How does this industrial optical transceiver compare in performance and longevity against original optics?

It delivers 100% identical optical and electrical performance—featuring a high-reliability FP 1310nm transmitter and high-sensitivity PIN 1490nm receiver supporting up to 1.25Gbps over 10km. You get the same low latency, low bit-error rate (BER), and standard SFF-8472 digital diagnostics as first-party optics at an 80%+ hardware cost savings, backed by our 5-year warranty.

Does this transceiver comply with international telecommunication standards, laser safety, and environmental regulations?

Yes, the module meets all global regulatory standards. It is fully compliant with IEEE 802.3ah 1000BASE-BX, SFP MSA, FDA/CDRH Class 1 Laser Safety, FCC Part 15 Class B, CE Mark, and RoHS/REACH environmental directives, ensuring seamless qualification for government, utility, and telecom-grade RFP requirements.

What fiber patch cable and matching transceiver model are required to complete the bidirectional optical link?

This module features a Simplex LC optical connector and requires single-strand OS1/OS2 9/125μm Single-Mode Fiber (SMF). Because it transmits at 1310nm and receives at 1490nm (1310nm-TX / 1490nm-RX), the remote end of your fiber link must be equipped with the complementary 1490nm-TX / 1310nm-RX industrial BiDi module (e.g., LINK-PP LS-BL49311G-10I) to successfully establish communication.

Will this 1G BiDi SFP transceiver work seamlessly with our Cisco Catalyst and MikroTik industrial switches without throwing unsupported transceiver alarms?

Yes. The LS-BL31491G-10I is built strictly to the SFF-8472 SFP Multi-Source Agreement (MSA) and can be custom-coded for major OEM brands including Cisco, MikroTik, Ubiquiti, Juniper, Fortinet, Aruba, and Dell. It provides complete plug-and-play interoperability, instant link up, and full DDM/DOM diagnostic recognition with zero vendor-lock warnings.

Breadcrumb: Home; Products; Optics Transceivers | SFP Modules; 1/2/4G Transceiver Modules; 1G BiDi SFP; 205768

Click to open expanded view

LINK-PP LS-BL31491G-10I 1G SFP BiDi 1310nm-TX/1490nm-RX 10km DOM Simplex LC SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-BL31491G-10I 1G SFP BiDi 1310nm-TX/1490nm-RX 10km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 205768
Price: 13.33 USD
Availability: InStock
Rating: 5 (24 reviews)

# 205768

Product: LINK-PP LS-BL31491G-10I 1G SFP BiDi 1310nm-TX/1490nm-RX 10km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
SKU: 205768
P/N: LS-BL31491G-10I
Price: $ 15.5
Stock: 580 in Stock
Sold: 1.2K
Product URL: https://www.l-p.com/products/494077.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

24 Reviews

4 Questions

Request Stock

1.2K Sold

$ 15.5

Free shipping over $600, If you need a more favorable price, please contact us directly.

Qty (pcs) :

Unit Price :

$ 15.5

100

$ 14.725

1000

$ 14.26

3000

$ 13.795

6000

$ 13.33

Manufacture: LINK-PP

P/N: LS-BL31491G-10I

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

Shipping:

To Be Negotiated

Free Shipping

Can't deliver

to United States via {{now_chooseship?now_chooseship.name:''}}

Estimated delivery time : {{now_chooseship?now_chooseship.datemin:''}}-{{now_chooseship?now_chooseship.datemax:''}} days. See details

5-Year Warranty 30-Day Returns 30-Day Exchange

Stock:

{{parseInt(detail_data.left_num) ? detail_data.left_num +' in Stock' :detail_data.zeroStockOrder==0?'Out of Stock':'Available'}} .

Quantity:

( Min. Order {{detail_data.prodInfo.minimum_ordered_quantity}} )

undeliverable

Total Price:

{{ detail_data.displayed_price.unit_prefix }} {{ detail_data.displayed_price.original_total_price }} ( {{ detail_data.displayed_price.rate_of_discount }}% OFF ) {{detail_data.displayed_price.ex_sell_type}}

Add to wish

Specifications

Specification
Videos
Matching Products
Download
Q&A
Customer Reviews

LINK-PP LS-BL31491G-10I 1G BiDi SFP Specifications

The LINK-PP LS-BL31491G-10I is an industrial-grade 1G BiDi SFP transceiver engineered for rugged environments. It delivers up to 1.25Gbps data rates over single-mode fiber. Operating seamlessly between -40°C and +85°C, this high-performance optical module ensures reliable bidirectional transmission, making it an ideal choice for advanced telecommunications and robust networking applications.

LINK-PP Part Number	LS-BL31491G-10I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1310nm-TX/1490nm-RX	Max Cable Distance	10km
Connector	Simplex LC	Media	SMF
Transmitter Type	FP	Receiver Type	PIN
TX Power	-9 to 0dBm	RX Power	-23 to -1dBm
Receiver Sensitivity	<-23dBm	DOM Support	Yes
Operating Temperature Range	-40 to 85°C	Protocols	Fast Ethernet, Gigabit Fibre Channel, MSA Compliant

Videos

Matching Products

Pictures

ID#

Description

Price

Stock

Add to Cart

Download

Product Drawing

PDF
LS-BL31491G-10I.pdf

Questions & Answers
Ask a Question

No data

Q: How does this industrial optical transceiver compare in performance and longevity against original optics? By D***r on 2026-06-09

A: It delivers 100% identical optical and electrical performance—featuring a high-reliability FP 1310nm transmitter and high-sensitivity PIN 1490nm receiver supporting up to 1.25Gbps over 10km. You get the same low latency, low bit-error rate (BER), and standard SFF-8472 digital diagnostics as first-party optics at an 80%+ hardware cost savings, backed by our 5-year warranty. By admin on 2026-06-09
Q: Does this transceiver comply with international telecommunication standards, laser safety, and environmental regulations? By L***s on 2026-06-07

A: Yes, the module meets all global regulatory standards. It is fully compliant with IEEE 802.3ah 1000BASE-BX, SFP MSA, FDA/CDRH Class 1 Laser Safety, FCC Part 15 Class B, CE Mark, and RoHS/REACH environmental directives, ensuring seamless qualification for government, utility, and telecom-grade RFP requirements. By admin on 2026-06-07
Q: What fiber patch cable and matching transceiver model are required to complete the bidirectional optical link? By C***s on 2026-05-02

A: This module features a Simplex LC optical connector and requires single-strand OS1/OS2 9/125μm Single-Mode Fiber (SMF). Because it transmits at 1310nm and receives at 1490nm (1310nm-TX / 1490nm-RX), the remote end of your fiber link must be equipped with the complementary 1490nm-TX / 1310nm-RX industrial BiDi module (e.g., LINK-PP LS-BL49311G-10I) to successfully establish communication. By admin on 2026-05-02
Q: Will this 1G BiDi SFP transceiver work seamlessly with our Cisco Catalyst and MikroTik industrial switches without throwing unsupported transceiver alarms? By D***a on 2026-03-05

A: Yes. The LS-BL31491G-10I is built strictly to the SFF-8472 SFP Multi-Source Agreement (MSA) and can be custom-coded for major OEM brands including Cisco, MikroTik, Ubiquiti, Juniper, Fortinet, Aruba, and Dell. It provides complete plug-and-play interoperability, instant link up, and full DDM/DOM diagnostic recognition with zero vendor-lock warnings. By admin on 2026-03-06

Customer Reviews
Write a Review

{{stardata.star}}

{{comment.count}} reviews
5 Stars

{{comment.star5}}%

4 Stars

{{comment.star4}}%

3 Stars

{{comment.star3}}%

2 Stars

{{comment.star2}}%

1 Star

{{comment.star1}}%

All Reviews ({{comment.star_num?comment.star_num:comment.count}})

All Reviews

5 stars only

4 stars only

3 stars only

2 stars only

1 star only
Reviews with Pictures ( {{comment.pic_comment}} )
See All Reviews

No data

D***s

Austria

Verified Purchase

5 .0

2026-07-09

Zero packet drop across 8km run!

48 Helpful vote Comments

M***n

Ecuador

Verified Purchase

5 .0

2026-06-15

Running cold at -20°C in outdoor box. ❄️

42 Helpful vote Comments

C***z

Dominican Republic

Verified Purchase

4 .0

2026-06-13

Great BiDi optic, but the outer packaging arrived slightly crushed during shipping.

9 Helpful vote Comments

E***g

Austria

Verified Purchase

5 .0

2026-06-06

Reliable 1G FP laser output, clean eye diagram, zero CRC errors after 30 days.

190 Helpful vote Comments

L***r

Dominican Republic

Verified Purchase

5 .0

2026-05-14

Rock-solid 10km link on single fiber!

191 Helpful vote Comments

M***n

Argentina

Verified Purchase

5 .0

2026-05-06

Deployed 30 units across roadside surveillance cabinets; heat tolerance up to 65°C is real.

119 Helpful vote Comments

S***h

Spain

Verified Purchase

5 .0

2026-05-02

Plug and play simplex LC module. (^_^)

203 Helpful vote Comments

M***n

Republic of Korea

Verified Purchase

5 .0

2026-03-16

Installed in outdoor traffic control cabinets where summer ambient temperatures exceed 50°C. Interoperability with both Cisco Industrial Ethernet and FS switches is 100% stable with clean 1.25Gbps throughput and no packet degradation.

105 Helpful vote Comments

B***n

Thailand

Verified Purchase

5 .0

2026-02-22

Accurate DDM power readings on EdgeSwitch.

131 Helpful vote Comments

K***s

Peru

Verified Purchase

5 .0

2026-02-21

Flawless industrial BiDi SFP for outdoor cams.

102 Helpful vote Comments

D***r

Brazil

Verified Purchase

5 .0

2026-01-24

Upgraded our enterprise campus distribution switches using these 1310TX/1490RX BiDi optics over single-strand LC fiber runs. DDM diagnostic telemetry reports accurate voltage and optical levels directly into our Zabbix monitoring server.

149 Helpful vote Comments

W***z

Austria

Verified Purchase

5 .0

2025-12-11

DOM readout on our MikroTik router board shows steady -4dBm TX power. Excellent purchase.

129 Helpful vote Comments

S***z

United States

Verified Purchase

5 .0

2025-10-31

Replaced overpriced OEM transceivers for our municipal surveillance network. The 10km link budget easily handles our 8.5km patch runs with 1490nm return signals, cutting optical deployment expenditure by nearly 70%.

71 Helpful vote Comments

W***t

Ireland

Verified Purchase

5 .0

2025-09-30

Cisco switch recognized it instantly without errors.

84 Helpful vote Comments

C***s

Switzerland

Verified Purchase

5 .0

2025-09-03

Industrial temp rating handles harsh winter sub-zero climate without losing optical link synchronization.

96 Helpful vote Comments

L***n

Switzerland

Verified Purchase

5 .0

2025-08-12

Bulk ordered for our wireless ISP tower backhaul; flawless interoperability with Juniper hardware.

33 Helpful vote Comments

E***r

South Africa

Verified Purchase

5 .0

2025-08-06

Fast deployment, totally MSA compliant optic. ✨

165 Helpful vote Comments

D***s

Viet Nam

Verified Purchase

5 .0

2025-04-24

Paired seamlessly with the 1490TX counterpart over 7km single-strand OS2 fiber. Works perfectly!

192 Helpful vote Comments

T***n

Sweden

Verified Purchase

5 .0

2025-04-22

Great budget-friendly 1310/1490nm single-mode optic!

34 Helpful vote Comments

M***a

Poland

Verified Purchase

5 .0

2025-03-29

Simplex LC single-mode connection halved our patch panel density immediately in the server room.

201 Helpful vote Comments

S***l

Denmark

Verified Purchase

5 .0

2025-03-11

Saved us massive dark fiber lease costs by upgrading to 1.25G BiDi simplex LC.

134 Helpful vote Comments

J***e

Brazil

Verified Purchase

5 .0

2025-02-22

Perfect for campus fiber backbone expansion.

56 Helpful vote Comments

A***g

Canada

Verified Purchase

5 .0

2024-12-17

Bench-tested 20 units across extreme thermal chambers (-40°C to +80°C) before deploying to solar-powered cell site routers. Optical sensitivity held steady at -21dBm with zero frame drops over 9.2km single-mode fiber.

139 Helpful vote Comments

A***n

Peru

Verified Purchase

5 .0

2024-12-03

DOM telemetry works like a charm. ⚡

126 Helpful vote Comments