Hey, we're running a mixed environment with Cisco Catalyst and newer Arista switches. Will this transceiver trigger any "unsupported module" errors?

No worries at all. The LS-SM311G-40C is 100% MSA compliant and we code it to be fully compatible with major OEMs including Cisco, Arista, Juniper, and HPE. You can plug and play without manual bypass commands.

Does the DOM feature on this module support standard SFF-8472? We need to pull laser bias and Tx/Rx optical power data into our monitoring software.

Yes, it does! The integrated Digital Optical Monitoring (DOM/DDM) fully complies with the SFF-8472 standard and IEEE 802.3ah-2004 protocols. Your NMS will seamlessly pull real-time diagnostics like temp, voltage, and Rx/Tx power levels straight from the transceiver.

I'm an IT admin planning a massive data center upgrade. If I need around 2,000 pieces of these 1.25G SFP modules, is there any bulk pricing available?

Absolutely! For large batch deployments, we offer tiered volume discounts. If you're ordering 1,000+ units, there will be a good price, and you can contact our sales team directly for specific net terms and additional project discounts!

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Alcatel-Lucent SFP-GIG-LH40 Compatible LINK-PP 1.25G SFP 1310nm 40km Duplex LC DOM SMF Optical Transceiver Module

Name: Alcatel-Lucent SFP-GIG-LH40 Compatible LINK-PP 1.25G SFP 1310nm 40km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 212779
Price: 9.46 USD
Availability: InStock
Rating: 5 (21 reviews)

# 212779

Product: Alcatel-Lucent SFP-GIG-LH40 Compatible LINK-PP 1.25G SFP 1310nm 40km Duplex LC DOM SMF Optical Transceiver Module
SKU: 212779
P/N: LS-SM311G-40C
Price: $ 11
Stock: 973 in Stock
Sold: 1.4K
Product URL: https://www.l-p.com/products/491522.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

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Manufacture: LINK-PP

P/N: LS-SM311G-40C

Compatible:: Cisco; LINK-PP; Adtran; Alcatel-Lucent; Allied Telesis; Arista; Avaya; Broadcom; Brocade; Calix; Ciena; D-Link; Dell; Extreme; FS; Generic; H3C; HPE; HPE H3C; HW; IBM; Intel; Juniper; MikroTik; TRENDnet; Ubiquiti

Compatible P/N:: SFP-GIG-EXTND | 2km; SFP1G-SX-31-I | 2km; ISFP-GIG-LX | 10km; iSFP-GIG-LX | 10km; SFP1G-ELX-31 | 20km; ISFP-GIG-LX | 40km; SFP-GIG-LH40 | 40km; SFP1G-EX-55 | 40km; SFP1G-ZX-55-I | 80km; iSFP-GIG-LH70 | 80km; SFP1G-ZX100-55 | 100km; SFP-GIG-EZX | 120km; SFP-GIG-ZXC | 160km; SFP1G-ZXC-160 | 160km

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Alcatel-Lucent SFP-GIG-LH40 Compatible LINK-PP 1.25G SFP Specifications

The Alcatel-Lucent SFP-GIG-LH40 Compatible LINK-PP module is a commercial-grade 1.25G SFP optical transceiver designed for Gigabit Ethernet applications. Operating at 1310nm over single-mode fiber, it supports transmission distances up to 40km through a duplex LC interface. The module features low power consumption, hot-pluggable design, and integrated DOM functionality for enhanced network visibility and management.

Alcatel-Lucent Part Number	SFP-GIG-LH40	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1310nm	Max Cable Distance	40km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-5 to 0dBm	RX Power	-23 to -1dBm
Receiver Sensitivity	<-23dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	SFF-8472 MSA Compliant, IEEE 802.3ah-2004

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Q: Hey, we're running a mixed environment with Cisco Catalyst and newer Arista switches. Will this transceiver trigger any "unsupported module" errors? By M***e on 2026-04-24

A: Hi there! No worries at all. The LS-SM311G-40C is 100% MSA compliant and we code it to be fully compatible with major OEMs including Cisco, Arista, Juniper, and HPE. You can plug and play without manual bypass commands. By admin on 2026-04-24
Q: Does the DOM feature on this module support standard SFF-8472? We need to pull laser bias and Tx/Rx optical power data into our monitoring software. By L***t on 2025-12-20

A: Yes, it does! The integrated Digital Optical Monitoring (DOM/DDM) fully complies with the SFF-8472 standard and IEEE 802.3ah-2004 protocols. Your NMS will seamlessly pull real-time diagnostics like temp, voltage, and Rx/Tx power levels straight from the transceiver. By admin on 2025-12-20
Q: I'm an IT admin planning a massive data center upgrade. If I need around 2,000 pieces of these 1.25G SFP modules, is there any bulk pricing available? By J***e on 2025-10-23

A: Absolutely! For large batch deployments, we offer tiered volume discounts. If you're ordering 1,000+ units, there will be a good price, and you can contact our sales team directly for specific net terms and additional project discounts! By admin on 2025-10-23

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A***s

Turkey

Verified Purchase

5 .0

2026-04-30

Flawless 1.25G SFP performance out of the box.

240 Helpful vote Comments

S***r

Canada

Verified Purchase

5 .0

2026-03-02

Perfect SMF module for my home lab!

116 Helpful vote Comments

P***h

Switzerland

Verified Purchase

5 .0

2026-02-28

Solid duplex LC connectors, snapped right in.

239 Helpful vote Comments

C***z

Sweden

Verified Purchase

5 .0

2026-02-24

As a network engineer, I highly recommend the LS-SM311G-40C for data center mass deployment. The DOM integration via IEEE 802.3ah-2004 protocol provides crucial real-time monitoring for voltage and laser bias.

120 Helpful vote Comments

D***s

Belgium

Verified Purchase

5 .0

2026-01-15

Plug and play with our Ubiquiti gear (❁´◡`❁)

216 Helpful vote Comments

D***n

Mexico

Verified Purchase

5 .0

2025-12-07

Insane value for mass data center deployment!

60 Helpful vote Comments

K***n

Morocco

Verified Purchase

5 .0

2025-09-19

Solved our campus fiber link issues instantly!

81 Helpful vote Comments

D***n

Brazil

Verified Purchase

5 .0

2025-08-28

I bought a batch for our outdoor networking enclosures. Even though it's a 0-70C commercial part, it survived our summer heatwave beautifully while passing campus optical networking traffic with zero CRC errors.

70 Helpful vote Comments

D***n

Austria

Verified Purchase

5 .0

2025-06-12

DOM feature works great on MikroTik switches.

134 Helpful vote Comments

B***s

Macao

Verified Purchase

5 .0