Is this 1310nm-TX/1550nm-RX module fully MSA compliant and does it support standard Gigabit Fibre Channel?

Yes. It is fully MSA (Multi-Source Agreement) compliant, ensuring universal form factor and signaling alignment. It also natively supports both Fast Ethernet and Gigabit Fibre Channel protocols for heavily regulated network environments.

Just to clarify for my installation crew, does this module take multimode or single-mode fiber, and what connector type is required?

This transceiver is designed exclusively for Single-Mode Fiber (SMF). Your field crew will need to use fiber patch cables with a Simplex LC connector to link up properly.

We run a mixed environment with Cisco Catalyst and Juniper EX series switches. Will this 1G BiDi SFP 40km module interoperate without throwing "unsupported transceiver" errors?

Yes, absolutely. The LS-BL31551G-40C features widespread OEM compatibility and is heavily tested for multi-brand interoperability. It will sync natively with both Cisco and Juniper switches right out of the box.

Our data center needs to batch deploy around 500 units for a massive campus networking upgrade. Do you offer volume discounts for enterprise procurement?

We definitely do. For bulk orders of 500 units or more, our tier-based pricing kicks in, reducing the unit cost significantly. Please reach out to our B2B sales team to get a formalized quote with the exact discount applied.

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FS SFP-1G35-BX40 Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 40km Simplex LC DOM SMF Optical Transceiver Module

Name: FS SFP-1G35-BX40 Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 40km Simplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 215385
Price: 7.31 USD
Availability: InStock
Rating: 5 (22 reviews)

# 215385

Product: FS SFP-1G35-BX40 Compatible LINK-PP 1G SFP BiDi 1310nm-TX/1550nm-RX 40km Simplex LC DOM SMF Optical Transceiver Module
SKU: 215385
P/N: LS-BL31551G-40C
Price: $ 8.5
Stock: 1161 in Stock
Sold: 3K
Product URL: https://www.l-p.com/products/495200.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

22 Reviews

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$ 8.075

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$ 7.82

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Manufacture: LINK-PP

P/N: LS-BL31551G-40C

Compatible:: Cisco; LINK-PP; Brocade; D-Link; FS; Fortinet; 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-1G34-BX20 | 20km; SFP-1G35-BX20 | 20km; SFP-1G43-BX20 | 20km; SFP-1G53-BX20 | 20km; SFP-1G34-BX40 | 40km; SFP-1G35-BX40 | 40km; SFP-1G43-BX40 | 40km; SFP-1G53-BX40 | 40km; SFP-1G45-BX80 | 80km; SFP-1G54-BX80 | 80km; SFP-1G45-BX120 | 120km; SFP-1G54-BX120 | 120km; SFP-1G45-BX160 | 160km; SFP-1G45-BX160-I | 160km; SFP-1G54-BX160 | 160km; SFP-1G54-BX160-I | 160km

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FS SFP-1G35-BX40 Compatible LINK-PP 1G BiDi SFP Specifications

The FS SFP-1G35-BX40 Compatible LINK-PP 1G BiDi SFP transceivers provide highly reliable Gigabit Ethernet data links over extended single-mode fiber infrastructure. Designed for high-performance optical networks, this commercial-grade SFP transceiver delivers stable 1.25Gbps bi-directional throughput over a single fiber core. It serves as an ideal solution for telecom, enterprise, and service provider network deployments worldwide.

FS Part Number	SFP-1G35-BX40	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1310nm-TX/1550nm-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: Is this 1310nm-TX/1550nm-RX module fully MSA compliant and does it support standard Gigabit Fibre Channel? By J***e on 2026-04-03

A: Yes. It is fully MSA (Multi-Source Agreement) compliant, ensuring universal form factor and signaling alignment. It also natively supports both Fast Ethernet and Gigabit Fibre Channel protocols for heavily regulated network environments. By admin on 2026-04-03
Q: Just to clarify for my installation crew, does this module take multimode or single-mode fiber, and what connector type is required? By D***z on 2026-03-01

A: This transceiver is designed exclusively for Single-Mode Fiber (SMF). Your field crew will need to use fiber patch cables with a Simplex LC connector to link up properly. By admin on 2026-03-01
Q: We run a mixed environment with Cisco Catalyst and Juniper EX series switches. Will this 1G BiDi SFP 40km module interoperate without throwing "unsupported transceiver" errors? By D***n on 2025-12-25

A: Yes, absolutely. The LS-BL31551G-40C features widespread OEM compatibility and is heavily tested for multi-brand interoperability. It will sync natively with both Cisco and Juniper switches right out of the box. By admin on 2025-12-25
Q: Our data center needs to batch deploy around 500 units for a massive campus networking upgrade. Do you offer volume discounts for enterprise procurement? By A***n on 2025-10-29

A: We definitely do. For bulk orders of 500 units or more, our tier-based pricing kicks in, reducing the unit cost significantly. Please reach out to our B2B sales team to get a formalized quote with the exact discount applied. By admin on 2025-10-29

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S***s

Switzerland

Verified Purchase

5 .0

2026-06-29

Upgraded our park's fiber setup. The simplex LC interface saves so much cabling space.

170 Helpful vote Comments

A***n

Spain

Verified Purchase

5 .0

2026-05-20

Procured these 1310nm-TX/1550nm-RX modules for our enterprise machine room batch deployment. Pushing Gigabit Ethernet over 35km SMF, the DFB transmitter barely breaks a sweat. Unbeatable value for B2B network ops.

44 Helpful vote Comments

R***n

Brazil

Verified Purchase

5 .0

2026-05-19

Best value for bulk 1G SFP purchases!

127 Helpful vote Comments

A***s

Philippines

Verified Purchase

5 .0

2026-05-02

The 1310nm-TX/1550nm-RX module pairs seamlessly with our existing Brocade and Netgear enterprise switches.

60 Helpful vote Comments

N***n

Chile

Verified Purchase

5 .0

2026-04-20

Awesome link for my home 10G NAS.

61 Helpful vote Comments

M***s

Israel

Verified Purchase

4 .0

2026-03-16

Delivery was delayed a day, but the 1G BiDi SFP 40km modules run perfectly.

86 Helpful vote Comments

L***t

Russian Federation

Verified Purchase

5 .0

2026-03-07

Running these DOM SMF transceivers in our data center bulk deployment. Super cost-effective.

138 Helpful vote Comments

M***s

Czech Republic

Verified Purchase

5 .0

2026-02-27

Perfect simplex LC transceiver for campus networking!

190 Helpful vote Comments

M***s

Japan

Verified Purchase

5 .0

2026-02-20

Connected my home 10G NAS perfectly using this Gigabit Fibre Channel optic.

139 Helpful vote Comments

J***n

Chile

Verified Purchase

5 .0

2026-02-08

Hooked this 1G BiDi SFP 40km to our Fortinet gear. Synced instantly without errors!

171 Helpful vote Comments

A***k

Panama

Verified Purchase

5 .0

2025-12-13

Installed in an unconditioned outdoor cabinet. Operating temp holds up fine for commercial grade. ☀️

143 Helpful vote Comments

E***n

United States

Verified Purchase

5 .0

2025-11-22

Needed MSA compliant 40km optics for a base station backhaul link. These worked perfectly.

97 Helpful vote Comments

P***n

Philippines

Verified Purchase

5 .0

2024-03-25

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!!!

56 Helpful vote Comments

R***e

United States

Verified Purchase

5 .0

2024-03-22

Product was as advertised ... communication regarding shipment and delivery was excellent.

55 Helpful vote Comments

M***d

Turkey

Verified Purchase

5 .0

2024-03-14

Best prices easy ordering Fast shipping what else could you possibly ask for

60 Helpful vote Comments

R***u

Canada

Verified Purchase

5 .0

2024-01-26

Engineering said that it worked great.

58 Helpful vote Comments

S***i

Hong Kong

Verified Purchase

5 .0

2023-12-26

Everything was packaged correctly.

59 Helpful vote Comments

O***s

United States

Verified Purchase

5 .0

2023-10-17

l-p.com consistently has competitive prices on top of the line fiber optical components with great customer service and Fast shipping. It's a very trustworthy company to do business with.

63 Helpful vote Comments

M***e

Hong Kong

Verified Purchase

5 .0

2023-08-25

Flawless and affordable!

51 Helpful vote Comments

W***n

Japan

Verified Purchase

5 .0

2023-06-21

Arrived as advertised, installed it and away we went.

67 Helpful vote Comments

M***n

India

Verified Purchase

5 .0

2023-04-29

Without the help of Yoeng, I would not have purchased such great items without seeing them in person. She helped me make the right product choices and provided instruction that answered all of my questions, which really helps me a lot.You can rely on LINK-PP!

82 Helpful vote Comments

B***r

United States

Verified Purchase

5 .0

2023-04-22

The items came right away and they were well packaged.

86 Helpful vote Comments