We run a mix of Cisco, HP, and Mikrotik routers. Will this 1G SFP BiDi module cause any unsupported hardware faults?

Not at all! This LINK-PP LS-SC49311G-20C is programmed for seamless OEM compatibility. We guarantee high interoperability across major brands like Cisco and Mikrotik, ensuring plug-and-play performance without vendor lockout warnings or port shutdowns.

This is a 1490nm-TX/1310nm-RX BiDi transceiver, it uses a Simplex SC connector on standard SMF, right? Not LC duplex?

Correct! This specific module features a Simplex SC interface and requires only a single strand of Single-Mode Fiber (SMF) to achieve the full 20km transmission distance. Note: You must pair it with a complementary 1310nm-TX/1490nm-RX module at the other end of the link.

I’m planning a major campus fiber networking upgrade. Do you offer B2B bulk deployment discounts for orders over 1000 units?

Yes, we provide aggressive tier-based pricing for B2B procurement and ISP bulk rollouts. Contact our enterprise sales team directly, and we will get you a custom quote that will significantly stretch your IT infrastructure budget.

Do these transceivers comply with standard MSA and IEEE protocols? Need to pass our data center strict compliance audit.

Absolutely. The LS-SC49311G-20C is 100% MSA (Multi-Source Agreement) compliant and strictly adheres to standard IEEE Gigabit Ethernet protocols. Each module passes rigorous factory testing to meet international safety and networking standards.

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LINK-PP LS-SC49311G-20C 1G SFP BiDi 1490nm-TX/1310nm-RX 20km Simplex SC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-SC49311G-20C 1G SFP BiDi 1490nm-TX/1310nm-RX 20km Simplex SC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 199259
Price: 7.31 USD
Availability: InStock
Rating: 5 (45 reviews)

# 199259

Product: LINK-PP LS-SC49311G-20C 1G SFP BiDi 1490nm-TX/1310nm-RX 20km Simplex SC DOM SMF Optical Transceiver Module
SKU: 199259
P/N: LS-SC49311G-20C
Price: $ 8.5
Stock: 180 in Stock
Sold: 920
Product URL: https://www.l-p.com/products/489586.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-SC49311G-20C

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-SC49311G-20C 1G BiDi SFP Specifications

The LINK-PP LS-SC49311G-20C is a high-performance Gigabit Ethernet transceiver designed for single-mode fiber networks. This commercial-grade BiDi SFP module delivers a reliable 1.25Gbps data rate over long distances. Built with an advanced DFB laser and PIN receiver, this optical transceiver guarantees exceptional signal integrity for demanding telecommunication and data center environments.

LINK-PP Part Number	LS-SC49311G-20C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1490nm-TX/1310nm-RX	Max Cable Distance	20km
Connector	Simplex SC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-9 to 0dBm	RX Power	-23 to -1dBm
Receiver Sensitivity	<-23dBm	Receiver Overload	-3dBm
DOM Support	Yes	Operating Temperature Range	0 to 70°C

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Q: We run a mix of Cisco, HP, and Mikrotik routers. Will this 1G SFP BiDi module cause any unsupported hardware faults? By D***s on 2026-02-28

A: Not at all! This LINK-PP LS-SC49311G-20C is programmed for seamless OEM compatibility. We guarantee high interoperability across major brands like Cisco and Mikrotik, ensuring plug-and-play performance without vendor lockout warnings or port shutdowns. By admin on 2026-02-28
Q: This is a 1490nm-TX/1310nm-RX BiDi transceiver, it uses a Simplex SC connector on standard SMF, right? Not LC duplex? By C***n on 2025-02-16

A: Correct! This specific module features a Simplex SC interface and requires only a single strand of Single-Mode Fiber (SMF) to achieve the full 20km transmission distance. Note: You must pair it with a complementary 1310nm-TX/1490nm-RX module at the other end of the link. By admin on 2025-02-16
Q: I’m planning a major campus fiber networking upgrade. Do you offer B2B bulk deployment discounts for orders over 1000 units? By L***l on 2025-02-04

A: Yes, we provide aggressive tier-based pricing for B2B procurement and ISP bulk rollouts. Contact our enterprise sales team directly, and we will get you a custom quote that will significantly stretch your IT infrastructure budget. By admin on 2025-02-05
Q: Do these transceivers comply with standard MSA and IEEE protocols? Need to pass our data center strict compliance audit. By S***r on 2025-01-29

A: Absolutely. The LS-SC49311G-20C is 100% MSA (Multi-Source Agreement) compliant and strictly adheres to standard IEEE Gigabit Ethernet protocols. Each module passes rigorous factory testing to meet international safety and networking standards. By admin on 2025-01-29

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S***s

Ukraine

Verified Purchase

5 .0

2026-06-28

Seamless multi-brand switch compatibility test. No unsupported hardware errors on our Juniper gear.

36 Helpful vote Comments

S***s

Ireland

Verified Purchase

5 .0

2026-06-22

As an engineer, deploying these 1G BiDi transceivers for a massive FTTH project was a massive win. The simplex SC connector halves our SMF cabling costs, and the 20km range handles everything flawlessly.

62 Helpful vote Comments

M***a

Greece

Verified Purchase

5 .0

2026-06-18

We subjected these to rigorous multi-brand switch compatibility tests in our London data center. Absolute perfection. The 1490nm-TX/1310nm-RX wavelengths are rock solid, and DOM readings are incredibly precise under heavy load.

56 Helpful vote Comments

S***e

Austria

Verified Purchase

5 .0

2026-06-17

DOM diagnostic info is spot on. Mixes perfectly with our existing Ubiquiti switches.

216 Helpful vote Comments

J***s

United Kingdom

Verified Purchase

4 .0

2026-05-10

Shipping delayed my 1G BiDi deployment by a day, but the module works fine.

12 Helpful vote Comments

D***z

Germany

Verified Purchase

5 .0

2026-04-19

Fast delivery, working perfectly for home NAS.

100 Helpful vote Comments

A***l

Singapore

Verified Purchase

5 .0

2026-02-22

Upgraded the machine room. This 1G 1490nm-TX module saves so much fiber space!

123 Helpful vote Comments

A***z

Ukraine

Verified Purchase

5 .0

2026-02-08

Excellent 1G BiDi optics for bulk deployment.

117 Helpful vote Comments

S***z

France

Verified Purchase

5 .0

2026-01-30

Solid 1G SFP BiDi transceiver for the price.

209 Helpful vote Comments

A***l

Hong Kong

Verified Purchase

5 .0

2026-01-30

Perfect OEM compatible 1G BiDi SFP.

101 Helpful vote Comments

L***s

Philippines

Verified Purchase

5 .0

2026-01-19

Accurate 1490nm-TX/1310nm-RX DOM readings on Cisco.

215 Helpful vote Comments

R***l

Sweden

Verified Purchase

5 .0

2026-01-14

The DDM capability on these 1G BiDi SFPs makes troubleshooting fiber issues a breeze.

52 Helpful vote Comments

S***n

Austria

Verified Purchase

5 .0

2025-12-24

Awesome operating temperature stability in outdoor cabinets. ❄️

132 Helpful vote Comments

C***t

Belgium

Verified Purchase

5 .0

2025-12-18

Great BiDi module for campus fiber networking.

181 Helpful vote Comments

D***n

Poland

Verified Purchase

5 .0

2025-12-01

Highly recommend this OEM compatible SFP for rural ISP base station backhaul.

75 Helpful vote Comments

M***l

Czech Republic

Verified Purchase

5 .0

2025-10-17

Incredible value for B2B procurement! These OEM compatible optics matched our standard protocol requirements exactly. Getting reliable 20km single-mode transmission with built-in DDM at this price point drastically lowers our total ownership cost.

152 Helpful vote Comments

W***z

Macao

Verified Purchase

5 .0

2025-09-26

Reliable SMF bidi optical transceiver module. (^_^)

81 Helpful vote Comments

J***n

Singapore

Verified Purchase

5 .0

2025-09-22

Great price and always has what I'm looking for.

44 Helpful vote Comments

B***n

Costa Rica

Verified Purchase

5 .0

2025-09-11

Using this industrial optical transceiver for outdoor cabinet deployment across a large campus. It easily survives extreme operating temperatures. The TX/RX sensitivity is fantastic, maintaining a stable 1G link without signal degradation.

199 Helpful vote Comments

N***i

Hong Kong

Verified Purchase

5 .0

2025-08-30

Simple and quick, smooth transaction! Thank you.

50 Helpful vote Comments

N***m

Germany

Verified Purchase

5 .0

2025-08-22

high quality item & super Fast shipping

45 Helpful vote Comments

J***l

United Kingdom

Verified Purchase

5 .0

2025-08-07

The 10/25/40G Transceiver Modules are great and their service is even better. Most impressive was their communication throughout the entire process. They really answered and dealt with all my questions. Hands down, a superior online shopping experience compared to the local shop.

49 Helpful vote Comments

R***n

Republic of Korea

Verified Purchase

5 .0

2025-07-30

Great organization to do business with. Shipping is extremely rapid. Prices are good.

102 Helpful vote Comments

J***e

Colombia

Verified Purchase

5 .0

2025-07-01

Zero packet loss over the 20km link. ✨

61 Helpful vote Comments

P***z

Bolivia

Verified Purchase

5 .0

2025-06-27

Simple plug and play simplex SC interface!

227 Helpful vote Comments

T***n

United States

Verified Purchase

5 .0

2025-06-27

Slashes our cabling costs since this BiDi transceiver uses simplex SC fiber.

138 Helpful vote Comments

M***g

Canada

Verified Purchase

5 .0

2025-06-21

I'm still amazed by the quality and price when it comes to l-p.com's products. Truly high quality, from the box they are arrive in to the product it self.

48 Helpful vote Comments

M***s

Indonesia

Verified Purchase

5 .0

2025-06-08

Handles 20km transmission distance effortlessly without any drop in TX/RX optical power.

227 Helpful vote Comments

S***g

Viet Nam

Verified Purchase

4 .0