What is the maximum data rate of this SFP module?

It supports a stable data rate up to 622Mbps for optical systems.

What fiber type and connector does it use?

It uses multi-mode fiber (MMF) with a duplex LC receptacle interface.

How far can this transceiver transmit data?

It reaches up to 550m on 50/125µm MMF and 300m on 62.5/125µm MMF.

What is the operating wavelength of the laser?

The module operates at a short-reach center wavelength of 850nm

We need to deploy some units in unheated outdoor cabinets. Does this model support industrial wide temps, or is it strictly indoor?

This specific LS-MM8506-S5C model is designed for standard commercial use (0°C to 70°C), which is perfect for indoor server rooms and standard data centers. If you need industrial-grade (-40°C to 85°C) for harsh outdoor environments, please check out our "LS-MM8506-S5I" version!

Quick question about the fiber type—can we push this to 550m using older 62.5/125µm MMF, or do we strictly need 50/125µm for that max distance?

Good question! To hit the maximum 550m transmission distance, you’ll definitely need standard 50/125µm multimode fiber. If you're running older 62.5/125µm MMF, the duplex LC connector will still adapt flawlessly, but your max stable distance will drop to about 300m.

We are maintaining an old telecom backbone. Does this DDM optical transceiver fully support SONET OC-12 and Fast Ethernet protocols?

You bet. This transceiver is specifically optimized for 622Mbps optical networks, fully supporting standard SONET OC-12, Fast Ethernet, and other legacy industry protocols. Plus, the built-in DDM/DOM function helps you monitor the link health in real time!

Hey guys, will this 622Mbps SFP module play nice with our old Cisco switches, or do I need a specific vendor coding?

Yes, it’s strictly MSA compliant! It supports seamless OEM compatibility, so it’s totally plug-and-play with Cisco, Juniper, and most major multi-brand legacy switches. No extra coding or tweaking is needed.

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Generic SFP-622SR-31 Compatible LINK-PP 622Mbps SFP 850nm 550m Duplex LC DOM MMF Optical Transceiver Module

Name: Generic SFP-622SR-31 Compatible LINK-PP 622Mbps SFP 850nm 550m Duplex LC DOM MMF Optical Transceiver Module
Brand: LINK-PP
SKU: 211537
Price: 5.074 USD
Availability: InStock
Rating: 5 (37 reviews)

# 211537

Product: Generic SFP-622SR-31 Compatible LINK-PP 622Mbps SFP 850nm 550m Duplex LC DOM MMF Optical Transceiver Module
SKU: 211537
P/N: LS-MM8506-S5C
Price: $ 5.9
Stock: 179 in Stock
Sold: 892
Product URL: https://www.l-p.com/products/491472.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-MM8506-S5C

Compatible:: LINK-PP; Generic

Compatible P/N:: SFP-GE-T | 100m; SFP-GE-T-I | 100m; SFP-GEB-T | 100m; SFP-GEB-T-IL | 100m; SFP-622SR-31 | 550m; SFP1G-SX-85 | 550m; SFP1G-SX-85-I | 550m; SFP1G-SX-31 | 2km; SFP1G-SX-31-I | 2km; SFP1G-LX-31 | 10km; SFP1G-LX-31-I | 10km; SFP1G-ELX-31 | 20km; SFP1G-LX-31 | 20km; SFP1G-EX-31 | 40km; SFP1G-EX-31-I | 40km; SFP1G-EX-55 | 40km; SFP1G-ZX-55 | 80km; SFP1G-ZX-55-I | 80km; SFP1G-ZX100-55 | 100km; SFP1G-ZX120-55 | 120km; SFP1G-ZX160-55 | 160km

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Generic SFP-622SR-31 Compatible LINK-PP 622Mbps SFP Specifications

The Generic SFP-622SR-31 Compatible LINK-PP module is a high-performance, cost-effective SFP transceiver designed for multi-mode fiber networks. Operating at a reliable data rate of 622Mbps, this hot-pluggable module features a 850nm VCSEL transmitter and PIN photo detector. It utilizes a single +3.3V power supply and supports comprehensive digital diagnostic monitoring for optimal system maintenance.

Generic Part Number	SFP-622SR-31	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	622Mbps
Wavelength	850nm	Max Cable Distance	550m
Connector	Duplex LC	Media	MMF
Transmitter Type	VCSEL	Receiver Type	PIN
TX Power	-9 to 0dBm	RX Power	-20 to -1dBm
Receiver Sensitivity	-18dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	MSA Compliant

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Q: We need to deploy some units in unheated outdoor cabinets. Does this model support industrial wide temps, or is it strictly indoor? By D***g on 2026-05-19

A: This specific LS-MM8506-S5C model is designed for standard commercial use (0°C to 70°C), which is perfect for indoor server rooms and standard data centers. If you need industrial-grade (-40°C to 85°C) for harsh outdoor environments, please check out our "LS-MM8506-S5I" version! By admin on 2026-05-19
Q: Quick question about the fiber type—can we push this to 550m using older 62.5/125µm MMF, or do we strictly need 50/125µm for that max distance? By S***a on 2025-11-21

A: Good question! To hit the maximum 550m transmission distance, you’ll definitely need standard 50/125µm multimode fiber. If you're running older 62.5/125µm MMF, the duplex LC connector will still adapt flawlessly, but your max stable distance will drop to about 300m. By admin on 2025-11-21
Q: We are maintaining an old telecom backbone. Does this DDM optical transceiver fully support SONET OC-12 and Fast Ethernet protocols? By A***g on 2025-11-05

A: You bet. This transceiver is specifically optimized for 622Mbps optical networks, fully supporting standard SONET OC-12, Fast Ethernet, and other legacy industry protocols. Plus, the built-in DDM/DOM function helps you monitor the link health in real time! By admin on 2025-11-05
Q: Hey guys, will this 622Mbps SFP module play nice with our old Cisco switches, or do I need a specific vendor coding? By L***n on 2025-05-16

A: Yes, it’s strictly MSA compliant! It supports seamless OEM compatibility, so it’s totally plug-and-play with Cisco, Juniper, and most major multi-brand legacy switches. No extra coding or tweaking is needed. By admin on 2025-05-16

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M***n

Finland

Verified Purchase

5 .0

2026-05-03

Solid 622Mbps SFP module!

72 Helpful vote Comments

A***s

Venezuela

Verified Purchase

5 .0

2026-04-13

Perfect for SONET OC-12 setups. The DDM readings are incredibly accurate so far.

52 Helpful vote Comments

R***z

Philippines

Verified Purchase

5 .0

2026-03-21

Good cheap 850nm LC transceiver.

112 Helpful vote Comments

M***n

United Arab Emirates

Verified Purchase

5 .0

2026-03-14

Fast shipping! The duplex LC connector feels super sturdy for repeated patching.

192 Helpful vote Comments

R***n

Poland

Verified Purchase

5 .0

2026-03-11

Perfect 550m transmission distance! (≧◡≦)

124 Helpful vote Comments

E***n

United States

Verified Purchase

5 .0

2026-01-15

Deployed a batch of these 622Mbps multimode SFPs for our legacy SONET OC-12 backhaul. DDM features are spot on for monitoring temp and voltage. Great for 550m campus fiber links!

187 Helpful vote Comments

S***e

Denmark

Verified Purchase

4 .0

2026-01-05

Shipping took two extra days. The 850nm LC transceiver itself is solid and MSA compliant.

162 Helpful vote Comments

D***a

Ukraine

Verified Purchase

5 .0

2025-12-01

Great VCSEL transmitter quality. Zero packet loss on the Fast Ethernet connections.

167 Helpful vote Comments

J***g

Australia

Verified Purchase

5 .0

2025-11-20

Replaced some failing optics in an outdoor cabinet with these MSA compliant SFP modules. Though commercial temp, they handle our mild climate fine. The DOM diagnostics saved me hours of troubleshooting.

180 Helpful vote Comments

J***d

Indonesia

Verified Purchase

5 .0

2025-10-07

The price was low but the quality was better than expected. They were an excellent value for my money. Highly recommend!

46 Helpful vote Comments

D***v

Ukraine

Verified Purchase

5 .0

2025-09-23

High compatibility, real world testing shows no difference in Speed compared to Belfuse original parts.

62 Helpful vote Comments

B***g

United States

Verified Purchase

5 .0

2025-09-10

Decent promotion.

26 Helpful vote Comments

M***t

India

Verified Purchase

5 .0

2025-08-26

Nice multimode SFP 550m, no issues.

82 Helpful vote Comments

D***r

Belarus

Verified Purchase

5 .0

2025-08-06

Product exactly as described. Shipped snugly. Good seller.

33 Helpful vote Comments

S***s

Belgium

Verified Purchase

5 .0

2025-07-29

Stable TX/RX in our server room.

186 Helpful vote Comments

P***z

Czech Republic

Verified Purchase

5 .0

2025-07-02

MSA compliant SFP, plug and play.

114 Helpful vote Comments

E***s

Denmark

Verified Purchase

5 .0

2025-04-20

Hooked it up to our Cisco switch. OEM compatibility is totally flawless here. (^_−)☆

124 Helpful vote Comments

R***y

Japan

Verified Purchase

5 .0

2025-04-03

No fuss, no drama - the product arrived on time, and worked perfectly.

86 Helpful vote Comments

N***p

Hungary

Verified Purchase

5 .0

2025-03-19

Always very personable and professional. Orders are filled and shipped timely, and usually arrive earlier than expected.

21 Helpful vote Comments

J***e

Ireland

Verified Purchase

5 .0

2025-03-15

Awesome DOM optical transceiver for standard 0-70C indoor telecom rooms. Very reliable piece!

159 Helpful vote Comments

J***n

Portugal

Verified Purchase

5 .0

2025-02-02

Duplex LC fits nice and tight.

148 Helpful vote Comments

M***z

Brunei Darussalam

Verified Purchase

5 .0

2025-01-23

A great way to buy Optical Transceiver Modules

55 Helpful vote Comments

S***a

Czech Republic

Verified Purchase

5 .0

2024-12-24

The 850nm LC transceiver easily hit the 550m distance on our campus network.

144 Helpful vote Comments

D***e

Finland

Verified Purchase

5 .0

2024-11-11

This 622Mbps SFP module handles our legacy PBX fiber link without any issues.

125 Helpful vote Comments

C***e

Egypt

Verified Purchase

5 .0

2024-11-02

Tested the PIN receiver sensitivity on this DDM optical transceiver. Rock solid at 300m on older 62.5/125µm fiber. No TX/RX drops in our 0-70C server room environment. Definitely buying more bulk!

92 Helpful vote Comments

M***n

Mexico

Verified Purchase

5 .0

2024-10-14

Commercial 0-70C temp works fine indoors.

82 Helpful vote Comments

J***n

Ireland

Verified Purchase

5 .0

2024-09-15

Very good compatible product for all your Optical Transceiver Module

49 Helpful vote Comments

J***e

Canada

Verified Purchase

5 .0

2024-09-02

Good pricing and good experience so far.

24 Helpful vote Comments

S***r

Finland

Verified Purchase

5 .0

2024-08-30

While the product we received is apt, what i am content about is the service right from the order placement where the technical spec and adaptability was checked and confirmed by the experts, to the delivery at the door step and if the product was in goods order. Special thanks to 'Yoeng' for splendid customer service.

56 Helpful vote Comments

O***n

Hungary

Verified Purchase

5 .0

2024-08-26

Can't say enough about the quality of Link-pp's customer service and quality products. Shop with confidence. They stand behind their stuff and are always quick, courtious and knowledgable!

70 Helpful vote Comments

J***d

Sweden

Verified Purchase

5 .0

2023-11-20

The cheapest 10/25/40G Transceiver Modules I have bought, but the best.

22 Helpful vote Comments

R***n

Denmark

Verified Purchase

5 .0

2023-10-22

A few things were back ordered but they stayed in contact about it every step of the way. A very good shopping experience.

99 Helpful vote Comments

J***n

Iran, Islamic Republic of

Verified Purchase

5 .0

2023-05-21

Very pleased with the experience.Everything is fine.

80 Helpful vote Comments

J***s

Turkey

Verified Purchase

5 .0

2023-05-14

My package was shipped quickly and was exactly as described.

66 Helpful vote Comments

S***u

Russian Federation

Verified Purchase

5 .0

2022-11-08

Support was prompt and answered my question in a very timely manner. Product shipped and arrived on time and as described.

55 Helpful vote Comments

J***r

Sweden

Verified Purchase

5 .0

2022-04-24

The good price for the Optical Transceiver is the most important reason I purchased here. This was the very thing that I needed plus I saved money by ordering from l-p.com.Thanks. Will recommend you to my friends and family.

51 Helpful vote Comments

T***t

United States

Verified Purchase

5 .0

2022-02-16

Prices and shipping prices are excellent value. Hope mext time will be better.

93 Helpful vote Comments