How does the latching mechanism handle dense line-card layouts where physical space between ports is minimal?

The module features a robust, low-profile bail latch that pull-releases smoothly, preventing physical interference or damage to adjacent simplex LC connectors during hot-swapping.

Can this 155M SFP BiDi optical module maintain a stable connection if the intermediate single-mode fiber infrastructure runs through multiple heavy fusion splices?

Yes, as long as the cumulative insertion loss across all splices does not exceed the maximum optical link budget allocated for this 20km transceiver.

Can I deploy this module in an indoor climate-controlled server room without worrying about humidity limitations?

Yes, the module is sealed to function flawlessly in standard commercial environments with operating relative humidity levels ranging from 5% up to 85% non-condensing.

Can I plug this SFP transceiver into a SONET multiplexer line card instead of an Ethernet switch?

Absolutely, this module fully supports the 155Mbps physical layer requirements for SONET OC-3 optical infrastructures.

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Generic SFP-FE-BX Compatible LINK-PP 155M SFP BiDi 1550nm-TX/1310nm-RX 20km Simplex LC DOM SMF Optical Transceiver Module

Name: Generic SFP-FE-BX Compatible LINK-PP 155M SFP BiDi 1550nm-TX/1310nm-RX 20km Simplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 214609
Price: 5.676 USD
Availability: InStock
Rating: 4.9 (30 reviews)

# 214609

Product: Generic SFP-FE-BX Compatible LINK-PP 155M SFP BiDi 1550nm-TX/1310nm-RX 20km Simplex LC DOM SMF Optical Transceiver Module
SKU: 214609
P/N: LS-BL553101-20C
Price: $ 6.6
Stock: 1943 in Stock
Sold: 2.3K
Product URL: https://www.l-p.com/products/478160.htm

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Manufacture: LINK-PP

P/N: LS-BL553101-20C

Compatible:: Cisco; LINK-PP; Alcatel-Lucent; Brocade; D-Link; Extreme; Generic; Netgear

Compatible P/N:: SFP-FE-BX | 10km; SFP-FE-BX | 20km

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Generic SFP-FE-BX Compatible LINK-PP 155M SFP Specifications

SFP-FE-BX redefines efficient data bridging as a commercial-grade 155M SFP BiDi single-mode optical transceiver, mastering 20km spans via a 1550nm-TX/1310nm-RX wavelength split while feeding live metrics through integrated Digital Diagnostic Monitoring from 0°C to 70°C.

Generic Part Number	SFP-FE-BX	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	155Mbps
Wavelength	1550nm-TX/1310nm-RX	Max Cable Distance	20km
Connector	Simplex LC	Media	SMF
Transmitter Type	FP	Receiver Type	PIN
TX Power	-14 to -8dBm	RX Power	-32 to -6dBm
Receiver Sensitivity	< -32dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: How does the latching mechanism handle dense line-card layouts where physical space between ports is minimal? By B***r on 2026-02-05

A: The module features a robust, low-profile bail latch that pull-releases smoothly, preventing physical interference or damage to adjacent simplex LC connectors during hot-swapping. By admin on 2026-02-06
Q: Can this 155M SFP BiDi optical module maintain a stable connection if the intermediate single-mode fiber infrastructure runs through multiple heavy fusion splices? By C***e on 2025-11-28

A: Yes, as long as the cumulative insertion loss across all splices does not exceed the maximum optical link budget allocated for this 20km transceiver. By admin on 2025-11-29
Q: Can I deploy this module in an indoor climate-controlled server room without worrying about humidity limitations? By A***t on 2025-09-12

A: Yes, the module is sealed to function flawlessly in standard commercial environments with operating relative humidity levels ranging from 5% up to 85% non-condensing. By admin on 2025-09-13
Q: Can I plug this SFP transceiver into a SONET multiplexer line card instead of an Ethernet switch? By D***t on 2025-08-04

A: Absolutely, this module fully supports the 155Mbps physical layer requirements for SONET OC-3 optical infrastructures. By admin on 2025-08-05

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N***t

Singapore

Verified Purchase

5 .0

2026-04-28

Crucial feature for our network operations center (NOC). We can track the TX/RX optical power directly from our SNMP dashboard. No bugs, no glitches.

37 Helpful vote Comments

B***n

Ukraine

Verified Purchase

5 .0

2026-04-12

Installed 50 of these in our corporate HQ server room. Since it’s a commercial-grade 0-70°C transceiver, it runs cool in our climate-controlled environment. No overheating issues at all.

56 Helpful vote Comments

L***n

Turkey

Verified Purchase

5 .0

2026-03-25

The perfect solution for legacy Metro-Ethernet / SDH backhaul. We manage several legacy municipal utility networks that still rely on 155Mbps Fast Ethernet / STM-1 architectures. Finding high-quality 20km Simplex LC optics with 1550nm transmission wavelengths is becoming difficult. LINK-PP saved our project timeline. The build quality of these modules is exceptional—the pull-tab latch is sturdy, and the internal EEPROM coding is flawlessly executed. We deployed 40 units across various indoor substations. The DDM parameters integrated perfectly into our Zabbix monitoring system via SNMP, allowing us to proactively track laser degradation. Highly recommended for critical infrastructure maintenance.

168 Helpful vote Comments

T***y

Philippines

Verified Purchase

5 .0

2026-03-02

Hard to find good quality 1550nm TX / 1310nm RX modules at this price point with full DOM support. LINK-PP is now our go-to vendor for optics.

43 Helpful vote Comments

Q***n

United States

Verified Purchase

5 .0

2026-01-27

BiDi technology is magic. Converted our dual-fiber setup into two independent single-fiber links using these Simplex LC SMF optics. Saved us thousands in infrastructure costs.

17 Helpful vote Comments

E***r

Singapore

Verified Purchase

4 .0

2026-01-08

Excellent 155M BiDi SFP optics for our campus network upgrade. The simplex LC connection saved our fiber budget. Docking one star because FedEx delayed the delivery by 24 hours, missing our scheduled maintenance window. The Product itself is flawless though.

25 Helpful vote Comments

K***n

Ukraine

Verified Purchase

5 .0

2025-12-19

Using these alongside the matching 1310nm-TX peer modules. The 20km budget provides plenty of headroom for our intra-city ring network. Will buy again for next quarter's upgrades.

51 Helpful vote Comments

P***e

Russian Federation

Verified Purchase

5 .0

2025-11-13

Did a deep dive on these modules using our optical time-domain reflectometer (OTDR). Deployed them on a 19.2km single-mode fiber link connecting two corporate offices. The LS-BL553101-20C SFP specification sheet claims a 20km budget, and it definitely delivers. The receiver sensitivity is impressive, picking up clean signals even near the budget threshold. What impressed me most was the DOM stability; the internal sensors’ voltage, temperature, and bias current readings don't fluctuate wildly like cheaper generic optics. This stability prevents false positives in our network monitoring alerts. Excellent engineering.

142 Helpful vote Comments

J***d

South Africa

Verified Purchase

5 .0

2025-10-28

Needed to maintain some older 155Mbps optical access nodes. Finding reliable 1550nm-TX BiDi SFPs can be tough nowadays, but LINK-PP delivered exactly what we needed.

29 Helpful vote Comments

D***k

Thailand

Verified Purchase

5 .0

2025-09-22

Had to extend a 155Mbps Ethernet link across our industrial park via single-mode fiber (SMF). These simplex LC modules did the trick over a 17km span. Rock solid stability so far.

49 Helpful vote Comments

S***t

Poland

Verified Purchase

5 .0

2025-09-05

Single-mode fiber connection clicked in perfectly with the simplex LC connector. Snug fit, no dust cap issues. Standard 155M speed is rock solid.

38 Helpful vote Comments

M***e

Thailand

Verified Purchase

4 .0

2025-08-05

Forgot to include the printed datasheet. Modules work great at 1550nm-TX/1310nm-RX as advertised, and the switches recognized them instantly. However, our shipment didn’t include the printed technical specification sheets we requested for our engineering logs. Customer service emailed the PDFs immediately, but it would have been better in the box.

40 Helpful vote Comments

H***n

New Zealand

Verified Purchase

5 .0

2025-07-14

In the power generation sector, many of our remote terminal units (RTUs) communicate via 155M optical interfaces over long distances. We bought these to replace aging, end-of-life transceivers. The build quality meets all standard telecommunication protocols, and the single-mode simplex setup integrates perfectly with our existing patch panels. Having reliable DOM data allows our field technicians to diagnose fiber dirt issues before a complete link outage occurs. Dealing with LINK-PP for our corporate procurement has been smooth, efficient, and highly professional.

112 Helpful vote Comments

R***m

Romania

Verified Purchase

5 .0

2025-04-09

The 1550nm-TX / 1310nm-RX pairing was correct for our BiDi pair, so setup was painless.

23 Helpful vote Comments

C***n

Turkey

Verified Purchase

5 .0

2025-03-15

We deployed these transceivers across a city-wide IP security camera network, linking remote traffic monitoring nodes back to the central command center. The 155Mbps bandwidth is more than enough for multiple compressed H.264/H.265 video streams. Because these utilize 1550nm-TX and 1310nm-RX on a simplex LC connector, we optimized our fiber distribution patches significantly. They are housed inside climate-controlled roadside cabinets, and despite the ambient outdoor shifts, the internal commercial-grade components keep the module operating safely within its thermal limits.

126 Helpful vote Comments

G***r

France

Verified Purchase

5 .0

2025-02-17

Procured 50 units for our telecom project in France. Data sheets were accurate, packaging was professional, and every single module passed our test before field deployment.

36 Helpful vote Comments

B***o

Spain

Verified Purchase

5 .0

2024-09-17

I just placed an order with 50 pcs 10G Sfp Cage. You guys shipped them to me in the same day. Actually it's really urgent for me and I appreciate your Fast shipment. Will order it continually for my projects.

70 Helpful vote Comments

H***a

Finland

Verified Purchase

5 .0

2024-07-18

Thank you. Super packing. Everything is very good. Goods superb delivery Fast. Thank you

43 Helpful vote Comments

B***v

United States

Verified Purchase

5 .0