Just to double-check before purchasing, does this transceiver require a simplex or duplex patch cable? And what connector type?

You will need a Simplex LC patch cable for this transceiver. It features a standard single LC interface engineered specifically for Single-Mode Fiber (SMF) connectivity.

Are these optical transceivers compliant with standard telecom industry protocols?

Yes, they strictly comply with IEEE 802.3z Gigabit Ethernet and 1G Fibre Channel standards. Furthermore, they are MSA compliant and adhere to Class 1 laser safety requirements, ensuring safe and standardized network integration.

We're planning a massive data center upgrade and need about 500 units. Are there any bulk pricing discounts?

Definitely. We offer scaled pricing for volume deployments. For orders of 500 units, the price per module drops significantly compared to the standard retail rate. Please contact our enterprise sales team directly for a customized quote.

Hey, will this LS-BL49311G-40C sync up with a mix of Cisco Catalyst and Juniper switches in our network?

Yes, absolutely! This 1G BiDi SFP is fully MSA compliant and heavily tested for multi-brand interoperability, including Cisco, Juniper, Dell, and HPE. It’s plug-and-play for your mixed-switch environment with zero vendor lock-in issues.

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LINK-PP LS-BL49311G-40C 1G SFP BiDi 1490nm-TX/1310nm-RX 40km Simplex LC DDM SMF Optical Transceiver Module

Name: LINK-PP LS-BL49311G-40C 1G SFP BiDi 1490nm-TX/1310nm-RX 40km Simplex LC DDM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 181501
Price: 14.448 USD
Availability: InStock
Rating: 5 (38 reviews)

# 181501

Product: LINK-PP LS-BL49311G-40C 1G SFP BiDi 1490nm-TX/1310nm-RX 40km Simplex LC DDM SMF Optical Transceiver Module
SKU: 181501
P/N: LS-BL49311G-40C
Price: $ 16.8
Stock: 1090 in Stock
Sold: 920
Product URL: https://www.l-p.com/products/476679.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

38 Reviews

4 Questions

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$ 15.96

1000

$ 15.456

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$ 14.952

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$ 14.448

Manufacture: LINK-PP

P/N: LS-BL49311G-40C

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

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-BL49311G-40C 1G BiDi SFP Specifications

The LINK-PP LS-BL49311G-40C is a high-performance 1G BiDi SFP optical module designed for Gigabit Ethernet and Fibre Channel applications. It features a 1.25Gbps data rate, 1490nm-TX/1310nm-RX wavelengths, and operates over single-mode fiber up to 40km. Equipped with a simplex LC interface and DDM capabilities, this commercial-grade fiber optic transceiver ensures robust and reliable network connectivity.

LINK-PP Part Number	LS-BL49311G-40C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1490nm-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	<-23dBm	DDM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

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Q: Just to double-check before purchasing, does this transceiver require a simplex or duplex patch cable? And what connector type? By M***t on 2025-11-09

A: You will need a Simplex LC patch cable for this transceiver. It features a standard single LC interface engineered specifically for Single-Mode Fiber (SMF) connectivity. By admin on 2025-11-09
Q: Are these optical transceivers compliant with standard telecom industry protocols? By J***a on 2025-10-25

A: Yes, they strictly comply with IEEE 802.3z Gigabit Ethernet and 1G Fibre Channel standards. Furthermore, they are MSA compliant and adhere to Class 1 laser safety requirements, ensuring safe and standardized network integration. By admin on 2025-10-25
Q: We're planning a massive data center upgrade and need about 500 units. Are there any bulk pricing discounts? By M***r on 2025-08-20

A: Definitely. We offer scaled pricing for volume deployments. For orders of 500 units, the price per module drops significantly compared to the standard retail rate. Please contact our enterprise sales team directly for a customized quote. By admin on 2025-08-20
Q: Hey, will this LS-BL49311G-40C sync up with a mix of Cisco Catalyst and Juniper switches in our network? By J***n on 2025-04-01

A: Yes, absolutely! This 1G BiDi SFP is fully MSA compliant and heavily tested for multi-brand interoperability, including Cisco, Juniper, Dell, and HPE. It’s plug-and-play for your mixed-switch environment with zero vendor lock-in issues. By admin on 2025-04-01

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L***z

Italy

Verified Purchase

5 .0

2026-06-21

Deployed 50 of these LS-BL49311G-40C transceivers for a campus fiber network update. The DDM features are spot on for monitoring, and they synced instantly with our mixed Cisco and Juniper switches.

85 Helpful vote Comments

B***l

Thailand

Verified Purchase

5 .0

2026-06-19

The 1490nm-TX/1310nm-RX pairs fired right up in our Netgear campus setup. Highly recommended! ✨

192 Helpful vote Comments

B***z

Hong Kong

Verified Purchase

5 .0

2026-06-17

Simplex LC connected perfectly, no hassle.

47 Helpful vote Comments

D***r

Russian Federation

Verified Purchase

5 .0

2026-06-14

Best long-distance SFP 40km for the money.

126 Helpful vote Comments

N***e

Philippines

Verified Purchase

5 .0

2026-06-09

Reliably handles 0-70°C data center temps.

114 Helpful vote Comments

P***n

Czech Republic

Verified Purchase

5 .0

2026-06-05

Easy plug-and-play for our H3C gear. ⚙️

191 Helpful vote Comments

B***g

United Arab Emirates

Verified Purchase

5 .0

2026-05-30

Used these 1G BiDi SFPs to bridge our data center network cabinets. MSA compliance is solid; no weird errors on Dell or HPE gear. The 1310nm-RX sensitivity is exceptionally reliable!

203 Helpful vote Comments

B***n

Israel

Verified Purchase

5 .0

2026-05-29

Works flawlessly with my Brocade switches! (⌐■_■)

153 Helpful vote Comments

J***r

Mexico

Verified Purchase

5 .0

2026-05-27

Stable 1.25Gbps link, DDM is super helpful.

219 Helpful vote Comments

A***g

Dominican Republic

Verified Purchase

5 .0

2026-05-05

Tested this simplex LC SMF module for a base station backhaul link spanning 35km. Tx/Rx power levels held perfectly steady within the 0 to 70°C temp range. Great ROI overall!

220 Helpful vote Comments

T***n

Singapore

Verified Purchase

5 .0

2026-04-25

Fantastic 1G BiDi SFP, great OEM compatibility!

136 Helpful vote Comments

J***n

Ukraine

Verified Purchase

5 .0

2026-04-09

These optical transceivers provide incredible value for bulk data center deployments. Zero dead units.

120 Helpful vote Comments

B***k

Brazil

Verified Purchase

5 .0

2026-04-07

Installed these for a home 10G NAS downgrade to 1G remote backup. Flawless!

222 Helpful vote Comments

A***n

Belgium

Verified Purchase

5 .0

2026-03-21

Solid Cisco compatible 1G SFP. Linked at 1.25Gbps over 30km SMF without issues.

37 Helpful vote Comments

C***z

Dominican Republic

Verified Purchase

5 .0

2026-03-12

Upgraded our Fortinet firewalls with this 1G SFP BiDi module. Outstanding compatibility overall!

59 Helpful vote Comments

S***l

Austria

Verified Purchase

5 .0

2026-01-12

Flawless Gigabit Fibre Channel performance. ^_^

121 Helpful vote Comments

R***l

Peru

Verified Purchase

5 .0

2026-01-04

Rock-solid Gigabit Ethernet SFP. The DFB laser handles our 40km rural links effortlessly.

82 Helpful vote Comments

C***a

Sweden

Verified Purchase

5 .0

2026-01-01

Perfect LS-BL49311G-40C modules for SMF runs.

123 Helpful vote Comments

K***z

Chile

Verified Purchase

4 .0

2025-12-04

Shipping took an extra day, otherwise these BiDi modules perform flawlessly.

124 Helpful vote Comments

E***r

Ecuador

Verified Purchase

5 .0

2025-11-26

Exactly what we needed for our enterprise 1G fiber backbone. DDM reads accurately.

95 Helpful vote Comments

C***n

Costa Rica

Verified Purchase

5 .0

2025-11-07

We needed reliable 40km fiber runs for an outdoor cabinet project. While this is commercial temp, it survived our stress tests. Outstanding Gigabit Fibre Channel performance for mass deployment.

45 Helpful vote Comments

M***k

New Zealand

Verified Purchase

5 .0

2024-03-17

Quick and easy purchase process here the first time. Search and information on products was good.Will use it again when I need them.

12 Helpful vote Comments

H***n

Bulgaria

Verified Purchase

5 .0

2024-03-10

l-p.com is a delight to do business with. Contact them with any concerns and they will assist us to our satisfaction.

81 Helpful vote Comments

M***n

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2024-02-15

I purchased these 10/25/40G Transceiver Modules and Lan Transformer because they were less expensive than I found in other places, and order came Fast and quick. Thank You

70 Helpful vote Comments

E***n

Malaysia

Verified Purchase

5 .0

2024-01-08

It is very early going, but they seem to work flawlessly with Dell switches.

18 Helpful vote Comments

J***s

South Africa

Verified Purchase

5 .0

2023-12-19

This is a great product for the price.

85 Helpful vote Comments

O***i

Ukraine

Verified Purchase

5 .0

2023-11-19

I have used the Chat process with other companies. I can't say enough good things about LINK-PP and their interactions with customers! Simply one of the best I have encountered!! A company with great service!

34 Helpful vote Comments

M***u

Spain

Verified Purchase

5 .0

2023-11-16

The service is great. The staff at l-p.com went out of her way to make sure I was happy with my order, and I selected the right 100BASE-BX Sfp Cage module. I will buy the fiber products from here for future.

57 Helpful vote Comments

S***o

Taiwan, Province of China

Verified Purchase

5 .0

2023-08-13

They do a great job. Customer service is very responsive. All of the 10/25/40G Transceiver Modules and Lan Transformer are tested.

19 Helpful vote Comments

L***s

Norway

Verified Purchase

5 .0

2023-07-31

Product was sent extremely Fast.

63 Helpful vote Comments

J***d

Poland

Verified Purchase

5 .0

2023-07-22

Good-quality products at reasonable prices. Fabulous!

39 Helpful vote Comments

E***n

United States

Verified Purchase

5 .0

2023-06-27

I have never had a problem and most of the time with the expedited shipping products arrive promptly even though they have to travel all the way across the country.

25 Helpful vote Comments

C***n

Malaysia

Verified Purchase

5 .0

2023-05-09

They Sfp Cage worked without any problem. Will definitely recommend.

69 Helpful vote Comments

R***D

Norway

Verified Purchase

5 .0