Does this module require optical attenuators for shorter fiber runs?

While designed for 20km, the 1310nm laser's output power is generally safe for shorter links (e.g., 2km to 5km) without attenuators, but it is always recommended to check receive power levels via DOM to avoid receiver saturation on very short patch cables.

Can I connect this 20km module to a 10km module on the other end?

Yes, as long as both modules operate at 10Gbps over a 1310nm wavelength on Single-Mode Fiber, they will communicate, provided the total link distance does not exceed the lower module's optical budget (10km).

What type of fiber cable is compatible?

The AT-SP10LR20 requires standard Single-Mode Fiber (SMF), typically 9/125um OS1 or OS2, terminated with a Duplex LC connector.

Is it compatible with my specific brand of switch?

The module is highly compatible with most standard networking equipment from brands like Cisco, Arista, and Juniper, thanks to its strict MSA standard programming.

I need to deploy these in an outdoor street cabinet. Can this module survive extreme temperatures, and do I need OS2 single-mode fiber for a 15km run?

This specific LS-SM3110-20C model is commercial temp (0°C to 70°C). For unconditioned outdoor cabinets, we highly recommend selecting our Industrial Temp version (-40°C to 85°C) for stable Tx/Rx performance. And yes, a 15km run requires Single-Mode Fiber (SMF) like OS1 or OS2 using a Duplex LC connector.

Hey guys, will these 10G SFP+ modules work with my older Cisco Catalyst switches and newer Arista gear? Also, do you offer any discount for bulk NOC deployment?

Yes! These transceivers are fully MSA compliant and rigorously tested for OEM compatibility, plugging seamlessly into Cisco, Arista, Juniper, and other major brands. We absolutely offer tiered B2B pricing for wholesale and batch deployments. Please reach out to our enterprise sales team for a custom quote.

Are these strictly for standard 10GBASE-LR Ethernet, or can they auto-negotiate and support CPRI/eCPRI protocols for our telecom tower setup?

These modules are incredibly versatile. In addition to standard 10G Ethernet, they natively support CPRI and eCPRI protocols. This makes them a perfect, low-latency choice for telecom base station backhaul, remote radio units (RRU), and enterprise switching alike.

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Allied Telesis AT-SP10LR20 Compatible LINK-PP 10G SFP+ 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module

Name: Allied Telesis AT-SP10LR20 Compatible LINK-PP 10G SFP+ 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 213458
Price: 27.52 USD
Availability: InStock
Rating: 5 (22 reviews)

# 213458

Product: Allied Telesis AT-SP10LR20 Compatible LINK-PP 10G SFP+ 1310nm 20km Duplex LC DOM SMF Optical Transceiver Module
SKU: 213458
P/N: LS-SM3110-20C
Price: $ 32
Stock: 1172 in Stock
Sold: 962
Product URL: https://www.l-p.com/products/493735.htm

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Compatible:: Cisco; LINK-PP; Allied Telesis; Arista; Brocade; Ciena; D-Link; Dell; Extreme; F5; Fortinet; Generic; HW; Intel; Juniper; Mellanox; MikroTik; Netgear; Palo Alto; TP-Link; Ubiquiti

Compatible P/N:: AT-SP10LR20 | 20km

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Allied Telesis AT-SP10LR20 Compatible LINK-PP 10G SFP+ Specifications

The Allied Telesis AT-SP10LR20 Compatible LINK-PP module is an extended-reach 10Gbps SFP+ optical transceiver optimized for 20-kilometer links over Single-Mode Fiber. It utilizes a precision 1310nm DFB laser and a Duplex LC connector, complete with Digital Optical Monitoring to ensure high-performance data transport across wide-area networks.

Allied Telesis Part Number	AT-SP10LR20	Vendor Name	LINK-PP
Part Status	Active	Form Factor	SFP+
Max Data Rate	10.7Gbps	Wavelength	1310nm
Max Cable Distance	20km	Connector	Duplex LC
Transmitter Type	DFB	Receiver Type	PIN
Media	SMF	Receiver Sensitivity	<-14.4dBm
TX Power	-6.5 to -0.5dBm	RX Power	-20 to -1dBm
Commercial Temperature Range	0 to 70°C	Protocols	IEEE 802.3ae, SFF-8472, SFF-8431, SFF-8432, SFP+ MSA Compliant, CPRI, eCPRI

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Q: I need to deploy these in an outdoor street cabinet. Can this module survive extreme temperatures, and do I need OS2 single-mode fiber for a 15km run? By P***z on 2026-03-02

A: This specific LS-SM3110-20C model is commercial temp (0°C to 70°C). For unconditioned outdoor cabinets, we highly recommend selecting our Industrial Temp version (-40°C to 85°C) for stable Tx/Rx performance. And yes, a 15km run requires Single-Mode Fiber (SMF) like OS1 or OS2 using a Duplex LC connector. By admin on 2026-03-02
Q: Hey guys, will these 10G SFP+ modules work with my older Cisco Catalyst switches and newer Arista gear? Also, do you offer any discount for bulk NOC deployment? By D***n on 2025-02-14

A: Yes! These transceivers are fully MSA compliant and rigorously tested for OEM compatibility, plugging seamlessly into Cisco, Arista, Juniper, and other major brands. We absolutely offer tiered B2B pricing for wholesale and batch deployments. Please reach out to our enterprise sales team for a custom quote. By admin on 2025-02-14
Q: Are these strictly for standard 10GBASE-LR Ethernet, or can they auto-negotiate and support CPRI/eCPRI protocols for our telecom tower setup? By C***n on 2024-11-01

A: These modules are incredibly versatile. In addition to standard 10G Ethernet, they natively support CPRI and eCPRI protocols. This makes them a perfect, low-latency choice for telecom base station backhaul, remote radio units (RRU), and enterprise switching alike. By admin on 2024-11-02

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M***z

Mexico

Verified Purchase

5 .0

2026-05-06

Cheap and reliable Cisco compatible module.

25 Helpful vote Comments

S***t

Dominican Republic

Verified Purchase

5 .0

2026-04-13

Stable 1310nm wavelength, no signal drops.

161 Helpful vote Comments

J***s

Colombia

Verified Purchase

5 .0

2026-03-19

Plug and play Duplex LC optics!

138 Helpful vote Comments

A***s

Switzerland

Verified Purchase

5 .0

2025-10-29

No Tx/Rx errors so far.

143 Helpful vote Comments

J***z

Hong Kong

Verified Purchase

5 .0

2025-10-10

Accurate DOM readings, highly recommend.

71 Helpful vote Comments

J***t

Austria

Verified Purchase

5 .0

2025-05-20

Reliable 1310nm optics. We use them for NOC cross-connects, and the DOM feature is accurate.

26 Helpful vote Comments

S***s

Ethiopia

Verified Purchase

5 .0

2025-04-09

Tested these in an outdoor cabinet for cell site backhaul. Tx/Rx light levels are optimal over a 15km SMF run using the eCPRI protocol. Definitely buying more for telecom upgrades.

22 Helpful vote Comments

S***s

Austria

Verified Purchase

5 .0

2025-02-26

Works perfectly in my Unifi switch!

34 Helpful vote Comments

L***a

Costa Rica

Verified Purchase

5 .0

2025-02-20

10G link came up instantly.

40 Helpful vote Comments

L***n

Macao

Verified Purchase

5 .0

2024-12-19

Rock solid 20km SMF transceiver.

194 Helpful vote Comments

S***z

Austria

Verified Purchase

5 .0

2024-10-30

Great 20km LC SMF transceivers. Plug and play with our Juniper EX switches without issues.

93 Helpful vote Comments

S***i

Russian Federation

Verified Purchase

5 .0

2024-06-05

Easy to use, good prices

99 Helpful vote Comments

P***o

Australia

Verified Purchase

5 .0

2024-05-04

Service was good, prompt delivery.

99 Helpful vote Comments

S***t

United States

Verified Purchase

5 .0

2024-04-28

From selection to price to ordering,best store for all that they sell.

64 Helpful vote Comments

B***l

Philippines

Verified Purchase

5 .0

2023-12-23

It's arrived quickly, well packaged, many thanks.

52 Helpful vote Comments

C***N

Sweden

Verified Purchase

5 .0

2023-06-11

We have cooperated with l-p.com for a little over a year and I'm very happy to say that it has been very smooth.

56 Helpful vote Comments

D***e

Malaysia

Verified Purchase

5 .0

2023-05-30

So far I'm well satisfied with my purchase.

83 Helpful vote Comments

J***t

Russian Federation

Verified Purchase

5 .0

2023-03-30

no issue so far on the item.

19 Helpful vote Comments

A***n

Spain

Verified Purchase

5 .0

2023-03-23

Never a problem at LINK-PP. Great selection of products and excellent customer service. Their selection continues to amaze me. They are an excellent online retailer and I highly recommend them.

72 Helpful vote Comments

B***l

United Arab Emirates

Verified Purchase

5 .0

2023-03-02

Purchase it just because of the low price. But a little surprised when receiver it. Not bad.

56 Helpful vote Comments

Q***e

Belarus

Verified Purchase

5 .0