This standard unit operates at 0-70°C. We need to deploy in outdoor street cabinets where temps drop below freezing. Do you have an industrial-grade equivalent?

Yes! While the LS-BL31551G-15C is designed for commercial environments (0°C to 70°C), we offer the LS-BL31551G-15I model, an industrial-grade version rated for extreme wide temperatures (-40°C to 85°C), perfect for outdoor base station deployments.

Can I use multimode fiber with this transceiver, or is it strictly limited to standard OS2 single-mode fiber patch cables?

This specific optical module is engineered exclusively for Single-Mode Fiber (SMF) networks using a Simplex LC connector interface. Connecting it to multimode fiber will cause severe modal dispersion and drastically reduce your 15km transmission range.

I'm planning a campus network upgrade and need about 200 units of these 15km BiDi modules. Do you offer tier pricing or bulk discounts for large rollouts?

We definitely do. We provide specialized volume pricing for B2B procurement. For a batch order of this size, please contact our sales team or apply the tier discount codes directly at checkout to significantly lower your unit price.

We run a mix of Cisco Catalyst and Ubiquiti EdgeSwitches in our data center. Will this LS-BL31551G-15C module plug and play without triggering "unsupported transceiver" errors?

Yes, absolutely! This 1G BiDi SFP is strictly MSA compliant. It seamlessly interoperates with Cisco, Ubiquiti, Aruba, and most major OEM switches without throwing any third-party block errors.

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LINK-PP LS-BL31551G-15C 1G SFP BiDi 1310nm-TX/1550nm-RX 15km Simplex LC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-BL31551G-15C 1G SFP BiDi 1310nm-TX/1550nm-RX 15km Simplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 181809
Price: 5.59 USD
Availability: InStock
Rating: 5 (45 reviews)

# 181809

Product: LINK-PP LS-BL31551G-15C 1G SFP BiDi 1310nm-TX/1550nm-RX 15km Simplex LC DOM SMF Optical Transceiver Module
SKU: 181809
P/N: LS-BL31551G-15C
Price: $ 6.5
Stock: 1850 in Stock
Sold: 1.2K
Product URL: https://www.l-p.com/products/476907.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

45 Reviews

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$ 5.98

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Manufacture: LINK-PP

P/N: LS-BL31551G-15C

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-BL31551G-15C 1G BiDi SFP Specifications

The LINK-PP LS-BL31551G-15C is a high-performance 1G BiDi SFP optical module designed for Gigabit Ethernet applications. It supports a 1.25Gbps data rate and delivers reliable bidirectional data transmission over a single-mode fiber. Operating at a commercial temperature range, this transceiver guarantees excellent network stability and strictly complies with SFP MSA standards.

LINK-PP Part Number	LS-BL31551G-15C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1310nm-TX/1550nm-RX	Max Cable Distance	15km
Connector	Simplex LC	Media	SMF
Transmitter Type	FP	Receiver Type	PIN
TX Power	-5 to 0dBm	RX Power	-23 to -1dBm
Receiver Sensitivity	<-24dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: This standard unit operates at 0-70°C. We need to deploy in outdoor street cabinets where temps drop below freezing. Do you have an industrial-grade equivalent? By A***t on 2026-05-30

A: Yes! While the LS-BL31551G-15C is designed for commercial environments (0°C to 70°C), we offer the LS-BL31551G-15I model, an industrial-grade version rated for extreme wide temperatures (-40°C to 85°C), perfect for outdoor base station deployments. By admin on 2026-05-31
Q: Can I use multimode fiber with this transceiver, or is it strictly limited to standard OS2 single-mode fiber patch cables? By M***s on 2026-04-05

A: This specific optical module is engineered exclusively for Single-Mode Fiber (SMF) networks using a Simplex LC connector interface. Connecting it to multimode fiber will cause severe modal dispersion and drastically reduce your 15km transmission range. By admin on 2026-04-05
Q: I'm planning a campus network upgrade and need about 200 units of these 15km BiDi modules. Do you offer tier pricing or bulk discounts for large rollouts? By J***r on 2025-12-04

A: We definitely do. We provide specialized volume pricing for B2B procurement. For a batch order of this size, please contact our sales team or apply the tier discount codes directly at checkout to significantly lower your unit price. By admin on 2025-12-05
Q: We run a mix of Cisco Catalyst and Ubiquiti EdgeSwitches in our data center. Will this LS-BL31551G-15C module plug and play without triggering "unsupported transceiver" errors? By B***z on 2025-10-18

A: Yes, absolutely! This 1G BiDi SFP is strictly MSA compliant. It seamlessly interoperates with Cisco, Ubiquiti, Aruba, and most major OEM switches without throwing any third-party block errors. By admin on 2025-10-18

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M***s

Mexico

Verified Purchase

5 .0

2026-06-16

Fantastic optical transceiver for upgrading telecom networks.

171 Helpful vote Comments

C***n

Sweden

Verified Purchase

5 .0

2026-04-26

1310nm/1550nm BiDi setup was easy to install.

125 Helpful vote Comments

S***n

Denmark

Verified Purchase

5 .0

2026-03-02

Great value for bulk data center deployment.

173 Helpful vote Comments

S***s

Dominican Republic

Verified Purchase

5 .0

2026-02-10

Using these for base station backhaul, the 15km range is exactly what we needed.

94 Helpful vote Comments

A***e

Singapore

Verified Purchase

5 .0

2026-01-30

We manage multiple outdoor enclosures. Even though these are 0-70°C commercial grade, they run surprisingly cool. Perfect single-mode fiber connectivity for our ISP broadband access nodes. Fantastic ROI compared to OEM!

117 Helpful vote Comments

A***s

Canada

Verified Purchase

5 .0

2026-01-05

DDM works flawlessly on these 1G SFPs.

93 Helpful vote Comments

C***s

Indonesia

Verified Purchase

5 .0

2025-12-19

We deployed these MSA compliant transceivers in our server room, connection is rock solid.

85 Helpful vote Comments

A***z

Austria

Verified Purchase

5 .0

2025-12-09

Excellent 15km transmission with zero packet drop! ✨

179 Helpful vote Comments

K***r

Portugal

Verified Purchase

5 .0

2025-10-27

Provisioned a batch of these LS-BL31551G-15C SFPs on our mixed-vendor core switches (Aruba and Ubiquiti). Complete plug-and-play experience. The simplex LC interface drastically simplified our patching overhead. Solid 1.25Gbps performance! ⚙️

27 Helpful vote Comments

C***h

Costa Rica

Verified Purchase

5 .0

2025-10-14

Excellent gigabit fibre channel support, no CRC errors during our heavy weekend stress tests.

62 Helpful vote Comments

R***n

Bolivia

Verified Purchase

5 .0

2025-10-09

Perfect Simplex LC modules for campus network!

165 Helpful vote Comments

L***z

Bolivia

Verified Purchase

5 .0

2025-09-02

Upgraded our enterprise network with 50 units. Flawless interoperability with multiple switch brands.

76 Helpful vote Comments

J***n

United Kingdom

Verified Purchase

5 .0

2025-08-22

Cost-effective single-mode fiber solution for enterprise IT.

114 Helpful vote Comments

D***s

New Zealand

Verified Purchase

5 .0

2025-08-07

Stable 0-70°C operation in our indoor racks.

87 Helpful vote Comments

M***z

Ecuador

Verified Purchase

5 .0

2025-08-02

The DOM monitoring is super handy for keeping an eye on laser bias current.

30 Helpful vote Comments

D***l

Philippines

Verified Purchase

5 .0

2025-06-20

MSA compliant, fully compatible with Juniper gear. ✅

116 Helpful vote Comments

J***n

Argentina

Verified Purchase

5 .0

2025-06-11

Reliable 1.25Gbps speeds for remote office connections.

126 Helpful vote Comments

A***z

Russian Federation

Verified Purchase

4 .0

2025-05-14

Solid 1G BiDi transceivers, but the outer carton got crushed during transit. Modules survived.

92 Helpful vote Comments

S***l

Belgium

Verified Purchase

4 .0

2025-04-25

Good 15km SMF modules, works fine. Delivery delayed by a day due to customs.

143 Helpful vote Comments

R***s

Czech Republic

Verified Purchase

5 .0

2025-04-15

As a network admin, I need reliable 15km SMF transceivers for long-haul site links. The TX/RX signal integrity on these is phenomenal, no latency spikes. A must-have for any serious telecom infrastructure.

52 Helpful vote Comments

J***s

Ukraine

Verified Purchase

5 .0

2025-04-15

Reliable commercial temp 0-70°C operation. Running perfectly in our standard climate-controlled facility. ❄️

111 Helpful vote Comments

S***z

Republic of Korea

Verified Purchase

5 .0

2025-03-06

Linked our NAS to the main switch over SMF. These 1G BiDis work great!

57 Helpful vote Comments

M***n

Costa Rica

Verified Purchase

5 .0

2025-02-20

Single fiber LC connectivity saved us so much space in the cabling infrastructure.

37 Helpful vote Comments

D***l

Denmark

Verified Purchase

5 .0

2025-01-02

Tested these 1G BiDi modules across a 12km campus fiber ring. The 1310nm-TX/1550nm-RX pairing is highly stable. DOM readings match our expensive Fluke testers perfectly. Highly recommended for cost-effective enterprise rollouts.

49 Helpful vote Comments

A***s

Peru

Verified Purchase

5 .0

2024-12-25

Plug and play on our Cisco switches.

179 Helpful vote Comments

R***s

Canada

Verified Purchase

5 .0

2024-06-03

Very quick service. Had the items in two days.

21 Helpful vote Comments

J***u

Lithuania

Verified Purchase

5 .0

2024-05-02

Thank you for the great products and support.

63 Helpful vote Comments

A***a

Indonesia

Verified Purchase

5 .0

2024-03-31

Just what I needed, in stock and reasonably priced. No reservations recommending l-p.com.

68 Helpful vote Comments

K***n

Netherlands

Verified Purchase

5 .0

2024-03-22

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!!!

47 Helpful vote Comments

E***s

Sweden

Verified Purchase

5 .0

2023-12-01

Please keep up the good work in having a great selection and Fast shipping!

88 Helpful vote Comments

J***x

United States

Verified Purchase

5 .0