Will this LS-BL49551G-A6I module work directly with Cisco Catalyst switches without throwing any third-party optic warning errors?

Yes, absolutely! These modules are pre-coded with standard vendor compatibility. If you need specific OEM coding like Cisco, HP, or Juniper, you can request it during checkout, and they will program it before shipping so it runs completely error-free.

Is the industrial temperature rating (-40°C to 85°C) true for both ends, and does it require any special cleaning before installation?

Yes, the industrial rating covers the full harsh temperature range. As for installation, we always recommend standard optical cleaning with 99% isopropyl alcohol wipes and a fiber scope check before plugging in, just to prevent dust from degrading that 160km link budget!

Can I pair this 1490nm-TX/1550nm-RX module with a standard media converter on the remote end, or does it strictly need the matching inverse BiDi SFP?

You will need the matching inverse BiDi SFP on the remote end (which would be 1550nm-TX/1490nm-RX) because BiDi technology multiplexes different wavelengths over a single strand of single-mode fiber. A standard dual-fiber media converter won't match the wavelength pairing.

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LINK-PP LS-BL49551G-A6I 1G BiDi SFP 1490nm-TX/1550nm-RX 160km DOM Simplex LC SMF Optical Transceiver Module (Industrial)

Name: LINK-PP LS-BL49551G-A6I 1G BiDi SFP 1490nm-TX/1550nm-RX 160km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 202143
Price: 51.6 USD
Availability: InStock
Rating: 5 (22 reviews)

# 202143

Product: LINK-PP LS-BL49551G-A6I 1G BiDi SFP 1490nm-TX/1550nm-RX 160km DOM Simplex LC SMF Optical Transceiver Module (Industrial)
SKU: 202143
P/N: LS-BL49551G-A6I
Price: $ 60
Stock: 120 in Stock
Sold: 880
Product URL: https://www.l-p.com/products/491624.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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$ 55.2

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Manufacture: LINK-PP

P/N: LS-BL49551G-A6I

Compatible:: Cisco; LINK-PP; Arista; Brocade; Dell; Extreme; FS; Generic; H3C; HPE Aruba; Intel; Juniper; NVIDIA/Mellanox

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-BL49551G-A6I 1G BiDi SFP Specifications

The LINK-PP LS-BL49551G-A6I 1G BiDi transceiver is a high-performance optical module designed for reliable long-distance connectivity, delivering 1.25 Gbps data transmission over single-mode fiber up to 160 km at transmit wavelengths of 1490nm and receive wavelengths of 1550nm.

LINK-PP Part Number	LS-BL49551G-A6I	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1490nm-TX/1550nm-RX	Max Cable Distance	160km
Connector	Simplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	APD
TX Power	0 to +5dBm	RX Power	-28 to -1dBm
Receiver Sensitivity	<-34dBm	DOM Support	Yes
Operating Temperature Range	-40 to 85°C	Protocols	SFP MSA、SFF-8472

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Q: Will this LS-BL49551G-A6I module work directly with Cisco Catalyst switches without throwing any third-party optic warning errors? By B***s on 2026-02-02

A: Yes, absolutely! These modules are pre-coded with standard vendor compatibility. If you need specific OEM coding like Cisco, HP, or Juniper, you can request it during checkout, and they will program it before shipping so it runs completely error-free. By admin on 2026-02-02
Q: Is the industrial temperature rating (-40°C to 85°C) true for both ends, and does it require any special cleaning before installation? By G***n on 2025-05-04

A: Yes, the industrial rating covers the full harsh temperature range. As for installation, we always recommend standard optical cleaning with 99% isopropyl alcohol wipes and a fiber scope check before plugging in, just to prevent dust from degrading that 160km link budget! By admin on 2025-05-05
Q: Can I pair this 1490nm-TX/1550nm-RX module with a standard media converter on the remote end, or does it strictly need the matching inverse BiDi SFP? By T***s on 2024-04-20

A: You will need the matching inverse BiDi SFP on the remote end (which would be 1550nm-TX/1490nm-RX) because BiDi technology multiplexes different wavelengths over a single strand of single-mode fiber. A standard dual-fiber media converter won't match the wavelength pairing. By admin on 2024-04-20

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G***z

Finland

Verified Purchase

5 .0

2026-04-28

Fast shipping to the US. Packaging was secure and anti-static.

24 Helpful vote Comments

Z***g

Bangladesh

Verified Purchase

5 .0

2026-03-07

Excellent customer support when I had questions about the wavelength pair.

49 Helpful vote Comments

A***s

Norway

Verified Purchase

5 .0

2026-02-20

Ordered 20 units for a rural campus backbone upgrade. All passed loopback tests successfully.

8 Helpful vote Comments

D***g

Australia

Verified Purchase

5 .0

2026-02-07

Works right out of the box with our Cisco switches, zero hassle configuring!

26 Helpful vote Comments

P***t

Canada

Verified Purchase

5 .0

2026-01-17

DDM monitoring is accurate and responsive. Great transceiver.

10 Helpful vote Comments

A***s

Maldives

Verified Purchase

5 .0

2025-11-16

Solid industrial grade performance, handling extreme temperatures in our outdoor cabinet easily.

67 Helpful vote Comments

A***n

Canada

Verified Purchase

5 .0

2025-10-02

Very stable optical power output. Meets all our link budget requirements.

33 Helpful vote Comments

S***n

Argentina

Verified Purchase

5 .0

2025-08-09

1490/1550nm BiDi setup saved us from running a second fiber strand. Huge cost saver!

15 Helpful vote Comments

A***l

Malaysia

Verified Purchase

5 .0

2025-07-25

Works seamlessly with our Huawei switches too. Top notch.

99 Helpful vote Comments

S***n

Ireland

Verified Purchase

5 .0

2025-04-17

Clean simplex LC connection, locking mechanism feels very durable.

39 Helpful vote Comments

I***z

New Zealand

Verified Purchase

5 .0

2025-04-08

160km link established with zero packet loss. Impressive reach for the price.

74 Helpful vote Comments

A***n

Republic of Korea

Verified Purchase

5 .0

2025-03-20

Perfect fit for our data center expansion project.

64 Helpful vote Comments

N***z

Brazil

Verified Purchase

4 .0

2025-02-07

Took a few extra days to clear customs, but the module itself works great.

4 Helpful vote Comments

G***k

Mexico

Verified Purchase

5 .0

2025-01-17

Great industrial SFP module for harsh environments.

61 Helpful vote Comments

J***r

Cambodia

Verified Purchase

5 .0

2025-01-05

Plugged it into our Mikrotik router and it recognized the DOM instantly.

96 Helpful vote Comments

N***g

United States

Verified Purchase

5 .0

2024-12-14

Running steady for two weeks now without a single dropped frame.

10 Helpful vote Comments

A***e

Poland

Verified Purchase

5 .0

2024-11-13

Reliable 1G BiDi link over massive distance. Five stars! ⭐

9 Helpful vote Comments

R***s

Nepal

Verified Purchase

5 .0

2024-10-15

Good value compared to OEM Cisco modules. Will definitely reorder.

7 Helpful vote Comments

C***s

Brunei Darussalam

Verified Purchase

5 .0

2024-07-21

Setup was a breeze on our HP Aruba gear. Highly recommended!

31 Helpful vote Comments

C***n

Belgium

Verified Purchase

5 .0

2024-02-08

Perfect for our long-distance industrial surveillance backhaul.

27 Helpful vote Comments

Z***e

Turkey

Verified Purchase

5 .0

2024-01-24

Rock solid connection over single mode fiber. Very happy.

3 Helpful vote Comments

C***s

Brunei Darussalam

Verified Purchase

5 .0

2024-01-03

Awesome transceiver. Shipped quickly! ✨

100 Helpful vote Comments

Verified Purchase

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LINK-PP LS-BL49551G-A6I 1G BiDi SFP 1490nm-TX/1550nm-RX 160km DOM Simplex LC SMF Optical Transceiver Module (Industrial)

Product Details

LINK-PP LS-BL49551G-A6I 1G BiDi SFP Specifications

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Key Features of LINK-PP LS-BL49551G-A6I 1G BiDi SFP

LINK-PP LS-BL49551G-A6I 1G BiDi SFP Optical Module

LS-BL49551G-A6I: Reliable 1.25 Gbps Connectivity for Efficient Gigabit Connectivity

LS-BL49551G-A6I Module with 1490nm-TX/1550nm-RX Wavelength

LS-BL49551G-A6I Module Supporting 160km Transmission

LS-BL49551G-A6I Module with Simplex LC Interface

LS-BL49551G-A6I Module with DOM for Real-Time Monitoring

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