How does the LS-SM552G-20C perform regarding latency, bit error rate (BER), and packet jitter during high-throughput 2.5G Fibre Channel / CPRI storage replication?

The LS-SM552G-20C features an ultra-low latency optical design with a Bit Error Rate (BER) better than 1E-12, fully compliant with IEEE 802.3z and Fibre Channel specifications. Its precision 1550nm DFB laser transmitter and pin-photodiode receiver deliver stable, jitter-free signal integrity even under sustained high-iops database syncs or 24/7 continuous SAN replication. The integrated DOM diagnostic chip tracks laser bias and power in real-time to alert network administrators before any physical degradation causes link flap.

For enterprise procurement orders, what quality assurance tests are performed on each batch of LS-SM552G-20C modules prior to shipment, and what is the warranty policy?

Every LINK-PP LS-SM552G-20C transceiver undergoes 100% individual factory testing prior to dispatch. Our QA process includes optical spectrum analysis, eye diagram testing, 100% real-switch compatibility verification on targeted OEM platform hardware, and thermal burn-in chamber testing. We back all transceivers with a 3-year limited warranty, full compliance certification (CE, FCC, RoHS, REACH), and lifetime technical support for EEPROM re-coding if you update your switch environment down the road.

If we install this LS-SM552G-20C 2.5G SFP module into a 10G SFP+ port or a standard 1G SFP port on our core switch, will it auto-negotiate or require manual port speed configuration?

Most enterprise switch platforms (such as Cisco, Juniper, or Mikrotik) require manual speed configuration when inserting a 2.5G SFP module into a 10G SFP+ cage. You will typically need to set the port speed manually to 2500Mbps and disable auto-negotiation in the CLI to lock link status properly. When placed in a native 1G-only SFP port, the module will not step down to 1G as it is fixed-rate 2.5Gbps architecture. Always ensure your host switch hardware explicitly supports 2.5G/2.5Gbps SFP rate on that target interface.

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LINK-PP LS-SM552G-20C 2.5G SFP 1550nm 20km DOM Duplex LC SMF Optical Transceiver Module

Name: LINK-PP LS-SM552G-20C 2.5G SFP 1550nm 20km DOM Duplex LC SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 184111
Price: 15.996 USD
Availability: InStock
Rating: 4.9 (21 reviews)

# 184111

Product: LINK-PP LS-SM552G-20C 2.5G SFP 1550nm 20km DOM Duplex LC SMF Optical Transceiver Module
SKU: 184111
P/N: LS-SM552G-20C
Price: $ 18.6
Stock: 450 in Stock
Sold: 850
Product URL: https://www.l-p.com/products/479042.htm

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Compatible P/N:: LS-SM552G-20C | 20km; LS-SM552G-20I | 20km; LS-SM552G-40C | 40km; LS-SM552G-40I | 40km; LS-SM552G-80C | 80km; LS-SM552G-80I | 80km; LS-SM552G-A2C | 120km

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LINK-PP LS-SM552G-20C 2.5G SFP Specifications

With data rates of up to 2.5Gbps over single-mode fiber (SMF) at distances of up to 20km and an operating wavelength of 1550nm, the LINK-PP LS-SM552G-20C 2.5G SFP module provides stable performance with low signal loss.

LINK-PP Part Number	LS-SM552G-20C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	2.5Gbps
Wavelength	1550nm	Max Cable Distance	20km
Connector	LC duplex	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-6 to +1dBm	RX Power	-20 to -1dBm
Receiver Sensitivity	<-18dBm	Receiver Overload	-1dBm
Operating Temperature Range	0 to 70°C	Protocols	MSA Compliant

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Q: How does the LS-SM552G-20C perform regarding latency, bit error rate (BER), and packet jitter during high-throughput 2.5G Fibre Channel / CPRI storage replication? By A***r on 2025-02-18

A: The LS-SM552G-20C features an ultra-low latency optical design with a Bit Error Rate (BER) better than 1E-12, fully compliant with IEEE 802.3z and Fibre Channel specifications. Its precision 1550nm DFB laser transmitter and pin-photodiode receiver deliver stable, jitter-free signal integrity even under sustained high-iops database syncs or 24/7 continuous SAN replication. The integrated DOM diagnostic chip tracks laser bias and power in real-time to alert network administrators before any physical degradation causes link flap. By admin on 2025-02-19
Q: For enterprise procurement orders, what quality assurance tests are performed on each batch of LS-SM552G-20C modules prior to shipment, and what is the warranty policy? By S***r on 2025-01-17

A: Every LINK-PP LS-SM552G-20C transceiver undergoes 100% individual factory testing prior to dispatch. Our QA process includes optical spectrum analysis, eye diagram testing, 100% real-switch compatibility verification on targeted OEM platform hardware, and thermal burn-in chamber testing. We back all transceivers with a 3-year limited warranty, full compliance certification (CE, FCC, RoHS, REACH), and lifetime technical support for EEPROM re-coding if you update your switch environment down the road. By admin on 2025-01-18
Q: If we install this LS-SM552G-20C 2.5G SFP module into a 10G SFP+ port or a standard 1G SFP port on our core switch, will it auto-negotiate or require manual port speed configuration? By R***n on 2024-08-15

A: Most enterprise switch platforms (such as Cisco, Juniper, or Mikrotik) require manual speed configuration when inserting a 2.5G SFP module into a 10G SFP+ cage. You will typically need to set the port speed manually to 2500Mbps and disable auto-negotiation in the CLI to lock link status properly. When placed in a native 1G-only SFP port, the module will not step down to 1G as it is fixed-rate 2.5Gbps architecture. Always ensure your host switch hardware explicitly supports 2.5G/2.5Gbps SFP rate on that target interface. By admin on 2024-08-16

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A***s

Germany

Verified Purchase

5 .0

2026-07-12

Prompt delivery and sturdy duplex LC connector housing. The 1550nm DFB laser provides dependable transmission over our single mode fiber patch cables.

10 Helpful vote Comments

J***z

Singapore

Verified Purchase

5 .0

2026-06-15

Great 1550nm optics for campus networking! =D

62 Helpful vote Comments

S***n

Japan

Verified Purchase

5 .0

2026-05-27

Needed cost-effective 2.5Gbps 1550nm SFP transceivers for an enterprise server room refresh. LINK-PP modules reported full DDM diagnostics right away on our Ubiquiti and Cisco switches :-D

40 Helpful vote Comments

C***s

Iran, Islamic Republic of

Verified Purchase

5 .0

2026-03-14

Strict MSA compliance makes this 2.5G SFP transceiver a versatile addition to our multi-vendor staging kit. We validated 20km single mode fiber links across various building floors without requiring optical attenuators. Receiver sensitivity held stable at -17.5dBm across all test lines.

21 Helpful vote Comments

S***s

Mexico

Verified Purchase

5 .0

2026-03-05

Integrated these commercial grade 1550nm LC duplex SFP transceivers into our enterprise fiber distribution network. Attenuation over a 14km SMF span was minimal, and operating temperatures remained stable between 30℃ and 38℃ under peak network load. Ideal solution for commercial rack deployments.

98 Helpful vote Comments

B***s

Belgium

Verified Purchase

5 .0

2025-12-08

Bought 12 units for office campus patch panel expansion. Full MSA compliance ensured zero vendor lock-in issues across mixed brand switches. Will reorder! :-)

91 Helpful vote Comments

S***s

Macao

Verified Purchase

5 .0

2025-10-31

Evaluated compatibility on Dell, HPE Aruba, and Juniper switches for a 2.5G Fibre Channel SAN interconnect. The LS-SM552G-20C modules synced immediately without requiring forced speed settings. DOM readings accurately displayed laser bias current and case temperature in the switch CLI =D

56 Helpful vote Comments

E***r

Nepal

Verified Purchase

4 .0

2025-10-24

The LS-SM552G-20C optics function perfectly at full 2.5Gbps speed across our 10km office fiber link. I deduct one star because the outer box had minor shipping wear, though the internal anti-static packaging kept the optics completely safe.

90 Helpful vote Comments

N***k

Romania

Verified Purchase

5 .0

2025-08-18

Tested across Mikrotik and Netgear 2.5G switches over a 15km LC duplex single mode fiber run. Optical RX power remains rock solid at -10dBm =)

58 Helpful vote Comments

B***h

Thailand

Verified Purchase

5 .0

2025-07-19

Plugged in, instantly locked at 2.5Gbps ;)

30 Helpful vote Comments

C***s

Mexico

Verified Purchase

5 .0

2025-07-07

As an IT infrastructure consultant, I deployed a batch of LS-SM552G-20C transceivers for a corporate campus fiber backbone spanning 16km. The 1550nm DFB optics delivered exceptional receiver sensitivity well within the -18dBm limit. Digital optical monitoring integrates flawlessly into our SNMP management tools. Highly recommended for enterprise systems integrators.

53 Helpful vote Comments

A***n

Italy

Verified Purchase

5 .0

2025-04-25

Top value 2.5G Fibre Channel optical transceiver.

86 Helpful vote Comments

M***s

Belarus

Verified Purchase

5 .0

2024-11-21

Replaced expensive original brand transceivers with these LINK-PP 2.5Gbps 1550nm 20km optical modules in our datacenter racks. The duplex LC connectors latch securely and laser output measured +0.5dBm during commissioning. Zero bit error rate after a week-long burn-in test. Fantastic OEM alternative ;)

61 Helpful vote Comments

M***s

Canada

Verified Purchase

5 .0

2024-09-28

Upgraded our high-speed 2.5G NAS storage link using this LS-SM552G-20C. Transfer speeds are consistent with zero packet errors or link drops over 24 hours.

17 Helpful vote Comments

H***s

Mexico

Verified Purchase

5 .0

2024-07-02

Installed four LS-SM552G-20C modules to connect our main office rack to a satellite building 12km away. Signal budget is super clean and DOM telemetry reports -8dBm RX power.

38 Helpful vote Comments

C***n

Republic of Korea

Verified Purchase

5 .0

2024-07-01

Solid commercial 2.5G SFP module. Seamless 20km link :)

47 Helpful vote Comments

N***a

Israel

Verified Purchase

5 .0

2024-04-05

Perfect fit.

88 Helpful vote Comments

D***z

Poland

Verified Purchase

4 .0

2024-03-13

Optical parameters are spot on and DOM readings match our handheld optical power meter nicely. Excellent 1550nm 20km transceivers, though shipment took two extra days to reach our facility in Chicago.

30 Helpful vote Comments

P***n

Russian Federation

Verified Purchase

5 .0

2024-03-01

Excellent thermal performance inside our indoor server cabinet. Operating temp stays at a cool 34C under heavy data throughput stress tests.

77 Helpful vote Comments

N***h

Philippines

Verified Purchase

5 .0

2024-01-30

Deployed 30 units across our regional branch office server rooms for 2.5G uplink connections. Real-time DDM diagnostic telemetry is essential for our ops team, and these modules reliably report laser power and voltage to PRTG. Outstanding build quality and top-notch value.

52 Helpful vote Comments

A***r

Sweden

Verified Purchase

5 .0

2024-01-13

Flawless performance for our SMB enterprise core switch setup. DDM features report real-time light levels and supply voltage directly to our monitoring dashboard.

7 Helpful vote Comments