What is the transmission distance of this SFP module?

It supports data transmission up to 10km over single-mode fiber optic cabling.

Does this module require paired deployment?

Yes, it must pair with a TX1550nm/RX1310nm BiDi module on the opposite end.

Does the LS-BL31551G-10C support DOM function?

Yes, integrated DOM allows real-time monitoring of temperature, voltage, and optical power.

What connector interface does this transceiver use?

It features a simplex LC connector for single-strand fiber connectivity.

Will this 1G bidi SFP work with my old Cisco Catalyst switches without throwing unsupported transceiver errors?

Yes! This module is 100% MSA compliant and extensively tested for OEM compatibility. It is purely plug-and-play on Cisco Catalyst series and edge routers with no "unsupported transceiver" warnings.

Just to be sure, does this TX1310/RX1550 transceiver use multimode or single-mode fiber optic cabling?

It is designed strictly for Single-Mode Fiber (SMF) using a Simplex LC connector. Also, please remember you must pair it with a 1550nm-TX/1310nm-RX BiDi module on the opposite end for the link to negotiate successfully.

I'm buying for a datacenter refresh. Do you guys offer any discount for 100+ units of this 10km Simplex LC DOM module?

We absolutely support B2B mass procurement! For bulk orders over 100 pieces, the unit price drops automatically. You can also use our coupon codes at checkout or contact our live chat for a custom enterprise quote.

Is this optical module only for Gigabit Ethernet, or can it handle Fibre Channel for our SAN storage as well?

It supports both! The maximum data rate is 1.25Gbps, meaning it works flawlessly for Fast/Gigabit Ethernet protocols as well as 1G Gigabit Fibre Channel for your storage area networks.

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LINK-PP LS-BL31551G-10C 1G SFP BiDi 1310nm-TX/1550nm-RX 10km Simplex LC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-BL31551G-10C 1G SFP BiDi 1310nm-TX/1550nm-RX 10km Simplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 181232
Price: 5.848 USD
Availability: InStock
Rating: 5 (34 reviews)

# 181232

Product: LINK-PP LS-BL31551G-10C 1G SFP BiDi 1310nm-TX/1550nm-RX 10km Simplex LC DOM SMF Optical Transceiver Module
SKU: 181232
P/N: LS-BL31551G-10C
Price: $ 6.8
Stock: 590 in Stock
Sold: 810
Product URL: https://www.l-p.com/products/476195.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

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Manufacture: LINK-PP

P/N: LS-BL31551G-10C

Compatible:: Cisco; LINK-PP; Alcatel-Lucent; Broadcom; Brocade; D-Link; DELL; Extreme; FS; Fortinet; Generic; H3C; HPE; HW; Juniper; Netgear; TRENDnet

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-10C 1G SFP Specifications

The LINK-PP LS-BL31551G-10C is a high-performance 1G SFP BiDi transceiver designed for reliable gigabit networking. Operating over a single-mode fiber with a 10km reach, this commercial-grade optical module delivers highly efficient data communication, minimizing enterprise fiber infrastructure costs while ensuring seamless network uptime across various telecom applications.

LINK-PP Part Number	LS-BL31551G-10C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1310nm-TX/1550nm-RX	Max Cable Distance	10km
Connector	Simplex LC	Media	SMF
Receiver Sensitivity	FP	Receiver Type	PIN
TX Power	-9 to 0dBm	RX Power	-23 to -1dBm
Receiver Sensitivity	<-23dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: Will this 1G bidi SFP work with my old Cisco Catalyst switches without throwing unsupported transceiver errors? By R***n on 2026-04-09

A: Yes! This module is 100% MSA compliant and extensively tested for OEM compatibility. It is purely plug-and-play on Cisco Catalyst series and edge routers with no "unsupported transceiver" warnings. By admin on 2026-04-09
Q: Just to be sure, does this TX1310/RX1550 transceiver use multimode or single-mode fiber optic cabling? By R***n on 2026-01-30

A: It is designed strictly for Single-Mode Fiber (SMF) using a Simplex LC connector. Also, please remember you must pair it with a 1550nm-TX/1310nm-RX BiDi module on the opposite end for the link to negotiate successfully. By admin on 2026-01-30
Q: I'm buying for a datacenter refresh. Do you guys offer any discount for 100+ units of this 10km Simplex LC DOM module? By N***r on 2025-12-26

A: We absolutely support B2B mass procurement! For bulk orders over 100 pieces, the unit price drops automatically. You can also use our coupon codes at checkout or contact our live chat for a custom enterprise quote. By admin on 2025-12-26
Q: Is this optical module only for Gigabit Ethernet, or can it handle Fibre Channel for our SAN storage as well? By J***k on 2025-07-21

A: It supports both! The maximum data rate is 1.25Gbps, meaning it works flawlessly for Fast/Gigabit Ethernet protocols as well as 1G Gigabit Fibre Channel for your storage area networks. By admin on 2025-07-21

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L***l

Netherlands

Verified Purchase

5 .0

2026-05-23

Set up a dedicated point-to-point fiber run for an enterprise NAS. This 1G single-mode optical module handles max 1.25Gbps payload perfectly. OEM compatibility is impressive, saving thousands in our datacenter upgrade.

140 Helpful vote Comments

B***g

Macao

Verified Purchase

5 .0

2026-04-28

Paired this 1310nm-TX unit with a 1550nm-TX on the other end. Instant gigabit link! ⚡

250 Helpful vote Comments

M***s

Mexico

Verified Purchase

5 .0

2026-03-31

Working great in our campus fiber network rack.

85 Helpful vote Comments

J***r

Venezuela

Verified Purchase

5 .0

2026-03-03

1G SFP BiDi synced instantly with Juniper switch.

170 Helpful vote Comments

S***r

Denmark

Verified Purchase

4 .0

2026-02-08

FedEx delayed my Cisco compatible 1G SFP delivery, but the module itself is flawless.

132 Helpful vote Comments

J***z

Ukraine

Verified Purchase

5 .0

2026-02-06

Using this 1G SFP BiDi for rural cell tower backhaul over SMF. Reaches the 8km mark with zero packet drop. The simplex LC interface is robust and commercial temp handles indoor cabinets easily.

184 Helpful vote Comments

M***z

Poland

Verified Purchase

5 .0

2025-12-16

Great buy for large-scale IT procurement. We stress-tested this 10km Simplex LC DOM transceiver on Brocade and Extreme gear. The integrated FP transmitter and PIN receiver deliver a very stable gigabit link.

194 Helpful vote Comments

J***z

Germany

Verified Purchase

5 .0

2025-12-09

DOM function reads perfectly on my edge router.

210 Helpful vote Comments

J***n

Norway

Verified Purchase

5 .0

2025-10-13

The 0 to 70°C temp rating is fine for our indoor datacenter patch panels. ❄️

145 Helpful vote Comments

L***g

Germany

Verified Purchase

5 .0

2025-09-26

No issues linking these BiDi SFPs over 5km.

258 Helpful vote Comments

J***g

Panama

Verified Purchase

5 .0

2025-09-02

Single strand fiber saves so much space. 1G SFP BiDi is a total lifesaver.

98 Helpful vote Comments

A***s

Mexico

Verified Purchase

5 .0

2025-08-15

Solid 10km Simplex LC transceiver for EU networks.

67 Helpful vote Comments

D***n

Costa Rica

Verified Purchase

5 .0

2025-08-06

Fast Ethernet compatible and plug-and-play setup.

68 Helpful vote Comments

C***z

Sweden

Verified Purchase

5 .0

2025-04-25

Deployed 50 of these LINK-PP 1G BiDi 1310nm-TX/1550nm-RX modules across our campus optical network. They perfectly matched our existing single-mode fiber infrastructure. DDM monitoring via HPE switches is spot on!

257 Helpful vote Comments

D***s

Switzerland

Verified Purchase

5 .0

2025-04-16

Needed a reliable Cisco compatible 1G SFP for a UK site. Works right away.

78 Helpful vote Comments

R***s

Czech Republic

Verified Purchase

5 .0

2025-04-05

Replaced dead OEM transceivers in our server room with these MSA compliant SFPs!

64 Helpful vote Comments

J***s

Argentina

Verified Purchase

5 .0

2025-03-19

SFP DDM stats are super accurate, good buy.

103 Helpful vote Comments

E***s

Costa Rica

Verified Purchase

5 .0

2024-10-29

Perfect 1310nm-TX/1550nm-RX module for my home lab!

169 Helpful vote Comments

D***s

Portugal

Verified Purchase

5 .0

2024-10-12

Cheap 1G SMF module in Texas, works perfectly!

138 Helpful vote Comments

P***n

Ethiopia

Verified Purchase

5 .0

2024-10-11

Tested on D-Link and Netgear switches, this 1G bidi transceiver connects without OEM warnings.

94 Helpful vote Comments

L***a

United States

Verified Purchase

5 .0

2024-07-05

great product with good prices

88 Helpful vote Comments

R***n

Hong Kong

Verified Purchase

5 .0

2024-07-01

Items correct and Fast shipping.

47 Helpful vote Comments

N***z

Philippines

Verified Purchase

5 .0

2024-06-27

Great products and prices, incredibly Fast shipping and outstanding communication.

49 Helpful vote Comments

T***y

Palestinian Territory, Occupied

Verified Purchase

5 .0

2024-02-29

The staff was very helpful. I was very happy with my experience and will definitely use you again.

50 Helpful vote Comments

J***x

Maldives

Verified Purchase

5 .0

2024-02-04

Love the selection and price!

43 Helpful vote Comments

s***u

Brazil

Verified Purchase

5 .0

2023-11-07

Had exactly what i was looking for - shipped immediately - received exactly as advertised. This was my first experience buying Optical Transceiver Module online and i won't hesitate to buy from l-p.com again.

44 Helpful vote Comments

V***i

Japan

Verified Purchase

5 .0

2023-10-02

I love how affordable the products are!

45 Helpful vote Comments

D***r

United States

Verified Purchase

5 .0

2023-09-08

Product is exactly as described, and arrived very quickly. Supplier kept in touch and advised on status of order.

52 Helpful vote Comments

C***y

Mexico

Verified Purchase

5 .0

2023-07-01

Items easy to find with a good description.

29 Helpful vote Comments

F***i

Canada

Verified Purchase

5 .0

2023-04-20

Looks and feels sturdy. Doesn't seem to cause any loss of data transmission, although I didn't do any rigorous quantitative assessment. Just didn't feel any data transmission issues were occurring.

21 Helpful vote Comments

M***t

Norway

Verified Purchase

5 .0

2023-04-06

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

33 Helpful vote Comments

S***p

Poland

Verified Purchase

5 .0

2023-02-25

Simple, easy to use and store in my kit.

48 Helpful vote Comments

M***k

United States

Verified Purchase

5 .0

2023-02-08

This Optical Transceiver Modules was priced very competitively and worked exactly as intended. I am very happy with the transceiver and highly recommend it.

46 Helpful vote Comments

B***n

United States

Verified Purchase

5 .0

2023-02-01

I am very pleased with how easy it is to find everything I need on the site. It is Fast and works well with purchases through my PayPal account. Glad to see l-p.com is utilizing the latest payment methods.

72 Helpful vote Comments