Hello, are these 1G BiDi SFPs really MSA compliant? I’m running a mix of Cisco Catalyst and Ubiquiti EdgeSwitches, so I need to be sure they won't throw any incompatible transceiver errors.

Absolutely! The LS-BL55311G-60I is fully MSA compliant and coded for broad OEM compatibility. Our IT clients regularly drop these into Cisco, Ubiquiti, and Arista gear with zero vendor lock-in errors or link issues.

We’re prepping a massive campus fiber rollout and need around 200 of these modules. Do you guys offer bulk discounts for batch deployments?

Yes, we have robust tier-pricing for B2B procurement! A 200-unit batch drops the unit price significantly. You can apply our site-wide B2B promo codes at checkout, or just ping our live chat for a tailored wholesale quote to stretch your budget.

Does the Simplex LC interface require UPC or APC polish, and is it SMF only?

Correct, this module requires standard LC UPC connectors and is designed exclusively for Single Mode Fiber (SMF). This ensures the maximum optical link budget and low signal attenuation required for that full 60km transmission distance.

Lead times are killing our projects right now. If I order 50 pieces today for an upcoming datacenter build, when will they actually ship?

We keep high inventory levels to ensure supply chain stability. An order of 50 units will ship out within 2 business day, and standard transit takes just 2-5 days. Your project timeline is safe with us!

I’m deploying these in unconditioned outdoor cabinets. Is that -40°C to 85°C industrial rating legitimate for 24/7 uptime in extreme weather?

100% legitimate. This industrial-grade transceiver uses a heavy-duty DFB laser and optimized thermal design. It's built specifically to handle freezing winters and scorching summers without thermal throttling or dropping packets.

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LINK-PP LS-BL55311G-60I 1G SFP BiDi 1550nm-TX/1310nm-RX 60km Simplex LC DOM SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-BL55311G-60I 1G SFP BiDi 1550nm-TX/1310nm-RX 60km Simplex LC DOM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 202082
Price: 9.288 USD
Availability: InStock
Rating: 5 (52 reviews)

# 202082

Product: LINK-PP LS-BL55311G-60I 1G SFP BiDi 1550nm-TX/1310nm-RX 60km Simplex LC DOM SMF Optical Transceiver Module (Industrial)
SKU: 202082
P/N: LS-BL55311G-60I
Price: $ 10.8
Stock: 110 in Stock
Sold: 990
Product URL: https://www.l-p.com/products/491565.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

52 Reviews

5 Questions

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$ 10.26

1000

$ 9.936

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Manufacture: LINK-PP

P/N: LS-BL55311G-60I

Compatible:: LINK-PP

Compatible P/N:: LS-BL31551G-02C | 2km; LS-BL55311G-02C | 2km; LS-BL31551G-03C | 3km; LS-BL31551G-03I | 3km; LS-BL55311G-03C | 3km; LS-BL55311G-03I | 3km; LS-BL31491G-10C | 10km; LS-BL31491G-10I | 10km; LS-BL31551G-10C | 10km; LS-BL31551G-10I | 10km; LS-BL31551GE-10C | 10km; LS-BL49311G-10C | 10km; LS-BL49311G-10I | 10km; LS-BL49551G-10C | 10km; LS-BL49551G-10I | 10km; LS-BL55311G-10C | 10km; LS-BL55311G-10I | 10km; LS-BL55311GE-10C | 10km; LS-BL55491G-10C | 10km; LS-BL55491G-10I | 10km; LS-BL31551G-15C | 15km; LS-BL31491G-20C | 20km; LS-BL31491G-20I | 20km; LS-BL31551G-20C | 20km; LS-BL31551G-20I | 20km; LS-BL49311G-20C | 20km; LS-BL49311G-20I | 20km; LS-BL49551G-20C | 20km; LS-BL55311G-20C | 20km; LS-BL55311G-20I | 20km; LS-BL55491G-20C | 20km; LS-BL31491G-40C | 40km; LS-BL31491G-40I | 40km; LS-BL31551G-40C | 40km; LS-BL31551G-40I | 40km; LS-BL49311G-40C | 40km; LS-BL49311G-40I | 40km; LS-BL55311G-40C | 40km; LS-BL55311G-40I | 40km; LS-BL31551G-60C | 60km; LS-BL31551G-60I | 60km; LS-BL49551G-60C | 60km; LS-BL55311G-60C | 60km; LS-BL55311G-60I | 60km; LS-BL55491G-60C | 60km; LS-BL27331G-80C | 80km; LS-BL33271G-80C | 80km; LS-BL49551G-80C | 80km; LS-BL49551G-80I | 80km; LS-BL55491G-80C | 80km; LS-BL55491G-80I | 80km; LS-BL49551G-A0C | 100km; LS-BL49551G-A0I | 100km; LS-BL55491G-A0C | 100km; LS-BL55491G-A0I | 100km; LS-BL49551G-A2C | 120km; LS-BL49551G-A2I | 120km; LS-BL55491G-A2C | 120km; LS-BL55491G-A2I | 120km; LS-BL49551G-A5C | 150km; LS-BL49551G-A5I | 150km; LS-BL55491G-A5C | 150km; LS-BL55491G-A5I | 150km; LS-BL49551G-A6C | 160km; LS-BL49551G-A6I | 160km; LS-BL55491G-A6C | 160km; LS-BL55491G-A6I | 160km

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LINK-PP LS-BL55311G-60I 1G BiDi SFP Specifications

The LINK-PP LS-BL55311G-60I is a high-performance industrial grade optical transceiver engineered for robust long-reach networking. Supporting up to 1.25Gbps bit rates, this hot-pluggable single mode fiber module operates flawlessly in extreme environmental temperatures ranging from -40°C to 85°C. Fully SFP MSA compliant, it guarantees highly stable and cost-effective SMF transmission across diverse telecommunication applications.

LINK-PP Part Number	LS-BL55311G-60I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1550nm-TX/1310nm-RX	Max Cable Distance	60km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-5 to 0dBm	RX Power	-23 to -1dBm
Receiver Sensitivity	<-24dBm	DOM Support	Yes
Operating Temperature Range	-40 to 85°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: Hello, are these 1G BiDi SFPs really MSA compliant? I’m running a mix of Cisco Catalyst and Ubiquiti EdgeSwitches, so I need to be sure they won't throw any incompatible transceiver errors. By J***n on 2026-07-04

A: Absolutely! The LS-BL55311G-60I is fully MSA compliant and coded for broad OEM compatibility. Our IT clients regularly drop these into Cisco, Ubiquiti, and Arista gear with zero vendor lock-in errors or link issues. By admin on 2026-07-04
Q: We’re prepping a massive campus fiber rollout and need around 200 of these modules. Do you guys offer bulk discounts for batch deployments? By R***r on 2026-06-04

A: Yes, we have robust tier-pricing for B2B procurement! A 200-unit batch drops the unit price significantly. You can apply our site-wide B2B promo codes at checkout, or just ping our live chat for a tailored wholesale quote to stretch your budget. By admin on 2026-06-04
Q: Does the Simplex LC interface require UPC or APC polish, and is it SMF only? By M***r on 2026-05-27

A: Correct, this module requires standard LC UPC connectors and is designed exclusively for Single Mode Fiber (SMF). This ensures the maximum optical link budget and low signal attenuation required for that full 60km transmission distance. By admin on 2026-05-27
Q: Lead times are killing our projects right now. If I order 50 pieces today for an upcoming datacenter build, when will they actually ship? By J***s on 2026-03-30

A: We keep high inventory levels to ensure supply chain stability. An order of 50 units will ship out within 2 business day, and standard transit takes just 2-5 days. Your project timeline is safe with us! By admin on 2026-03-31
Q: I’m deploying these in unconditioned outdoor cabinets. Is that -40°C to 85°C industrial rating legitimate for 24/7 uptime in extreme weather? By J***l on 2026-03-21

A: 100% legitimate. This industrial-grade transceiver uses a heavy-duty DFB laser and optimized thermal design. It's built specifically to handle freezing winters and scorching summers without thermal throttling or dropping packets. By admin on 2026-03-21

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R***n

Poland

Verified Purchase

5 .0

2026-05-23

Upgraded our enterprise SAN with these Simplex LC SMF modules. Hitting steady 1.25Gbps without dropped packets. The 1550nm-TX/1310nm-RX split works brilliantly over our 50km long-haul links. Outstanding TCO compared to native brand optics! (^_−)−☆

112 Helpful vote Comments

J***k

Mexico

Verified Purchase

5 .0

2026-04-26

We batch-deployed these industrial optical transceivers for an expansive campus fiber network. The DOM/DDM support is a lifesaver for proactive monitoring. OEM compatibility was spot-on across our mixed HP and Ubiquiti environment. Highly recommended.

180 Helpful vote Comments

R***k

Viet Nam

Verified Purchase

5 .0

2026-03-30

Batch deployed 50 units for municipal network links. Excellent 1.25Gbps optical link budget and reliability.

104 Helpful vote Comments

M***n

Belgium

Verified Purchase

5 .0

2026-03-10

DOM works perfectly on my homelab router.

81 Helpful vote Comments

M***l

Taiwan, Province of China

Verified Purchase

4 .0

2026-02-06

The 1G BiDi SFP modules work great, but the outer box arrived slightly dented.

112 Helpful vote Comments

M***l

France

Verified Purchase

5 .0

2026-01-27

Needed robust industrial optical transceivers for outdoor cabinets in winter. These haven't dropped a ping. ❄️

79 Helpful vote Comments

J***e

Canada

Verified Purchase

5 .0

2025-12-13

Simplex LC setup saved us fiber strands on our SAN storage networking.

106 Helpful vote Comments

R***r

Maldives

Verified Purchase

5 .0

2025-11-12

Awesome quality / price / support ! Will do business again.

78 Helpful vote Comments

W***g

Singapore

Verified Purchase

5 .0

2025-11-05

Awesome DDM! I can monitor laser bias current and temps directly from the console.

188 Helpful vote Comments

D***y

Germany

Verified Purchase

5 .0

2025-10-12

I am very happy

100 Helpful vote Comments

C***n

Philippines

Verified Purchase

5 .0

2025-09-14

Very good compatible product for all your Optical Transceiver Module

66 Helpful vote Comments

S***z

Spain

Verified Purchase

5 .0

2025-08-24

Using this 1550nm-TX/1310nm-RX module for my home NAS. Very stable gigabit throughput so far.

135 Helpful vote Comments

J***s

Russian Federation

Verified Purchase

5 .0

2025-08-22

Swift and accurate delivery. Excellent service.

71 Helpful vote Comments

D***s

Greece

Verified Purchase

5 .0

2025-08-16

Flawless 1550nm-TX/1310nm-RX SMF module.

161 Helpful vote Comments

A***e

Ireland

Verified Purchase

4 .0

2025-07-21

Good industrial transceivers, though tracking info was delayed by two days. Function flawlessly.

185 Helpful vote Comments

R***s

Costa Rica

Verified Purchase

5 .0

2025-06-27

Runs cool even in harsh Texas heat. ☀️

65 Helpful vote Comments

M***l

Mexico

Verified Purchase

5 .0

2025-06-04

Zero packet loss on cell tower backhaul.

121 Helpful vote Comments

S***i

Hungary

Verified Purchase

5 .0

2025-05-24

It was really easy to navigate and place the order.I have ordered for years from them and always have a great experience, time after time! I will continue ordering for the rest of our lives!!!

123 Helpful vote Comments

A***a

Sweden

Verified Purchase

5 .0

2025-05-09

Their price was significantly lower than the competition. Nice! And accurate communication and delivery was good.

53 Helpful vote Comments

P***z

South Africa

Verified Purchase

5 .0

2025-04-20

No issues syncing with our Cisco switches.

205 Helpful vote Comments

R***t

Germany

Verified Purchase

5 .0

2025-02-26

Replaced failing non-industrial optics in our outdoor cabinets with this LINK-PP model. The DFB laser output is strong, receiver sensitivity is excellent, and it survives freezing European winters. Perfect for our rugged Edge deployments!

151 Helpful vote Comments

M***n

Russian Federation

Verified Purchase

5 .0

2025-01-14

Fast Ethernet and Fiber Channel support makes this LINK-PP module versatile for our datacenters.

101 Helpful vote Comments

E***z

Russian Federation

Verified Purchase

5 .0

2025-01-02

Solid 60km range on our campus fiber.

114 Helpful vote Comments

M***n

Romania

Verified Purchase

5 .0

2024-12-18

The delivery is Fast. After receiving the package from Link-pp, I unpackaged it to check post shipping condition. The product was well packaged with no damage.

20 Helpful vote Comments

S***z

Bolivia

Verified Purchase

5 .0

2024-12-03

Deployed 1G BiDi SFP 60km optics in our warehouse. The -40~85C rating is completely legit!

170 Helpful vote Comments

D***g

Ukraine

Verified Purchase

5 .0

2024-11-26

Plug and play 1.25G BiDi module. ⚡

160 Helpful vote Comments

M***a

United States

Verified Purchase

5 .0

2024-11-24

Very satisfied with the buying experience. Will certainly buy from them again.

50 Helpful vote Comments

P***s

Colombia

Verified Purchase

5 .0

2024-11-09

Perfect 1G Simplex LC link for outdoor cabinets.

175 Helpful vote Comments

L***r

Costa Rica

Verified Purchase

5 .0

2024-11-09

Tested OEM compatibility across Juniper and Arista switches. The MSA compliant SFP synced immediately.

115 Helpful vote Comments

A***s

Colombia

Verified Purchase

5 .0

2024-10-30

MSA compliant and recognized instantly! \o/

193 Helpful vote Comments

T***g

Macao

Verified Purchase

5 .0

2024-10-30

Great value for industrial optical transceiver deployment.

73 Helpful vote Comments

C***n

Ireland

Verified Purchase

5 .0

2024-10-29

Fast shipping and reliable WDM SFP performance.

54 Helpful vote Comments

B***e

Singapore

Verified Purchase

5 .0

2024-10-19

Super Product, will buy again.

54 Helpful vote Comments

J***n

Belgium

Verified Purchase

5 .0

2024-10-13

Managing ISP cell backhaul, finding reliable 1G SFP BiDi 60km modules is tough. This WDM transceiver pairs perfectly with our single-mode fiber. The -40°C to 85°C tolerance handles our exposed rural Texas sites flawlessly!

145 Helpful vote Comments

R***D

Russian Federation

Verified Purchase

5 .0

2024-09-27

When we needed assistance for product classification, the staff were there to help us. Thank you.

87 Helpful vote Comments

M***n

France

Verified Purchase

5 .0

2024-09-02

I love shopping for new/refurbished hard drives from this site.

72 Helpful vote Comments

R***k

United States

Verified Purchase

5 .0

2024-08-03

It was quick accurate and easy and delivery was Fast!

112 Helpful vote Comments

D***g

Belgium

Verified Purchase

5 .0

2024-04-08

Sent out the email and within a day had the answers and ordered from them. Will do business with them again.

35 Helpful vote Comments

J***n

Argentina

Verified Purchase

5 .0

2024-04-04

I have purchased numerous products from Link-pp and have highly recommended them to my friends due to their vast selection and inventory, easy to use website, Fast shipping. Keep up the good work, guys!

69 Helpful vote Comments

B***g

France

Verified Purchase

5 .0

2024-02-25

Good quality and a true plug and play experience!

37 Helpful vote Comments