Can I use this optical module with OM3 multi-mode fiber that is already installed in our building?

No. This LS-CW5110-40C CWDM module is designed for single-mode fiber and supports up to 40km transmission. It should not be used with OM3 or other multi-mode fiber for this application.

Does this LS-CW5110-40C module support live insertion? We need to replace optics during scheduled maintenance without shutting down the switch.

Yes. It has a hot-pluggable SFP+ form factor, so it can normally be inserted or removed while the device is powered on. Follow your switch vendor’s maintenance procedure to avoid affecting the active link.

Our network room is air-conditioned, but the switch can run warm. Is the commercial version okay?

Yes, it is generally suitable for a controlled indoor network room if the module case temperature remains between 0°C and +70°C. Monitoring the module temperature through DOM is recommended.

We already have a CWDM MUX with LC ports. Can this SFP module connect directly to it?

Yes, if the MUX includes a 1510nm CWDM channel and uses compatible duplex LC single-mode connections. Make sure the module wavelength matches the MUX channel exactly.

We need to carry multiple 10G services over one pair of single-mode fibers between two sites. Is this the right type of module?

Yes, this module is suitable for a CWDM system to carry one 10G service over the 1510nm channel. If you need to carry multiple 10G services over one fiber pair, you will need one SFP module for each CWDM wavelength (e.g., 1470nm, 1490nm, 1510nm, etc.), combined with a matching CWDM MUX/DEMUX. Ensure the same wavelength is used at both ends of the link.

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Alcatel-Lucent LS-CW5110-40C Compatible LINK-PP 10G SFP+ CWDM 1510nm 40km Duplex LC DOM SMF Optical Transceiver Module

Name: Alcatel-Lucent LS-CW5110-40C Compatible LINK-PP 10G SFP+ CWDM 1510nm 40km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 223442
Price: 220.16 USD
Availability: InStock
Rating: 4.9 (38 reviews)

# 223442

Product: Alcatel-Lucent LS-CW5110-40C Compatible LINK-PP 10G SFP+ CWDM 1510nm 40km Duplex LC DOM SMF Optical Transceiver Module
SKU: 223442
P/N: LS-CW5110-40C
Price: $ 256
Stock: 648 in Stock
Sold: 1.2K
Product URL: https://www.l-p.com/products/495378.htm

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Compatible:: Cisco; LINK-PP; Alcatel-Lucent; Brocade; Ciena; Dell; FS; Generic; H3C; HPE; Juniper

Wavelength:: 1270nm; 1290nm; 1310nm; 1330nm; 1350nm; 1370nm; 1390nm; 1410nm; 1430nm; 1450nm; 1470nm; 1490nm; 1510nm; 1530nm; 1550nm; 1570nm; 1590nm; 1610nm

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Alcatel-Lucent LS-CW5110-40C Compatible LINK-PP 10G SFP+ Specifications

LS-CW5110-40C operates as a 10G SFP+ CWDM optical transceiver at 1510nm, integrating a cooled EML laser and PIN photodiode to enable duplex LC connectivity and support transmission distances of up to 40km over single-mode fiber, with real-time digital optical monitoring for continuous parameter visibility.

Alcatel-Lucent Part Number	LS-CW5110-40C	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1510nm	Max Cable Distance	40km
Connector	Duplex LC	Media	SMF
Transmitter Type	EML	Receiver Type	PIN
TX Power	-1 to +5dBm	RX Power	-23 to -6dBm
Receiver Sensitivity	-16dBm	DOM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	SFP+ MSA Compliant, SFF 8472,SFF 8431,802.3ae, ITU-T

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Q: Can I use this optical module with OM3 multi-mode fiber that is already installed in our building? By K***s on 2026-04-20

A: No. This LS-CW5110-40C CWDM module is designed for single-mode fiber and supports up to 40km transmission. It should not be used with OM3 or other multi-mode fiber for this application. By admin on 2026-04-21
Q: Does this LS-CW5110-40C module support live insertion? We need to replace optics during scheduled maintenance without shutting down the switch. By P***n on 2026-02-16

A: Yes. It has a hot-pluggable SFP+ form factor, so it can normally be inserted or removed while the device is powered on. Follow your switch vendor’s maintenance procedure to avoid affecting the active link. By admin on 2026-02-17
Q: Our network room is air-conditioned, but the switch can run warm. Is the commercial version okay? By F***h on 2025-09-23

A: Yes, it is generally suitable for a controlled indoor network room if the module case temperature remains between 0°C and +70°C. Monitoring the module temperature through DOM is recommended. By admin on 2025-09-24
Q: We already have a CWDM MUX with LC ports. Can this SFP module connect directly to it? By H***d on 2025-07-14

A: Yes, if the MUX includes a 1510nm CWDM channel and uses compatible duplex LC single-mode connections. Make sure the module wavelength matches the MUX channel exactly. By admin on 2025-07-15
Q: We need to carry multiple 10G services over one pair of single-mode fibers between two sites. Is this the right type of module? By J***t on 2025-03-26

A: Yes, this module is suitable for a CWDM system to carry one 10G service over the 1510nm channel. If you need to carry multiple 10G services over one fiber pair, you will need one SFP module for each CWDM wavelength (e.g., 1470nm, 1490nm, 1510nm, etc.), combined with a matching CWDM MUX/DEMUX. Ensure the same wavelength is used at both ends of the link. By admin on 2025-03-27

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M***a

Cambodia

Verified Purchase

5 .0

2026-05-18

We installed LS-CW5110-40C modules across a municipal campus network with several intermediate patch panels and a CWDM MUX/DEMUX pair at each end. Fiber-route distance was about 26km, but the actual insertion loss mattered more than the map distance, so we reviewed DOM TX and RX readings before cutover. All 1510nm 10G SFP+ links came online cleanly, with no recurring interface resets or error-counter issues during the first month. For teams maintaining wavelength-based enterprise transport, the built-in DOM monitoring is a real operational benefit.

128 Helpful vote Comments

E***y

New Zealand

Verified Purchase

5 .0

2026-05-02

Zero bit errors over our passive mux setup, definitely ordering more.

46 Helpful vote Comments

N***m

Morocco

Verified Purchase

5 .0

2026-03-14

We ordered these for a phased upgrade from separate dark-fiber links to a CWDM architecture. The goal was to carry multiple 10G services over one single-mode fiber pair while keeping a clear wavelength assignment, and the 1510nm channel filled an open slot in our plan. On test, the module’s transmit and receive levels were within expected range, the 40km specification provided enough design headroom, and no packet loss was observed in extended throughput testing. For bulk rollout, having repeatable labeling, SFP+ MSA compliance, and DOM support made inventory and troubleshooting much easier.

147 Helpful vote Comments

H***e

Ukraine

Verified Purchase

5 .0

2026-02-24

This 10G 1510nm CWDM module worked well in our data room expansion. We tested it over single-mode fiber with a long patch-panel path and saw no CRC errors during the burn-in period. The SFP+ form factor is convenient when rack space is tight.

80 Helpful vote Comments

K***e

Bulgaria

Verified Purchase

5 .0

2026-01-18

For our small data center, this was a practical way to increase capacity over existing single-mode fiber instead of pulling new cable. The 1510nm CWDM optical module fit into our channel plan and gave stable 10Gbps connectivity at a sensible cost.

121 Helpful vote Comments

R***n

Nepal

Verified Purchase

4 .0

2026-01-10

The shipment arrived safely and each LC duplex optical transceiver was sealed properly. The courier tracking did not update for a few days, which made project scheduling a little harder, but the package showed up intact.

22 Helpful vote Comments

I***y

Turkey

Verified Purchase

5 .0

2025-12-30

Bought these modules for a 10GbE fiber uplink between a warehouse and the main office. Link establishment was fast, and the DOM monitoring helped us confirm that the fiber loss was within budget. Exactly what we needed for a 40km SMF CWDM link.

97 Helpful vote Comments

P***t

Bangladesh

Verified Purchase

4 .0

2025-12-12

Packaging was generally professional, with each 40km SFP+ CWDM optical module protected separately. I would suggest stronger corner protection for bulk orders because the outer carton was slightly pressed during delivery.

26 Helpful vote Comments

F***n

Austria

Verified Purchase

5 .0

2025-11-28

Solid 10G Ethernet link on channel 1510nm, rock stable!

44 Helpful vote Comments

N***s

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2025-11-05

Our field team used this 10G 1510nm CWDM transceiver on a backhaul segment serving a distributed site. The deployment itself was indoors in a controlled network cabinet, so the listed 0–70°C commercial operating range was appropriate for the enclosure conditions. After validating the end-to-end optical budget, the duplex LC SMF connection performed consistently under normal production traffic, camera aggregation, and scheduled backups. DOM values were especially useful when comparing link health before and after cleaning a connector.

112 Helpful vote Comments

K***s

Denmark

Verified Purchase

5 .0

2025-10-15

We keep several of these 10G CWDM SFP+ modules as spares for field service. The 1510nm wavelength, 40km distance, and LC duplex interface are clearly labeled, which reduces mistakes when technicians are working with several CWDM channels.

115 Helpful vote Comments

P***n

Macao

Verified Purchase

4 .0

2025-09-26

The 10G CWDM SFP+ modules arrived in good condition and were individually protected. The outer shipping carton had a small dent from transit, but nothing inside was affected.

37 Helpful vote Comments

G***z

Finland

Verified Purchase

5 .0

2025-09-17

Our 1510nm channel came up instantly over existing single-mode fiber.

61 Helpful vote Comments

L***s

Belarus

Verified Purchase

5 .0

2025-08-21

Deployed this 40km 1510nm CWDM SFP+ transceiver into our data center multiplexer. The duplex LC connector clicked firmly into our patch panel, and our 10G link came right up at full line rate without any port flapping. Solid engineering.

102 Helpful vote Comments

I***s

Ireland

Verified Purchase

5 .0

2025-07-11

Our operations team needed a replacement 1510nm 10G SFP+ CWDM module for an existing wavelength plan. This module matched the channel, used standard duplex LC single-mode fiber, and did not require any special handling. Nice and straightforward.

78 Helpful vote Comments

E***n

Indonesia

Verified Purchase

5 .0

2025-06-12

DDM telemetry readouts are spot on in our aggregation layer.

51 Helpful vote Comments

L***t

Brunei Darussalam

Verified Purchase

5 .0

2025-06-04

We populated our 8-channel passive CWDM OADM with these modules to link remote branch offices. DOM telemetry makes it effortless to monitor optical power over SNMP. Power budget on the 1510nm lambda is totally reliable over standard single-mode fiber. (•‿•)

95 Helpful vote Comments

H***s

Romania

Verified Purchase

5 .0

2025-05-03

Installed these optical transceiver modules in a CWDM MUX/DEMUX setup for a small regional network upgrade. All modules showed up at 10Gbps immediately, and the DOM data was useful for checking TX/RX power before we handed the site over.

79 Helpful vote Comments

J***n

Hungary

Verified Purchase

5 .0

2025-04-21

This thing was ultra cheap, worked amazingly at advertised speeds and came super Fast. awesome service and support great product. will def. buy again in a heartbeat

163 Helpful vote Comments

F***l

Belgium

Verified Purchase

5 .0

2025-04-07

DOM levels report solid optical margins on single-mode patch cables.

62 Helpful vote Comments

T***t

United States

Verified Purchase

5 .0

2025-02-06

I have ordered from them for years. you can always reach someone to help you with your problem. i recommend l-p.com.

32 Helpful vote Comments

W***g

Belgium

Verified Purchase

5 .0

2025-01-31

experience was excellent from placing the order to receiving the order

80 Helpful vote Comments

G***g

United States

Verified Purchase

5 .0

2024-11-09

Just as described, shipped out in a timely manner.

105 Helpful vote Comments

M***n

Australia

Verified Purchase

5 .0

2024-11-06

Order 400GBASE-LR4 QSFP-DD from them all the time.Will continue using it in the future.

66 Helpful vote Comments

N***d

Russian Federation

Verified Purchase

5 .0

2024-10-27

The transaction and delivery went very Fast and precise.

149 Helpful vote Comments

A***i

Belarus

Verified Purchase

5 .0

2024-09-18

As a new customer, it gives me a level of confidence in your company that I didn't have the experience with you to evaluate otherwise. Great work!

86 Helpful vote Comments

J***n

United States

Verified Purchase

5 .0

2024-04-19

We didn't have any trouble ordering what we needed...very easy!

139 Helpful vote Comments

S***o

South Africa

Verified Purchase

5 .0

2024-03-16

Brilliant product, delivered earlier than originally stated and work excellent

28 Helpful vote Comments

Y***u

Ireland

Verified Purchase

5 .0

2024-02-16

Very satisfied, Very Fast on delivery and I'm sure I will need to order again soon.

36 Helpful vote Comments

B***a

South Africa

Verified Purchase

5 .0

2023-12-10

l-p.com always has what I need at the best prices. Excellent Service.

92 Helpful vote Comments

J***r

United States

Verified Purchase

5 .0

2023-12-09

I am very happy

156 Helpful vote Comments

O***n

Cambodia

Verified Purchase

5 .0

2023-11-13

The website is user friendly, I can find what I need easily. And the service is great, they answered all my questions patiently. Enjoy doing business with you!

178 Helpful vote Comments

Z***m

France

Verified Purchase

5 .0

2023-10-03

Great service, Fast shipping and great pricing.

101 Helpful vote Comments

C***s

Finland

Verified Purchase

5 .0