y

Bulgaria

Verified Purchase

5 .0

2025-10-05

Stable performance across the entire 80km budget. Tested these SFP transceiver modules on our optical test bench before field deployment. The attenuation tolerance is excellent, and the 155Mbps rate stays clean with zero bit errors over long soak tests.

41 Helpful vote Comments

T***n

Indonesia

Verified Purchase

5 .0

2025-09-17

Perfect fit for legacy STM-1/OC-3 lines. A lot of vendors are phasing out 155M optics, so finding reliable long-reach 80km SMF modules is a lifesaver. Running these for a utility company pipeline telemetry network and the connection is rock solid.

83 Helpful vote Comments

P***g

Italy

Verified Purchase

5 .0

2025-08-18

While the industry is focusing on high-speed data center links, many of our critical transit signaling networks still rely on stable 155M Fast Ethernet and SDH/OC-3 protocols over long distances. Finding high-quality 80km transceivers with Simplex LC interfaces that bypass strict vendor checks on legacy MSA equipment was a massive bottleneck until we tried these LINK-PP 155M SFP modules. The EEPROM is coded correctly to avoid "unsupported transceiver" errors, and the single-mode fiber physical layer mechanics are flawless. We observed no receiver saturation issues on our 45km test spans, though we utilized a small attenuator to align with long-term safety margins.

109 Helpful vote Comments

E***d

Ireland

Verified Purchase

5 .0

2025-07-31

Rugged optics for harsh environments. We run these BiDi SFP modules inside outdoor cabinets for a railway signaling network. Temperatures hit 50°C in summer and below zero in winter, but these industrial-grade (-40°C to 85°C) modules haven't flinched. Highly recommended!

135 Helpful vote Comments

R***g

Spain

Verified Purchase

5 .0

2025-06-23

When you pack dozens of SFP modules into a single high-density switch chassis, heat dissipation becomes a major bottleneck even for low-speed 155M monitoring links. The LS-BL315501-80I features an exceptional zinc alloy housing that dissipates heat efficiently, running significantly cooler than the generic transceivers we previously sampled on our bench. According to our chassis temperature sensors, the thermal footprint remains uniform, preventing localized hotspots that threaten power supply stability. The hot-pluggable mechanism is smooth and latches securely without requiring excessive force, protecting the delicate internal backplane pins during maintenance.

127 Helpful vote Comments

S***d

Iran, Islamic Republic of

Verified Purchase

5 .0

2025-05-30

80km reach verified. Signal attenuation stayed well within limits across our entire municipal utility link.

57 Helpful vote Comments

R***d

United States

Verified Purchase

5 .0