Will this 1G SFP module work flawlessly with our existing Cisco Catalyst and Juniper switches? We need to avoid vendor lock-in.

Yes! The LS-SM551G-A0C is highly compatible. It is SFF-8472 MSA compliant and has been fully tested to work seamlessly with Cisco, Juniper, Arista, and many other major brand switches without triggering unsupported transceiver warnings.

The 0 to 70°C operating temperature is fine for our server room, but we need some for outdoor cabinets in harsh winters. Do you have an industrial version?

Yes, we do! For outdoor or extreme environments, we highly recommend the LS-SM551G-A0I model, which is the industrial-grade counterpart supporting a wider temperature range of -40 to 85°C, ensuring stable long-haul transmission in harsh climates.

Does this 1.25Gbps optical module support standard IEEE protocols for telecom backhaul integration?

Definitely! It fully complies with the IEEE 802.3ah-2004 standards and supports DDM/DOM for real-time diagnostic monitoring. It’s an ideal, standards-based solution for telecom backbones, campus networks, and cell tower backhaul applications.

Is this transceiver compatible with multi-mode fiber (MMF), or do I strictly need single-mode fiber (SMF) for the 100km reach?

This specific 1550nm optical transceiver is exclusively designed for Single-Mode Fiber (SMF) using a Duplex LC connector. To achieve the 100km maximum cable distance, high-quality SMF is strictly required, as MMF cannot support this wavelength and extreme distance.

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Calix SFP1G-ZX100-55 Compatible LINK-PP 1G SFP 1550nm 100km Duplex LC DOM SMF Optical Transceiver Module

Name: Calix SFP1G-ZX100-55 Compatible LINK-PP 1G SFP 1550nm 100km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 213568
Price: 25.8 USD
Availability: InStock
Rating: 4.9 (29 reviews)

# 213568

Product: Calix SFP1G-ZX100-55 Compatible LINK-PP 1G SFP 1550nm 100km Duplex LC DOM SMF Optical Transceiver Module
SKU: 213568
P/N: LS-SM551G-A0C
Price: $ 30
Stock: 1317 in Stock
Sold: 4.4K
Product URL: https://www.l-p.com/products/493774.htm

For Order Over $1000 Get $15.00 Off , Code: Linkpp15

For Order Over $3000 Get $50.00 Off , Code: Linkpp50

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Manufacture: LINK-PP

P/N: LS-SM551G-A0C

Compatible:: Cisco; LINK-PP; Adtran; Alcatel-Lucent; Arista; Avaya; Brocade; Calix; Ciena; DELL; Extreme; FS; Generic; H3C; HPE H3C; IBM; Intel; Juniper; NVIDIA/Mellanox; Netgear; SMC; SMC Networks

Compatible P/N:: SFP1G-SX-31 | 2km; SFP1G-SX-31-I | 2km; 100-01662 | 10km; SFP1G-ELX-31 | 20km; 100-01663 | 40km; SFP1G-EX-55 | 40km; SFP1G-ZX-55 | 80km; SFP1G-ZX-55-I | 80km; SFP1G-ZX100-55 | 100km; SFP1G-ZX120-55 | 120km

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Calix SFP1G-ZX100-55 Compatible LINK-PP 1G SFP Specifications

The Calix SFP1G-ZX100-55 Compatible LINK-PP module is a high-performance 1G SFP optical transceiver designed for long-distance data communications. Operating at a 1550nm wavelength over single-mode fiber, this commercial-grade module supports a maximum transmission distance of 100km. It features a duplex LC connector, +3.3V power supply, and fully complies with MSA standards for optimal network integration.

Calix Part Number	SFP1G-ZX100-55	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1550nm	Max Cable Distance	100km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	0 to +5dBm	RX Power	-30 to -1dBm
Receiver Sensitivity	-28dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	SFF-8472 MSA Compliant, IEEE 802.3ah-2004

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Q: Will this 1G SFP module work flawlessly with our existing Cisco Catalyst and Juniper switches? We need to avoid vendor lock-in. By J***z on 2026-03-30

A: Yes! The LS-SM551G-A0C is highly compatible. It is SFF-8472 MSA compliant and has been fully tested to work seamlessly with Cisco, Juniper, Arista, and many other major brand switches without triggering unsupported transceiver warnings. By admin on 2026-03-30
Q: The 0 to 70°C operating temperature is fine for our server room, but we need some for outdoor cabinets in harsh winters. Do you have an industrial version? By S***n on 2025-11-13

A: Yes, we do! For outdoor or extreme environments, we highly recommend the LS-SM551G-A0I model, which is the industrial-grade counterpart supporting a wider temperature range of -40 to 85°C, ensuring stable long-haul transmission in harsh climates. By admin on 2025-11-13
Q: Does this 1.25Gbps optical module support standard IEEE protocols for telecom backhaul integration? By D***s on 2025-08-19

A: Definitely! It fully complies with the IEEE 802.3ah-2004 standards and supports DDM/DOM for real-time diagnostic monitoring. It’s an ideal, standards-based solution for telecom backbones, campus networks, and cell tower backhaul applications. By admin on 2025-08-19
Q: Is this transceiver compatible with multi-mode fiber (MMF), or do I strictly need single-mode fiber (SMF) for the 100km reach? By J***s on 2025-08-10

A: This specific 1550nm optical transceiver is exclusively designed for Single-Mode Fiber (SMF) using a Duplex LC connector. To achieve the 100km maximum cable distance, high-quality SMF is strictly required, as MMF cannot support this wavelength and extreme distance. By admin on 2025-08-10

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C***t

Germany

Verified Purchase

5 .0

2026-05-27

Excellent 1550nm SFP transceiver for my home NAS setup. Passed all duplex LC tests.

45 Helpful vote Comments

S***r

Spain

Verified Purchase

5 .0

2026-05-13

We needed reliable cell tower backhaul optics. The 0 to 70°C temp rating holds up well in climate-controlled enclosures. Outstanding 1G duplex LC transceiver for massive B2B procurement projects.

22 Helpful vote Comments

J***n

Dominican Republic

Verified Purchase

5 .0

2026-02-21

Works fine with my Juniper router immediately.

44 Helpful vote Comments

P***l

Mexico

Verified Purchase

5 .0

2026-02-10

MSA compliant, zero compatibility errors here.

129 Helpful vote Comments

L***s

Poland

Verified Purchase

5 .0

2025-10-14

Upgraded our enterprise network with these SFP modules. Cisco compatibility is totally seamless!

109 Helpful vote Comments

C***n

Germany

Verified Purchase

5 .0

2025-09-26

Bought a batch of 1.25Gbps modules for outdoor cabinets. Running cool and stable.

98 Helpful vote Comments

T***s

Hong Kong

Verified Purchase

5 .0

2025-09-20

Great Duplex LC optical transceiver, plug and play.

77 Helpful vote Comments

K***z

Ukraine

Verified Purchase

5 .0

2025-07-13

Flawless 1.25Gbps link on our Cisco switches!

157 Helpful vote Comments

D***z

Bolivia

Verified Purchase

5 .0

2025-06-24

Nice 1G SFP for B2B bulk deployment.

92 Helpful vote Comments

D***z

Portugal

Verified Purchase

4 .0

2025-05-13

FedEx delayed my shipment by a day. Still, this 100km SMF transceiver is absolutely rock-solid.

153 Helpful vote Comments

S***h

Sweden

Verified Purchase

5 .0

2025-04-14

Solid 100km reach for cell tower backhaul.

131 Helpful vote Comments

M***z

Mexico

Verified Purchase

4 .0

2025-04-12

Box was a bit dented on arrival, but the 1G SFP 1550nm module works perfectly.

69 Helpful vote Comments

S***r

Ecuador

Verified Purchase

5 .0

2025-01-05

Arista switch accepted it immediately. The 1G fiber distance is absolutely incredible!

87 Helpful vote Comments

D***z

Denmark

Verified Purchase

5 .0

2024-12-18

The DDM feature saves us so much troubleshooting time in the server room. Good value. ⏱️

65 Helpful vote Comments

S***r

Italy

Verified Purchase

5 .0

2024-12-08

Hard to beat the price for a 100km SMF optical transceiver. Smooth Dell integration.

37 Helpful vote Comments

H***e

Poland

Verified Purchase

5 .0

2024-07-30

These are the best Optical Transceiver Modules I’ve used. They are WAY better than the cheap ones that fail all the time.They feel high quality as well! You definitely get what you pay for in this instance. Well worth the money.

123 Helpful vote Comments

C***n

United States

Verified Purchase

5 .0

2024-06-22

Our boss is very picky about the quality, while I am looking for the way to save budget. Link-PP makes it possible for me not to make trade-offs between quality and cost. Every time get money's worth out of the products.

52 Helpful vote Comments

A***o

Indonesia

Verified Purchase

5 .0

2024-03-20

Their customer service has been great! Love that I can call and they are friendly and willing to answer all my questions. I also like that I can go online and find everything I need. Their website is user friendly! Highly recommend!!

37 Helpful vote Comments

J***l

United States

Verified Purchase

5 .0

2023-12-11

Super customer experience in terms of Fast delivery. Delivered as promised.

42 Helpful vote Comments

E***g

Canada

Verified Purchase

5 .0