Can this 1550nm SFP really support an 80km fiber link?

Yes. The LS-SM551G-80C is specified for up to 80km over single-mode fiber at 1550nm, with a 1.25Gbps maximum data rate. Actual link distance depends on the fiber plant, connectors, splices, and overall optical loss budget.

What type of fiber and connector should I use with this module?

It uses single-mode fiber (SMF) and a Duplex LC interface. The transmitter is a 1550nm DFB laser and the receiver uses a PIN photodetector.

Can I use this in an industrial or outdoor cabinet?

If your application requires the industrial temperature range, specify the industrial version （such as LS-SM551G-80I) when ordering rather than assuming the standard LS-SM551G-80C has the extended range.

Does it support DOM, and which switch brands can I order it coded for?

Yes, the LS-SM551G-80C supports DOM and SFF-8472 digital diagnostics. The product page lists compatibility with Cisco, Arista, Aruba, Juniper, HPE, Dell, Fortinet, NVIDIA/Mellanox and other platforms. For a specific switch model, confirm the required OEM coding before placing a bulk order.

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DELL 430-4586 Compatible LINK-PP 1G SFP 1550nm 80km DOM Duplex LC SMF Optical Transceiver Module

Name: DELL 430-4586 Compatible LINK-PP 1G SFP 1550nm 80km DOM Duplex LC SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 223268
Price: 15.738 USD
Availability: InStock
Rating: 5 (26 reviews)

# 223268

Product: DELL 430-4586 Compatible LINK-PP 1G SFP 1550nm 80km DOM Duplex LC SMF Optical Transceiver Module
SKU: 223268
P/N: LS-SM551G-80C
Price: $ 18.3
Stock: 2958 in Stock
Sold: 2.5K
Product URL: https://www.l-p.com/products/478023.htm

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Manufacture: LINK-PP

P/N: LS-SM551G-80C

Compatible:: Cisco; LINK-PP; Adtran; Alcatel-Lucent; Allied Telesis; Arista; Aruba; Avago; Avaya; Brocade; Calix; Ciena; D-Link; DELL; Extreme; FS; Fortinet; Generic; H3C; HPE H3C; HPE ProCurve; HW; IBM; Intel; Juniper; NVIDIA/Mellanox; Netgear; ProCurve; SMC; SMC Networks; TRENDnet

Compatible P/N:: SFP1G-SX-31 | 2km; SFP1G-SX-31-I | 2km; 320-2879 | 10km; SFP1G-ELX-31 | 20km; SFP-EX1550-40 | 40km; SFP-LX-40 | 40km; SFP1G-EX-31-I | 40km; 430-4586 | 80km; SFP1G-ZX-55-I | 80km; SFP-EZX-100 | 100km; SFP1G-ZX120-55 | 120km; SFP1G-ZX160-55 | 160km

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DELL 430-4586 Compatible LINK-PP 1G SFP Specifications

The DELL 430-4586 Compatible LINK-PP SFP transceiver delivers consistent 1.25Gbps connectivity over single-mode fiber distances of up to 80km at a wavelength of 1550nm, guaranteeing full LINK-PP compatibility.

DELL Part Number	430-4586	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1550nm	Max Cable Distance	80km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	0 to +5dBm	RX Power	-26 to -1dBm
Receiver Sensitivity	<-26dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	SFF-8472 MSA Compliant, IEEE 802.3ah-2004

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Q: Can this 1550nm SFP really support an 80km fiber link? By N***s on 2026-05-04

A: Yes. The LS-SM551G-80C is specified for up to 80km over single-mode fiber at 1550nm, with a 1.25Gbps maximum data rate. Actual link distance depends on the fiber plant, connectors, splices, and overall optical loss budget. By admin on 2026-05-05
Q: What type of fiber and connector should I use with this module? By H***r on 2025-02-21

A: It uses single-mode fiber (SMF) and a Duplex LC interface. The transmitter is a 1550nm DFB laser and the receiver uses a PIN photodetector. By admin on 2025-02-21
Q: Can I use this in an industrial or outdoor cabinet? By C***k on 2024-08-21

A: If your application requires the industrial temperature range, specify the industrial version （such as LS-SM551G-80I) when ordering rather than assuming the standard LS-SM551G-80C has the extended range. By admin on 2024-08-21
Q: Does it support DOM, and which switch brands can I order it coded for? By N***s on 2024-04-15

A: Yes, the LS-SM551G-80C supports DOM and SFF-8472 digital diagnostics. The product page lists compatibility with Cisco, Arista, Aruba, Juniper, HPE, Dell, Fortinet, NVIDIA/Mellanox and other platforms. For a specific switch model, confirm the required OEM coding before placing a bulk order. By admin on 2024-04-15

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G***s

Brunei Darussalam

Verified Purchase

5 .0

2026-07-07

This is a useful replacement for older 1550nm long-reach Gigabit optics. We tested it with our existing SMF cabling and Duplex LC connections, then monitored the optical readings during the acceptance test. The module behaved consistently throughout the test window.

9 Helpful vote Comments

S***r

Republic of Korea

Verified Purchase

5 .0

2026-05-05

Great long-reach SFP.

21 Helpful vote Comments

M***n

Singapore

Verified Purchase

5 .0

2025-10-01

Good option for extending 1G connectivity over long single-mode fiber. We tested the module before deployment and verified the link at the expected data rate. The DFB laser, PIN receiver, and DOM support are a nice combination for network maintenance.

88 Helpful vote Comments

A***s

Mexico

Verified Purchase

5 .0

2025-09-30

The module performed well in our indoor telecom equipment room. We needed 1G connectivity over a long single-mode fiber run and specifically wanted 1550nm with an 80km reach. The Duplex LC interface matched our existing patch panel, so the physical installation was simple.

36 Helpful vote Comments

D***e

Ukraine

Verified Purchase

5 .0

2025-08-13

We were replacing older long-distance 1G optics and wanted something with a standard SFP footprint. These modules matched the requirement well: 1.25Gbps, 1550nm, Duplex LC, SMF, and up to 80km. Testing was straightforward. ;)

4 Helpful vote Comments

R***l

Hungary

Verified Purchase

5 .0

2025-03-13

1550nm and 80km — exactly what we needed.

11 Helpful vote Comments

S***s

Poland

Verified Purchase

5 .0

2025-02-05

The 1550nm 80km specification was the main reason we selected this module. Our route is well beyond what a typical 10km or 20km 1G optic can cover, so the extra reach is useful. It also fits the standard SFP slot without changing the switch platform.

87 Helpful vote Comments

A***t

Romania

Verified Purchase

5 .0

2025-01-28

Good value for the distance.

95 Helpful vote Comments

C***z

Indonesia

Verified Purchase

5 .0

2024-10-02

We needed a long-reach 1G SFP for an outdoor network cabinet, with the equipment itself installed in a controlled enclosure. The standard 0 to 70°C operating range fit our application, and the 1550nm Duplex LC interface matched the existing fiber infrastructure.

35 Helpful vote Comments

A***n

Indonesia

Verified Purchase

5 .0

2024-08-06

We needed an 80km SFP for a remote network segment and wanted to keep the deployment within a standard SFP architecture. The 1550nm DFB laser and PIN receiver are appropriate for this type of long-reach optical connection, and the 0 to 70°C standard temperature range works for our indoor cabinet.

31 Helpful vote Comments

C***y

France

Verified Purchase

5 .0

2024-07-28

These people are amazing! Ordered my items on Sunday and got a confirmation delivery date of Wednesday and got my items one day earlier than my expectation.Thanks,LINK-PP! You have my love and respect forever!!!

21 Helpful vote Comments

A***n

Turkey

Verified Purchase

5 .0

2024-07-22

The distance is the standout feature here. An 80km 1550nm SFP is exactly what we were looking for for a long fiber route where shorter-reach 1G modules were not enough. Installation was straightforward, and the Duplex LC connector matched our existing fiber panels.

10 Helpful vote Comments

S***a

Norway

Verified Purchase

5 .0

2024-06-29

Delivery three weeks, track number traceable, seller recommend.

110 Helpful vote Comments

J***r

Japan

Verified Purchase

5 .0

2024-05-20

Very practical for network teams maintaining mixed-generation infrastructure. We used the 1.25Gbps module on a long SMF route and appreciated that it supports real-time digital diagnostic monitoring. It gave our technicians a much easier way to check the optical link during troubleshooting.

70 Helpful vote Comments

C***h

Turkey

Verified Purchase

5 .0

2024-04-01

Received on-time and completely working product as expected.

98 Helpful vote Comments

J***r

United States

Verified Purchase

5 .0

2024-02-23

Easy ordering, quickly installed. No problems or concerns. Nicely priced compared to other retailers.

58 Helpful vote Comments

D***n

Norway

Verified Purchase

5 .0

2023-12-25

really great services

16 Helpful vote Comments

H***H

Russian Federation

Verified Purchase

5 .0

2023-11-23

I received my order very Fast and in excellent condition. 10/25/40G Transceiver Moduless were exactly as stated and well packaged. I'll test them tomorrow and reedit the review.

13 Helpful vote Comments

A***a

France

Verified Purchase

5 .0

2023-11-18

Very easy to order from and great prices.

29 Helpful vote Comments

J***n

Poland

Verified Purchase

5 .0