Will this 1G BiDi SFP work smoothly if I connect one end to a Cisco catalyst switch and the other to an HPE router?

Yes, absolutely! The LS-BL49311G-20C is strictly MSA compliant. We’ve ran extensive multi-brand switch compatibility tests on it, ensuring seamless OEM interoperability between Cisco, HPE, Juniper, and other major vendors without throwing any unsupported transceiver errors on your dashboard.

Our telecom project is on a tight deadline. What's the lead time like if we need 500 of these 20km transmission SMF modules shipped to the US?

We maintain deep warehouse inventory levels to guarantee supply chain stability. A bulk order of 500 units typically processes and ships within 3 days. Expedited transit to the US takes roughly 3 to 6 business days, ensuring you'll hit your strict deployment schedule.

Quick check before I buy—can I use OM3 multimode patch cables with this, or does it exclusively require single-mode fiber?

This optical module features a specialized DFB transmitter and PIN receiver engineered exclusively for Single Mode Fiber (SMF) to achieve its 20km reach. Using Multimode fiber (like OM3 or OM4) will cause severe signal loss. Always pair it with an SMF simplex LC patch cable for optimal performance!

This model shows a 0 to 70°C operating temperature. Do you have an industrial version that can survive harsher outdoor enclosures?

Yes! While the LS-BL49311G-20C is commercial grade—making it perfect for indoor, climate-controlled scenarios—we also offer the LS-BL49311G-20I industrial grade variant. The "I" version handles extreme temperatures from -40 to 85°C, which is ideal for rugged cell site backhaul and unconditioned remote outdoor cabinets.

Is this 1.25Gbps transceiver fully compliant with standard industry protocols for our campus fiber network?

Yes. The LS-BL49311G-20C complies fully with Fast Ethernet, Gigabit Fibre Channel standards, and the SFP Multi-Source Agreement (MSA). It meets all essential regulatory certifications to guarantee safe, reliable, and compliant networking in complex enterprise infrastructure environments.

Breadcrumb: Home; Products; Optics Transceivers | SFP Modules; 1/2/4G Transceiver Modules; 1G BiDi SFP; 215395

Click to open expanded view

DELL SFP-GE-BX20D-1490 Compatible LINK-PP 1G SFP BiDi 1490nm-TX/1310nm-RX 20km Simplex LC DOM SMF Optical Transceiver Module

Name: DELL SFP-GE-BX20D-1490 Compatible LINK-PP 1G SFP BiDi 1490nm-TX/1310nm-RX 20km Simplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 215395
Price: 12.728 USD
Availability: InStock
Rating: 5 (21 reviews)

# 215395

Product: DELL SFP-GE-BX20D-1490 Compatible LINK-PP 1G SFP BiDi 1490nm-TX/1310nm-RX 20km Simplex LC DOM SMF Optical Transceiver Module
SKU: 215395
P/N: LS-BL49311G-20C
Price: $ 14.8
Stock: 2625 in Stock
Sold: 1.3K
Product URL: https://www.l-p.com/products/477413.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

21 Reviews

5 Questions

Request Stock

1.3K Sold

$ 14.8

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

Qty (pcs) :

Unit Price :

$ 14.8

100

$ 14.06

1000

$ 13.616

3000

$ 13.172

6000

$ 12.728

Manufacture: LINK-PP

P/N: LS-BL49311G-20C

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

Compatible P/N:: SFP-GE-BX10-1310 | 10km; SFP-GE-BX10-1550 | 10km; SFP-GE-BX10D-1490 | 10km; SFP-GE-BX10U-1310 | 10km; SFP-GE-BX20-1310 | 20km; SFP-GE-BX20-1550 | 20km; SFP-GE-BX20D-1490 | 20km; SFP-GE-BX20U-1310 | 20km; SFP-GE-BX40D-1490 | 40km; SFP-GE-BX40U-1310 | 40km; SFP-GE-BX80-1490 | 80km; SFP-GE-BX80-1550 | 80km; SFP-GE-BX120D-1550 | 120km; SFP-GE-BX120U-1490 | 120km; SFP-1G45-BX160 | 160km; SFP-1G45-BX160-I | 160km; SFP-1G54-BX160 | 160km; SFP-1G54-BX160-I | 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

DELL SFP-GE-BX20D-1490 Compatible LINK-PP 1G BiDi SFP Specifications

The DELL SFP-GE-BX20D-1490 Compatible LINK-PP module is a high-performance 1G BiDi SFP optical transceiver engineered for highly reliable Gigabit Ethernet connections. This single-mode fiber module operates efficiently over 20km distances using a simplex LC interface. Featuring 1490nm-TX and 1310nm-RX wavelengths, this commercial-grade optical module ensures seamless networking performance for modern enterprise infrastructure upgrades.

DELL Part Number	SFP-GE-BX20D-1490	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1490nm-TX/1310nm-RX	Max Cable Distance	20km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	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

Videos

Matching Products

Pictures

ID#

Description

Price

Stock

Add to Cart

Download

Product Drawing

PDF
LS-BL49311G-20C.pdf

Questions & Answers
Ask a Question

No data

Q: Will this 1G BiDi SFP work smoothly if I connect one end to a Cisco catalyst switch and the other to an HPE router? By E***n on 2025-12-14

A: Yes, absolutely! The LS-BL49311G-20C is strictly MSA compliant. We’ve ran extensive multi-brand switch compatibility tests on it, ensuring seamless OEM interoperability between Cisco, HPE, Juniper, and other major vendors without throwing any unsupported transceiver errors on your dashboard. By admin on 2025-12-14
Q: Our telecom project is on a tight deadline. What's the lead time like if we need 500 of these 20km transmission SMF modules shipped to the US? By B***e on 2025-11-16

A: We maintain deep warehouse inventory levels to guarantee supply chain stability. A bulk order of 500 units typically processes and ships within 3 days. Expedited transit to the US takes roughly 3 to 6 business days, ensuring you'll hit your strict deployment schedule. By admin on 2025-11-16
Q: Quick check before I buy—can I use OM3 multimode patch cables with this, or does it exclusively require single-mode fiber? By M***z on 2025-11-02

A: This optical module features a specialized DFB transmitter and PIN receiver engineered exclusively for Single Mode Fiber (SMF) to achieve its 20km reach. Using Multimode fiber (like OM3 or OM4) will cause severe signal loss. Always pair it with an SMF simplex LC patch cable for optimal performance! By admin on 2025-11-02
Q: This model shows a 0 to 70°C operating temperature. Do you have an industrial version that can survive harsher outdoor enclosures? By D***l on 2025-10-14

A: Yes! While the LS-BL49311G-20C is commercial grade—making it perfect for indoor, climate-controlled scenarios—we also offer the LS-BL49311G-20I industrial grade variant. The "I" version handles extreme temperatures from -40 to 85°C, which is ideal for rugged cell site backhaul and unconditioned remote outdoor cabinets. By admin on 2025-10-14
Q: Is this 1.25Gbps transceiver fully compliant with standard industry protocols for our campus fiber network? By R***z on 2025-10-07

A: Yes. The LS-BL49311G-20C complies fully with Fast Ethernet, Gigabit Fibre Channel standards, and the SFP Multi-Source Agreement (MSA). It meets all essential regulatory certifications to guarantee safe, reliable, and compliant networking in complex enterprise infrastructure environments. By admin on 2025-10-07

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

S***g

Germany

Verified Purchase

4 .0

2026-06-01

Delivery took an extra day, but the 1G BiDi SFP works perfectly on Cisco. -_-

173 Helpful vote Comments

L***z

Costa Rica

Verified Purchase

5 .0

2026-04-16

I ran extensive multi-brand switch compatibility tests with this 1G BiDi SFP on Cisco, HPE, and Netgear. The 1490nm-TX/1310nm-RX WDM technology handled our enterprise infrastructure upgrade without a single CRC error. Highly reliable!

62 Helpful vote Comments

M***l

Netherlands

Verified Purchase

5 .0

2026-04-09

Nice operating temperature stability for indoor cabinets.

200 Helpful vote Comments

C***r

Ukraine

Verified Purchase

5 .0

2026-04-07

Affordable 20km transmission SMF module, highly recommended.

188 Helpful vote Comments

M***z

Netherlands

Verified Purchase

5 .0

2026-03-31

Great 1490nm-TX/1310nm-RX module for campus fiber networking!

190 Helpful vote Comments

C***s

Canada

Verified Purchase

5 .0

2026-02-16

The 20km transmission distance is accurate. Perfect for our distant MAN connections.

106 Helpful vote Comments

D***t

United Arab Emirates

Verified Purchase

5 .0

2026-02-15

Exactly the 1G SFP we needed.

129 Helpful vote Comments

E***n

Portugal

Verified Purchase

5 .0

2025-12-27

We needed reliable links for remote outdoor cabinets. Despite being commercial grade (0-70°C), they hold up perfectly in our enclosures. Excellent 20km long-reach performance for bridging metropolitan area networks securely.

102 Helpful vote Comments

M***k

Malaysia

Verified Purchase

5 .0

2025-12-24

Procured a batch of these simplex LC DOM transceivers for our core telecom network. The DFB transmitter and PIN receiver combo guarantees stable 1.25Gbps throughput over 20km SMF. Massive cabling cost savings!

45 Helpful vote Comments

T***s

Colombia

Verified Purchase

5 .0

2025-12-13

Reliable 1G connection for cell site backhaul over SMF. Outstanding value and performance!

171 Helpful vote Comments

P***r

Colombia

Verified Purchase

5 .0

2025-12-11

Solid 1G BiDi SFP. Works on Juniper switches.

71 Helpful vote Comments

R***n

Colombia

Verified Purchase

5 .0

2025-11-13

Plug and play on my Dell equipment. (y)

201 Helpful vote Comments

S***e

Canada

Verified Purchase

5 .0

2025-10-29

MSA compliant and DOM works flawlessly! \o/

52 Helpful vote Comments

R***n

Ireland

Verified Purchase

5 .0

2025-10-28

Fits nicely into our outdoor cabinets, surviving the standard 0 to 70°C operating temperature.

68 Helpful vote Comments

T***g

United States

Verified Purchase

5 .0

2024-05-26

Quick order formats at very competitive prices!

59 Helpful vote Comments

A***a

Austria

Verified Purchase

5 .0

2024-03-13

Order was easy, price was competitive and the shipping was Fast.

32 Helpful vote Comments

E***o

Netherlands

Verified Purchase

5 .0

2024-01-25

No problem so far after quite a few orders over the past few years.

64 Helpful vote Comments

K***m

United States

Verified Purchase

5 .0

2024-01-11

Very good and consistent product.

76 Helpful vote Comments

R***p

United Arab Emirates

Verified Purchase

5 .0

2023-11-12

I really enjoy shoppin and is really easy and reasonable thank you for your services

81 Helpful vote Comments

K***m

United States

Verified Purchase

5 .0

2023-09-23

I think the 100G QSFP28 LR4 1310nm 10km SMF Optical Transceiver Module from l-p.com are great and their prices are competitive with anyone online. I'm more than happy with the transceivers I received.

38 Helpful vote Comments

K***n

Hungary

Verified Purchase

5 .0

2023-01-18

Service was good, prompt delivery.

84 Helpful vote Comments