Are these 1G BiDi SFPs natively compatible with Cisco Catalyst and Ubiquiti Edgeswitches without throwing unapproved module errors?

Yes! Our LS-SC31551G-03C module undergoes rigorous multi-brand switch compatibility testing. It works seamlessly as a plug-and-play solution with Cisco, Ubiquiti, Juniper, and other major OEM equipment without triggering unsupported transceiver warnings.

Do these optical transceivers comply with SFF-8472 for DDM/DOM monitoring, and are they RoHS certified for the EU market?

Yes, they are strictly RoHS compliant to meet global environmental standards. Furthermore, they fully support the SFF-8472 protocol, allowing your network engineers to accurately monitor real-time diagnostics like operating temperature, voltage, and Tx/Rx power parameters.

Does this transceiver require Single Mode Fiber (SMF) or Multi-Mode Fiber (MMF), and is the interface LC or SC?

This specific optical module (LS-SC31551G-03C) is designed exclusively for Single Mode Fiber (SMF) and is equipped with a Simplex SC connector. Please ensure your patch cables match this Simplex SC interface to achieve optimal 3km transmission distances.

We're an ISP looking to deploy hundreds of these for FTTH networks. Do you offer any bulk discount tiers for large B2B orders?

Absolutely. While our single unit price is highly competitive, we offer tiered wholesale discounts. For instance, orders over 1000 pieces drop the unit price significantly. You can also apply available volume codes directly at checkout for major procurement savings!

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LINK-PP LS-SC31551G-03C 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex SC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-SC31551G-03C 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex SC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 202188
Price: 8.17 USD
Availability: InStock
Rating: 4.9 (25 reviews)

# 202188

Product: LINK-PP LS-SC31551G-03C 1G SFP BiDi 1310nm-TX/1550nm-RX 3km Simplex SC DOM SMF Optical Transceiver Module
SKU: 202188
P/N: LS-SC31551G-03C
Price: $ 9.5
Stock: 220 in Stock
Sold: 1.8K
Product URL: https://www.l-p.com/products/491667.htm

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

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

For Order Over $5000 Get $100.00 Off , Code: Linkpp100

New Users: $10 Coupon for Orders , Code: linkpp2610

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Manufacture: LINK-PP

P/N: LS-SC31551G-03C

Compatible:: LINK-PP

Compatible P/N:: LS-SC31551G-03C | 3km; LS-SC31551G-03I | 3km; LS-SC55311G-03C | 3km; LS-SC55311G-03I | 3km; LS-SC31491G-10C | 10km; LS-SC31551G-10C | 10km; LS-SC31551G-10I | 10km; LS-SC49311G-10C | 10km; LS-SC55311G-10C | 10km; LS-SC55311G-10I | 10km; LS-SC31491G-20C | 20km; LS-SC31551G-20C | 20km; LS-SC31551G-20I | 20km; LS-SC49311G-20C | 20km; LS-SC55311G-20C | 20km; LS-SC55311G-20I | 20km; LS-SC31551G-40C | 40km; LS-SC31551G-40I | 40km; LS-SC55311G-40C | 40km; LS-SC55311G-40I | 40km

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LINK-PP LS-SC31551G-03C 1G BiDi SFP Specifications

The LINK-PP LS-SC31551G-03C is a high-performance 1G BiDi SFP transceiver designed for seamless Gigabit Ethernet connections. This commercial-grade BiDi optical module operates efficiently over single mode fiber, ensuring stable data transmission. Utilizing an advanced FP laser and PIN photodetector, this 1G fiber optic transceiver delivers reliable bandwidth for modern networking environments.

LINK-PP Part Number	LS-SC31551G-03C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1310nm-TX/1550nm-RX	Max Cable Distance	3km
Connector	Simplex SC	Media	SMF
Transmitter Type	FP	Receiver Type	PIN
TX Power	-9 to 0dBm	RX Power	-23 to -1dBm
Receiver Sensitivity	-20dBm	Receiver Overload	-3dBm
DOM Support	Yes	Operating Temperature Range	0 to 70°C

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Q: Are these 1G BiDi SFPs natively compatible with Cisco Catalyst and Ubiquiti Edgeswitches without throwing unapproved module errors? By A***z on 2026-07-18

A: Yes! Our LS-SC31551G-03C module undergoes rigorous multi-brand switch compatibility testing. It works seamlessly as a plug-and-play solution with Cisco, Ubiquiti, Juniper, and other major OEM equipment without triggering unsupported transceiver warnings. By admin on 2026-07-18
Q: Do these optical transceivers comply with SFF-8472 for DDM/DOM monitoring, and are they RoHS certified for the EU market? By J***n on 2026-04-01

A: Yes, they are strictly RoHS compliant to meet global environmental standards. Furthermore, they fully support the SFF-8472 protocol, allowing your network engineers to accurately monitor real-time diagnostics like operating temperature, voltage, and Tx/Rx power parameters. By admin on 2026-04-01
Q: Does this transceiver require Single Mode Fiber (SMF) or Multi-Mode Fiber (MMF), and is the interface LC or SC? By D***s on 2026-01-03

A: This specific optical module (LS-SC31551G-03C) is designed exclusively for Single Mode Fiber (SMF) and is equipped with a Simplex SC connector. Please ensure your patch cables match this Simplex SC interface to achieve optimal 3km transmission distances. By admin on 2026-01-04
Q: We're an ISP looking to deploy hundreds of these for FTTH networks. Do you offer any bulk discount tiers for large B2B orders? By A***z on 2025-10-23

A: Absolutely. While our single unit price is highly competitive, we offer tiered wholesale discounts. For instance, orders over 1000 pieces drop the unit price significantly. You can also apply available volume codes directly at checkout for major procurement savings! By admin on 2025-10-23

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J***t

France

Verified Purchase

5 .0

2026-07-05

Bought 50 units for a client's 1G network upgrade. 100% OEM switch compatibility.

54 Helpful vote Comments

J***t

Brazil

Verified Purchase

5 .0

2026-06-29

Highly reliable RoHS compliant solution. Link stays up continuously without any RX power drops.

148 Helpful vote Comments

M***e

Sweden

Verified Purchase

5 .0

2026-06-06

I use these for a long-distance 1G FTTH deployment. The single mode fiber transmission distance hits exactly 3km with zero errors. Wide multi-brand OEM compatibility makes my life as an ISP network engineer way easier.

162 Helpful vote Comments

P***z

United States

Verified Purchase

4 .0

2026-05-01

Delivery took an extra day to California, but the 1G BiDi SFP works flawlessly.

26 Helpful vote Comments

E***s

Dominican Republic

Verified Purchase

5 .0

2026-04-24

Flawless 1G SMF transceiver for our campus switch.

77 Helpful vote Comments

D***a

Viet Nam

Verified Purchase

5 .0

2026-03-15

Stable 3km SMF transceiver link. Great value.

111 Helpful vote Comments

P***n

Bolivia

Verified Purchase

5 .0

2026-03-13

Plug and play DOM optical module. Highly recommended. ⚡

40 Helpful vote Comments

R***a

Sweden

Verified Purchase

5 .0

2026-03-13

Good 1310nm-TX/1550nm-RX optics. Zero packet loss.

112 Helpful vote Comments

K***n

Chile

Verified Purchase

5 .0

2026-02-10

Excellent 1.25G BiDi module for connecting our remote NAS over single mode fiber.

80 Helpful vote Comments

M***z

Ecuador

Verified Purchase

5 .0

2026-01-23

Tested this 1G SFP BiDi 1310nm-TX/1550nm-RX 3km transceiver against strict enterprise standards. The FP/PIN combination delivers consistent -6dBm TX and excellent -20dBm RX sensitivity. Absolute game-changer for our high-density colocation facility in Frankfurt!

69 Helpful vote Comments

R***h

Argentina

Verified Purchase

5 .0

2025-12-07

DOM features on this 1G bidirectional module make real-time monitoring a breeze. (^_^)

72 Helpful vote Comments

C***z

Dominican Republic

Verified Purchase

5 .0

2025-11-27

The 1310nm/1550nm wavelength combo saves us fiber strands. Tested successfully on Aruba switches. ✅

134 Helpful vote Comments

J***s

Norway

Verified Purchase

5 .0

2025-11-25

Needed a quick B2B networking supplier in NY for BBU backhaul links. These 1.25Gbps optical modules run well within the 0 to 70°C spec in our climate-controlled edge cabinets. Extremely stable throughput for cellular traffic!

52 Helpful vote Comments

M***r

Italy

Verified Purchase

4 .0

2025-11-09

SC connector dust caps were loose in the box. Transceiver DOM reads perfectly fine though.

18 Helpful vote Comments

C***s

Hong Kong

Verified Purchase

5 .0

2025-09-18

Works instantly with Ubiquiti. Simplex SC is great!

54 Helpful vote Comments

S***n

Ecuador

Verified Purchase

5 .0

2025-09-07

Fast shipping for this 1G fiber optic transceiver.

193 Helpful vote Comments

A***e

Chile

Verified Purchase

5 .0

2025-08-14

3km distance verified. Solid Cisco compatible 1G SFP.

173 Helpful vote Comments

M***r

Dominican Republic

Verified Purchase

5 .0

2025-07-13

Cheap 1G SFP module, perfect for home lab.

59 Helpful vote Comments

E***n

Mexico

Verified Purchase

5 .0

2025-06-16

Perfect 1.25Gbps link speed on Mikrotik routers.

203 Helpful vote Comments

M***n

Taiwan, Province of China

Verified Purchase

5 .0

2025-06-15

Deployed these 1G BiDi SFPs for building-to-building links in Texas. Outstanding ROI.

181 Helpful vote Comments

S***e

Argentina

Verified Purchase

5 .0

2025-05-28

We bulk-deployed these Simplex SC DOM SMF optical transceiver modules across our entire campus optical network. DDM monitoring via SFF-8472 protocol works perfectly with our Juniper core gear. Incredible total cost of ownership.

82 Helpful vote Comments

M***n

Italy

Verified Purchase

5 .0

2025-05-26

Rock solid BBU connectivity. Will buy again!

86 Helpful vote Comments

M***s

Kazakhstan

Verified Purchase

5 .0