Can we monitor module temperature remotely to prevent failures at hot sites?

Yes. With DOM enabled, supported network equipment can report the module’s temperature and optical power levels. Your NOC can set thresholds to identify overheating, declining received power, or abnormal transmit-power readings before the link is affected.

We’re running an 8-channel CWDM MUX spanning 1470nm to 1610nm — where exactly does this optic patch in?

Patch this transceiver directly into the dedicated 1610nm channel port on your CWDM tray. Just ensure the remote end also uses a 1610nm module on its matching MUX port, as different CWDM wavelengths cannot interoperate.

We are building a CWDM ring for LTE backhaul. Is this module suitable?

Yes. It is suitable for 10Gbps CWDM optical systems and LTE-related optical links, provided the network uses the 1610nm CWDM channel and single-mode fiber.

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Ciena CWDM-SFP10G-1610 Compatible LINK-PP 10G SFP+ CWDM 1610nm 40km Duplex LC DOM SMF Optical Transceiver Module

Name: Ciena CWDM-SFP10G-1610 Compatible LINK-PP 10G SFP+ CWDM 1610nm 40km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 221954
Price: 220.16 USD
Availability: InStock
Rating: 4.9 (36 reviews)

# 221954

Product: Ciena CWDM-SFP10G-1610 Compatible LINK-PP 10G SFP+ CWDM 1610nm 40km Duplex LC DOM SMF Optical Transceiver Module
SKU: 221954
P/N: LS-CW6110-40C
Price: $ 256
Stock: 138 in Stock
Sold: 803
Product URL: https://www.l-p.com/products/495138.htm

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Compatible:: Cisco; LINK-PP; Alcatel-Lucent; Brocade; Ciena; Dell; 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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Ciena CWDM-SFP10G-1610 Compatible LINK-PP 10G SFP+ Specifications

CWDM-SFP10G-1610 10G CWDM optical module integrates a cooled 1610nm EML laser and PIN receiver into a hot-pluggable SFP+ footprint, leveraging low-dispersion optical signaling to transmit up to 40km over single-mode fiber while delivering granular real-time telemetry via digital optical monitoring (DOM).

Ciena Part Number	CWDM-SFP10G-1610	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1610nm	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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LS-CWxx10-40C 1271-1611.pdf

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Q: Can we monitor module temperature remotely to prevent failures at hot sites? By G***s on 2026-05-12

A: Yes. With DOM enabled, supported network equipment can report the module’s temperature and optical power levels. Your NOC can set thresholds to identify overheating, declining received power, or abnormal transmit-power readings before the link is affected. By admin on 2026-05-13
Q: We’re running an 8-channel CWDM MUX spanning 1470nm to 1610nm — where exactly does this optic patch in? By H***m on 2025-09-13

A: Patch this transceiver directly into the dedicated 1610nm channel port on your CWDM tray. Just ensure the remote end also uses a 1610nm module on its matching MUX port, as different CWDM wavelengths cannot interoperate. By admin on 2025-09-14
Q: We are building a CWDM ring for LTE backhaul. Is this module suitable? By F***t on 2025-03-17

A: Yes. It is suitable for 10Gbps CWDM optical systems and LTE-related optical links, provided the network uses the 1610nm CWDM channel and single-mode fiber. By admin on 2025-03-18

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M***k

Austria

Verified Purchase

5 .0

2026-05-16

We installed this 1610nm CWDM 10G SFP+ module in a campus fiber backbone connecting two office buildings about 35km apart. The Duplex LC interface matched our patching setup, and the DOM values gave our team useful TX/RX visibility from day one. No errors or flaps during the first month.

109 Helpful vote Comments

E***n

Philippines

Verified Purchase

5 .0

2026-04-10

Stable 10G CWDM 1610nm link at 36 km on SMF — plugged in and came straight up.

43 Helpful vote Comments

G***t

Denmark

Verified Purchase

5 .0

2026-04-03

Tested these 40km SFP+ optical transceivers across a passive CWDM Mux setup. Signal attenuation over our 30km single-mode run remained minimal, leaving plenty of headroom. EEPROM coding was spot-on, so our switch chassis logged zero EEPROM warning alarms upon boot.

90 Helpful vote Comments

V***n

Romania

Verified Purchase

5 .0

2026-03-01

The module’s listed TX power range and receiver monitoring made it easy to verify our fiber budget before go-live. We used it on a 33km SMF route with a few patch points, and the connection has remained steady.

72 Helpful vote Comments

R***n

Ireland

Verified Purchase

5 .0

2026-02-11

We needed a reliable 1610nm CWDM module to light up a dark fiber link between two campus sites spaced 32km apart. Plugged two of these LS-CW6110-40C 10G SFP+ CWDM modules into our core switches, and the optics initialized immediately. Tx and Rx power levels reported via DOM are well within spec, showing a clean optical budget margin. Will definitely order more for our upcoming 10G network upgrade.

115 Helpful vote Comments

C***l

Brunei Darussalam

Verified Purchase

5 .0

2026-01-08

We ordered these LS-CW6110-40C 10G SFP+ modules for a phased CWDM expansion serving several customer sites from one central communications room. Our requirements were specific: 10Gbps operation, 1610nm channel, 40 km single-mode reach, Duplex LC connector, and DOM support for remote maintenance. The optics were installed with our passive CWDM infrastructure, and the 1610nm channel was kept separate from the other active wavelengths. After deployment, the operations team used DOM readings to document initial RX power values for each circuit. That baseline has made later fiber checks more efficient, especially after third-party construction work near one route. Performance has been stable, and the modules are a good fit for indoor telecom rooms, campus aggregation, and metro-access style links where a commercial-temperature optic is appropriate.

114 Helpful vote Comments

C***n

Belarus

Verified Purchase

5 .0

2025-12-24

Our project involved consolidating several remote equipment rooms into one data center while retaining the existing single-mode fiber paths. We selected the 10G CWDM 1610nm SFP+ optical module because the 1610nm wavelength was available in our channel plan and the 40 km specification covered the longest route with reasonable margin. The modules use a Duplex LC interface, so our installation team did not need special patching changes. During validation, we monitored the reported optical levels through DOM and compared them with our baseline measurements. The readings were consistent across the shipment, and the links did not show intermittent loss-of-signal events after commissioning. This is a sensible solution for enterprise CWDM transport, remote data rooms, and long-distance 10GbE uplinks over SMF.

131 Helpful vote Comments

B***n

Malaysia

Verified Purchase

5 .0

2025-12-18

Perfect 1610nm wavelength match, linked up at full 10G line rate on our 40km fiber span right away!

83 Helpful vote Comments

S***g

Israel

Verified Purchase

5 .0

2025-11-06

Outstanding performance for regional fiber aggregation! We paired this 10G SFP+ CWDM 1610nm transceiver with our existing 18-channel CWDM multiplexer. The duplex LC connector latches smoothly and holds a tight physical alignment. Having real-time Digital Optical Monitoring functions in our monitoring platform makes link maintenance so much easier.

92 Helpful vote Comments

D***n

Morocco

Verified Purchase

4 .0

2025-10-28

Good packing overall — the module was sealed well and there was no damage to the optic or connector. I’m leaving four stars because the delivery window changed after dispatch, which affected our installation schedule slightly.

25 Helpful vote Comments

S***z

Poland

Verified Purchase

5 .0

2025-10-17

Used a pair of these 40km CWDM optical transceivers for an enterprise aggregation link over single-mode fiber. The link was established at 10Gbps immediately after cleaning the LC/UPC connectors. Optical diagnostics were especially helpful during acceptance testing.

90 Helpful vote Comments

L***s

Cambodia

Verified Purchase

5 .0

2025-08-02

We populated multiple SFP+ ports on an aggregation switch using these long-reach 1610nm CWDM modules to expand our data center interconnect capacity. The optical casing and gold-finger contacts are precision-machined, providing tight shielding and secure grounding inside high-density switch cages. Receiver sensitivity showed strong immunity to adjacent channel noise, while thermal dissipation remained very efficient inside our climate-controlled server racks. Outstanding option for engineering teams needing reliable, standards-compliant optics.

142 Helpful vote Comments

N***r

Macao

Verified Purchase

4 .0

2025-07-15

The product arrived safely and the anti-static packaging was appropriate for a 10G SFP+ CWDM optical module. Customs clearance added a few days to delivery, but the shipment was complete and correctly labeled.

19 Helpful vote Comments

R***s

Finland

Verified Purchase

5 .0

2025-07-04

We were extending a 10G uplink from our main server room to a remote warehouse and needed a 1610nm channel module. This CWDM module worked well with our CWDM MUX/DEMUX arrangement. Good choice for indoor enterprise fiber networks.

89 Helpful vote Comments

J***e

Thailand

Verified Purchase

5 .0

2025-06-12

DOM readings are clean, and the Duplex LC connection fit our existing CWDM panel perfectly.

68 Helpful vote Comments

C***n

Lithuania

Verified Purchase

5 .0

2025-05-05

We upgraded our metro ring infrastructure with these 10G CWDM transceivers to boost backhaul capacity across single-mode fiber segments. Line-rate carrier signals established instantly upon insertion without requiring manual port speed overrides. Extended bit-error-rate testing returned clean results across all validation runs, and real-time diagnostic telemetry reported accurately through our network management software. These modules have drastically lowered our per-port deployment costs while maintaining enterprise-grade signal integrity.

125 Helpful vote Comments

T***s

Bulgaria

Verified Purchase

5 .0

2025-03-30

We deployed these LS-CW6110-40C 10G 1610nm CWDM modules as part of a multi-building campus fiber refresh. The route lengths ranged from 28km to just under 35km, all on existing single-mode plant with Duplex LC patching at both ends. Before cutover, we checked DOM TX/RX power values, cleaned every connector, and confirmed the 1610nm channel allocation through the CWDM MUX/DEMUX. All links negotiated at 10Gbps and remained stable during sustained backup traffic and normal daytime application loads. The ability to review digital diagnostics from the switch interface made troubleshooting much faster than swapping optics blindly. For a commercial-temperature indoor network, this module gives us the long-reach CWDM capacity we needed without changing the fiber infrastructure.

146 Helpful vote Comments

J***d

United States

Verified Purchase

5 .0

2025-03-17

The price was competitive, so I made the purchase. new and in good packaging. I could not be happier. I will certainly purchase again from this company.

56 Helpful vote Comments

A***z

South Africa

Verified Purchase

5 .0

2025-03-09

Good optical power margin and zero link drops so far. ^_^

72 Helpful vote Comments

E***g

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2025-02-27

Quick delivery and the items very well packed. Thank you.

53 Helpful vote Comments

K***n

Poland

Verified Purchase

5 .0

2024-12-17

excellent web page, available mostly parts with low prices

16 Helpful vote Comments

E***z

United Kingdom

Verified Purchase

5 .0

2024-06-15

I am very pleased with the quality

67 Helpful vote Comments

D***U

United States

Verified Purchase

5 .0

2024-05-26

This order was shipped very quickly and arrived in excellent order without any issues.

54 Helpful vote Comments

R***y

Belgium

Verified Purchase

5 .0

2024-05-21

Prompt and efficient service.

21 Helpful vote Comments

x***n

Australia

Verified Purchase

5 .0

2024-05-17

The only thing I would change about your website is maybe better descriptions or pictures of the product.

48 Helpful vote Comments

R***n

France

Verified Purchase

5 .0

2024-05-09

No issues so far and can see an obvious improvement with network speeds.

38 Helpful vote Comments

J***i

Portugal

Verified Purchase

5 .0

2024-04-14

Very quick order processing, order was exactly as described.

54 Helpful vote Comments

J***k

Russian Federation

Verified Purchase

5 .0

2024-04-07

Order came complete and in a timely manner.

72 Helpful vote Comments

J***n

Bangladesh

Verified Purchase

5 .0

2024-01-23

Good site. Simple to use, fair price, on time delivery.

52 Helpful vote Comments

E***n

Mexico

Verified Purchase

5 .0

2024-01-13

I've always been satisfied with the selection and prices you guys offer. You guys ROCK!

88 Helpful vote Comments

J***d

Thailand

Verified Purchase

5 .0

2023-12-28

Excellent price and easy website. just placed the order so I can't comment on delivery yet.

43 Helpful vote Comments

E***n

Japan

Verified Purchase

5 .0

2023-12-18

Working with l-p.com was a pleasure. The service was great and the Optical Transceiver Module was beyond my expectations. Extremely satisfied. Thank you.

34 Helpful vote Comments

N***g

United States

Verified Purchase

5 .0

2023-11-01

The 10/25/40G Transceiver Modules came to me soon and they all worked well with my devices. Thanks a lot! I will definitely buy from you again!

39 Helpful vote Comments

G***o

Denmark

Verified Purchase

5 .0