This module operates at 0 to 70°C, but we need optics for outdoor cabinets in harsh winters. Do you have an industrial wide-temperature version of this 40km BiDi SFP?

Yes, we do! For extreme environments, we manufacture an industrial-grade version (model LS-BL55311G-40I) which operates flawlessly in temperatures ranging from -40°C to 85°C. It is perfectly suited for cell tower backhaul and unconditioned outdoor enclosures.

We run a mixed environment with Cisco Catalyst and Juniper EX series switches. Will this LS-BL55311G-40C module require any special CLI commands to bypass vendor lock-in?

No special CLI commands are needed. This 1G BiDi SFP is strictly MSA compliant and rigorously tested for seamless interoperability across major network equipment brands, including Cisco and Juniper, providing a true plug-and-play experience.

I want to upgrade our legacy network. Can I use OM3 multimode fiber with this specific 1G optic, or is it strictly for single-mode fiber?

This LS-BL55311G-40C module is designed specifically for Single Mode Fiber (SMF) to reliably achieve the 40km transmission distance. Using multimode fiber like OM3 is not recommended, as it will cause severe modal dispersion and drastically reduce your link distance.

I'm planning a data center mass deployment and need about 1K units. Do you offer any tiered discounts for bulk purchasing on these 40km SMF optics?

Absolutely! We offer highly competitive tiered pricing for bulk B2B procurement. For an order of 1K units, our per-unit cost drops significantly compared to the standard retail price. Please contact our sales team directly to lock in your discount.

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Generic SFP-1G53-BX40 Compatible LINK-PP 1G SFP BiDi 1550nm-TX/1310nm-RX 40km Simplex LC DOM SMF Optical Transceiver Module

Name: Generic SFP-1G53-BX40 Compatible LINK-PP 1G SFP BiDi 1550nm-TX/1310nm-RX 40km Simplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 217225
Price: 7.31 USD
Availability: InStock
Rating: 4.9 (27 reviews)

# 217225

Product: Generic SFP-1G53-BX40 Compatible LINK-PP 1G SFP BiDi 1550nm-TX/1310nm-RX 40km Simplex LC DOM SMF Optical Transceiver Module
SKU: 217225
P/N: LS-BL55311G-40C
Price: $ 8.5
Stock: 1409 in Stock
Sold: 2K
Product URL: https://www.l-p.com/products/494162.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

27 Reviews

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$ 8.075

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$ 7.82

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$ 7.565

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Manufacture: LINK-PP

P/N: LS-BL55311G-40C

Compatible:: Cisco; LINK-PP; Brocade; D-Link; FS; Generic; H3C; Juniper; Netgear; TRENDnet

Compatible P/N:: SFP-1G34-BX10 | 10km; SFP-1G35-BX10 | 10km; SFP-1G43-BX10 | 10km; SFP-1G53-BX10 | 10km; SFP-GE-BX | 10km; SFP-1G34-BX20 | 20km; SFP-1G35-BX20 | 20km; SFP-1G43-BX20 | 20km; SFP-1G53-BX20 | 20km; SFP-GE-BX | 20km; SFP-1G34-BX40 | 40km; SFP-1G35-BX40 | 40km; SFP-1G43-BX40 | 40km; SFP-1G53-BX40 | 40km; SFP-GE-BX40 | 40km; SFP-1G45-BX80 | 80km; SFP-1G54-BX80 | 80km; SFP-GE-BX80 | 80km; SFP-1G45-BX120 | 120km; SFP-1G54-BX120 | 120km; SFP-GE-BX120 | 120km; SFP-1G45-BX160 | 160km; SFP-1G45-BX160-I | 160km; SFP-1G54-BX160 | 160km; SFP-1G54-BX160-I | 160km

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Generic SFP-1G53-BX40 Compatible LINK-PP 1G BiDi SFP Specifications

The Generic SFP-1G53-BX40 Compatible LINK-PP module is a high-performance 1G BiDi SFP optical transceiver designed for robust Gigabit Ethernet links. Operating on a simplex LC fiber interface, this single-mode module utilizes 1550nm-TX and 1310nm-RX wavelengths to achieve reliable data transmission up to 40km. It strictly complies with SFP MSA standard specifications.

Generic Part Number	SFP-1G53-BX40	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1550nm-TX/1310nm-RX	Max Cable Distance	40km
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	0 to 70°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: This module operates at 0 to 70°C, but we need optics for outdoor cabinets in harsh winters. Do you have an industrial wide-temperature version of this 40km BiDi SFP? By L***n on 2026-02-23

A: Yes, we do! For extreme environments, we manufacture an industrial-grade version (model LS-BL55311G-40I) which operates flawlessly in temperatures ranging from -40°C to 85°C. It is perfectly suited for cell tower backhaul and unconditioned outdoor enclosures. By admin on 2026-02-23
Q: We run a mixed environment with Cisco Catalyst and Juniper EX series switches. Will this LS-BL55311G-40C module require any special CLI commands to bypass vendor lock-in? By D***n on 2025-10-09

A: No special CLI commands are needed. This 1G BiDi SFP is strictly MSA compliant and rigorously tested for seamless interoperability across major network equipment brands, including Cisco and Juniper, providing a true plug-and-play experience. By admin on 2025-10-09
Q: I want to upgrade our legacy network. Can I use OM3 multimode fiber with this specific 1G optic, or is it strictly for single-mode fiber? By R***s on 2025-08-04

A: This LS-BL55311G-40C module is designed specifically for Single Mode Fiber (SMF) to reliably achieve the 40km transmission distance. Using multimode fiber like OM3 is not recommended, as it will cause severe modal dispersion and drastically reduce your link distance. By admin on 2025-08-04
Q: I'm planning a data center mass deployment and need about 1K units. Do you offer any tiered discounts for bulk purchasing on these 40km SMF optics? By S***z on 2025-02-05

A: Absolutely! We offer highly competitive tiered pricing for bulk B2B procurement. For an order of 1K units, our per-unit cost drops significantly compared to the standard retail price. Please contact our sales team directly to lock in your discount. By admin on 2025-02-06

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S***s

Venezuela

Verified Purchase

5 .0

2026-05-29

Great budget SMF module for NAS.

84 Helpful vote Comments

W***a

Germany

Verified Purchase

5 .0

2026-03-18

Perfect 40km transmission distance on SMF. Excellent optical transceiver for our enterprise access.

122 Helpful vote Comments

M***e

Switzerland

Verified Purchase

4 .0

2026-03-01

Arrived a day late but the 1G BiDi module works flawlessly on Cisco.

48 Helpful vote Comments

D***l

United Kingdom

Verified Purchase

5 .0

2026-02-22

Plug and play gigabit fiber module! ⚡

124 Helpful vote Comments

A***s

France

Verified Purchase

5 .0

2026-01-20

Exactly as described. Great 1550nm/1310nm optic!

28 Helpful vote Comments

J***g

Hong Kong

Verified Purchase

5 .0

2025-12-18

Reliable 1.25Gbps data rate. Exactly what our machine room needed for cross-connects!

191 Helpful vote Comments

M***e

Bolivia

Verified Purchase

5 .0

2025-12-18

We needed reliable cell tower backhaul using 1550nm-TX/1310nm-RX wavelengths. These 1G Bidi SFP modules run cool at 45°C in outdoor cabinets. TX power sits perfectly around -3dBm. Zero packet loss!

202 Helpful vote Comments

J***e

Japan

Verified Purchase

5 .0

2025-12-02

Perfect for our server room upgrade.

61 Helpful vote Comments

C***s

Spain

Verified Purchase

5 .0

2025-10-12

Upgraded my home 10G NAS gateway using this 1G fallback optic for distant ISP lines. DOM function is super handy for monitoring receiver sensitivity. Works right out of the box!

183 Helpful vote Comments

B***l

Germany

Verified Purchase

5 .0

2025-10-06

Solid 40km distance, no dropped packets.

165 Helpful vote Comments

P***n

Colombia

Verified Purchase

5 .0

2025-08-11

Deployed a batch for our campus fiber networking. DDM readings are incredibly stable over 35km SMF links. Seamless compatibility with our mixed Juniper and H3C switches. Highly recommend these 1.25G optics!

37 Helpful vote Comments

A***n

Netherlands

Verified Purchase

5 .0

2025-08-07

Flawless OEM compatibility! Plugged this 1550nm/1310nm module into our D-Link switch instantly.

41 Helpful vote Comments

J***n

Spain

Verified Purchase

5 .0