We are planning to use existing single-mode fiber runs. What fiber type is this 1550nm-TX/1310nm-RX module compatible with?

This 1G BiDi SFP uses a Simplex SC connector and is specifically designed to work over standard 9/125碌m single-mode fiber (SMF). Just ensure you pair it with the opposite 1310nm-TX/1550nm-RX module on the other end to establish the link!

Are these modules certified for global telecom compliance and safety standards? We have strict regulatory requirements for our infrastructure upgrades.

Yes, they fully comply with international industry standards, including CE, FCC, RoHS, and FDA requirements. We strictly adhere to MSA specifications, ensuring complete compliance for enterprise and global telecom deployments.

Our purchasing team is trying to cut costs. Does this Simplex SC DDM SMF optical transceiver perform just as well as the expensive original OEM brands?

You'll get exactly the same premium performance. Our transceivers use top-tier DFB lasers and PIN receivers, matching the throughput, DDM accuracy, and long-term reliability of original brands, but at a fraction of the cost, maximizing your ROI.

We run a mix of Cisco and Juniper switches in our local ISP network. Will this 1G BiDi SFP module play nice with them without triggering unsupported transceiver errors?

Yes! This transceiver strictly complies with MSA standards. It features perfect OEM interoperability, so it will seamlessly plug into your Cisco, Juniper, and other major brand gear without throwing any "unsupported" alarms.

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LINK-PP LS-SC55311G-20I 1G SFP BiDi 1550nm-TX/1310nm-RX 20km Simplex SC DDM SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-SC55311G-20I 1G SFP BiDi 1550nm-TX/1310nm-RX 20km Simplex SC DDM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 202202
Price: 13.33 USD
Availability: InStock
Rating: 4.9 (25 reviews)

# 202202

Product: LINK-PP LS-SC55311G-20I 1G SFP BiDi 1550nm-TX/1310nm-RX 20km Simplex SC DDM SMF Optical Transceiver Module (Industrial)
SKU: 202202
P/N: LS-SC55311G-20I
Price: $ 15.5
Stock: 90 in Stock
Sold: 810
Product URL: https://www.l-p.com/products/491681.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-SC55311G-20I

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-SC55311G-20I 1G BiDi SFP Specifications

The LINK-PP LS-SC55311G-20I is an industrial Gigabit SFP transceiver engineered for robust data communication. Utilizing advanced WDM technology, this 1G BiDi optical transceiver operates over single-mode fiber to deliver reliable 1000BASE-BX connectivity. Built to withstand extreme environments, it provides exceptional network performance for critical industrial and outdoor telecom infrastructure deployments.

LINK-PP Part Number	LS-SC55311G-20I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1550nm-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	-40 to 85°C

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Q: We are planning to use existing single-mode fiber runs. What fiber type is this 1550nm-TX/1310nm-RX module compatible with? By J***n on 2026-06-01

A: This 1G BiDi SFP uses a Simplex SC connector and is specifically designed to work over standard 9/125碌m single-mode fiber (SMF). Just ensure you pair it with the opposite 1310nm-TX/1550nm-RX module on the other end to establish the link! By admin on 2026-06-01
Q: Are these modules certified for global telecom compliance and safety standards? We have strict regulatory requirements for our infrastructure upgrades. By M***z on 2025-07-12

A: Yes, they fully comply with international industry standards, including CE, FCC, RoHS, and FDA requirements. We strictly adhere to MSA specifications, ensuring complete compliance for enterprise and global telecom deployments. By admin on 2025-07-12
Q: Our purchasing team is trying to cut costs. Does this Simplex SC DDM SMF optical transceiver perform just as well as the expensive original OEM brands? By C***l on 2025-07-03

A: You'll get exactly the same premium performance. Our transceivers use top-tier DFB lasers and PIN receivers, matching the throughput, DDM accuracy, and long-term reliability of original brands, but at a fraction of the cost, maximizing your ROI. By admin on 2025-07-03
Q: We run a mix of Cisco and Juniper switches in our local ISP network. Will this 1G BiDi SFP module play nice with them without triggering unsupported transceiver errors? By E***n on 2025-04-06

A: Yes! This transceiver strictly complies with MSA standards. It features perfect OEM interoperability, so it will seamlessly plug into your Cisco, Juniper, and other major brand gear without throwing any "unsupported" alarms. By admin on 2025-04-06

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P***n

United States

Verified Purchase

5 .0

2026-07-22

Switched to these Simplex SC modules for rack links. Saved tons on fiber cabling!

105 Helpful vote Comments

S***a

Macao

Verified Purchase

5 .0

2026-07-02

Installed this 1G BiDi SFP in our factory; the industrial wide-temp handles heat perfectly.

226 Helpful vote Comments

D***r

Italy

Verified Purchase

5 .0

2026-06-10

Good build quality, simplex SC saves fibers.

58 Helpful vote Comments

J***l

Ecuador

Verified Purchase

5 .0

2026-05-22

Best 20km single-mode SFP for the price!

58 Helpful vote Comments

M***e

Switzerland

Verified Purchase

5 .0

2026-05-11

Tested Cisco compatible BiDi SFP against multiple switch brands in our data center interconnect. Flawless DOM monitoring, zero packet loss over 20km single-mode SFP links. Excellent bulk procurement value!

77 Helpful vote Comments

A***e

Belgium

Verified Purchase

5 .0

2026-04-06

Handles 20km transmission without any weird hiccups.

230 Helpful vote Comments

C***n

Austria

Verified Purchase

5 .0

2026-04-06

Excellent transceiver for railway communication networks. The -40 to 85°C rating is a lifesaver.

212 Helpful vote Comments

A***s

Republic of Korea

Verified Purchase

5 .0

2026-03-28

Perfect for our outdoor fiber network cabinet.

42 Helpful vote Comments

J***e

Saudi Arabia

Verified Purchase

4 .0

2026-03-25

Box arrived a bit crushed, but the industrial SC transceiver works flawlessly outdoors.

16 Helpful vote Comments

C***n

Chile

Verified Purchase

5 .0

2026-03-22

Great DDM SFP module, super fast delivery!

109 Helpful vote Comments

C***z

Brazil

Verified Purchase

5 .0

2026-03-05

Used these for a local ISP broadband access project. The 1.25Gbps throughput is stable.

188 Helpful vote Comments

P***a

Macao

Verified Purchase

5 .0

2026-02-24

Reliable 1550nm-TX/1310nm-RX pair for campus networks.

115 Helpful vote Comments

S***a

Poland

Verified Purchase

5 .0

2026-02-02

Ideal SMF optical transceiver for harsh environments.

56 Helpful vote Comments

M***n

Peru

Verified Purchase

5 .0

2025-11-15

DDM readings on this 20km single-mode SFP match our expensive OEM optics exactly.

51 Helpful vote Comments

S***s

Kuwait

Verified Purchase

5 .0

2025-11-09

Fits snugly into our multi-brand switches. The 1550nm-TX transmitter pushes strong signals over SMF.

141 Helpful vote Comments

S***e

Peru

Verified Purchase

5 .0

2025-10-17

Using this 1G module for an industrial automation site and my home 10G NAS management link. The SC connector is robust, DDM support is handy. Solid optical transceiver!

170 Helpful vote Comments

M***n

Sweden

Verified Purchase

5 .0

2025-10-14

Deployed these 1550nm-TX/1310nm-RX modules in our outdoor cabinets for base station backhaul. The -40 to 85°C industrial rating is legit. DDM readings are incredibly stable despite extreme weather.

246 Helpful vote Comments

J***l

Panama

Verified Purchase

5 .0

2025-08-30

Great value for data center batch deployment. The Simplex SC connector is incredibly sturdy.

42 Helpful vote Comments

T***s

Panama

Verified Purchase

5 .0

2025-07-14

DOM monitoring is accurate. Highly recommend it!

135 Helpful vote Comments

B***e

Ecuador

Verified Purchase

5 .0

2025-06-22

Industrial SC transceiver works at -40°C easily.

190 Helpful vote Comments

R***s

France

Verified Purchase

4 .0

2025-06-09

Shipping took 5 days instead of 3, yet the 1G BiDi SFP performs well.

12 Helpful vote Comments

K***l

Norway

Verified Purchase

5 .0

2025-05-29

Upgraded a campus fiber network using this Simplex SC DDM SMF optical transceiver. Halved our fiber requirements instantly. Signal stays strong at -20dBm RX power across a 15km run.

134 Helpful vote Comments

E***s

Sweden

Verified Purchase

5 .0

2025-05-27

Solid Cisco compatible BiDi SFP network module.

70 Helpful vote Comments

T***z

Panama

Verified Purchase

5 .0