Can this 1270nm CWDM SFP+ module work in a Cisco switch with an existing 40km single-mode fiber link?

Yes, the product page lists Cisco compatibility, and the module is designed as a 10G SFP+ CWDM optic with a 1270nm wavelength, Duplex LC interface and SMF support up to 40km. For a production deployment, we would still recommend confirming the exact Cisco switch model and required CWDM channel before ordering.

We are putting optics in outdoor cabinets. Does the industrial version actually support wide temperature conditions, and can we monitor the optic remotely?

Yes. The specified operating case temperature is -40 to +85°C. The module also supports real-time digital diagnostic monitoring, including temperature, supply voltage, bias current, TX optical power and RX optical power, which is useful for remote NOC monitoring and field maintenance.

Does the module support standard 10G applications, or is it only intended for CWDM networks?

It is designed for 10G CWDM optical systems and also lists 10GBASE-ZR at 10.3125Gbps, 10GBASE-ZW at 9.953Gbps and LTE systems among its applications. The module supports up to 10.7Gbps, uses a hot-pluggable SFP+ footprint and complies with SFP+ MSA and SFF-8472.

Breadcrumb: Home; Products; Optics Transceivers | SFP Modules; 10/25/40G/100G Transceiver Modules; 10G CWDM/DWDM SFP+; 223832

Click to open expanded view

Ciena CWDM-SFP10G-1270-I Compatible LINK-PP 10G SFP+ CWDM 1270nm 40km DOM Duplex LC SMF Optical Transceiver Module (Industrial)

Name: Ciena CWDM-SFP10G-1270-I Compatible LINK-PP 10G SFP+ CWDM 1270nm 40km DOM Duplex LC SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 223832
Price: 176.3 USD
Availability: InStock
Rating: 5 (23 reviews)

# 223832

Product: Ciena CWDM-SFP10G-1270-I Compatible LINK-PP 10G SFP+ CWDM 1270nm 40km DOM Duplex LC SMF Optical Transceiver Module (Industrial)
SKU: 223832
P/N: LS-CW2710-40I
Price: $ 205
Stock: 1155 in Stock
Sold: 1.8K
Product URL: https://www.l-p.com/products/495111.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

23 Reviews

3 Questions

Request Stock

1.8K Sold

$ 205

Free shipping over $600, If you need a more favorable price, please contact us directly.

Qty (pcs) :

Unit Price :

$ 205

100

$ 194.75

1000

$ 188.6

3000

$ 182.45

6000

$ 176.3

Manufacture: LINK-PP

P/N: LS-CW2710-40I

Compatible:: Cisco; LINK-PP; 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

Shipping:

To Be Negotiated

Free Shipping

Can't deliver

to United States via {{now_chooseship?now_chooseship.name:''}}

Estimated delivery time : {{now_chooseship?now_chooseship.datemin:''}}-{{now_chooseship?now_chooseship.datemax:''}} days. See details

5-Year Warranty 30-Day Returns 30-Day Exchange

Stock:

{{parseInt(detail_data.left_num) ? detail_data.left_num +' in Stock' :detail_data.zeroStockOrder==0?'Out of Stock':'Available'}} .

Quantity:

( Min. Order {{detail_data.prodInfo.minimum_ordered_quantity}} )

undeliverable

Total Price:

{{ detail_data.displayed_price.unit_prefix }} {{ detail_data.displayed_price.original_total_price }} ( {{ detail_data.displayed_price.rate_of_discount }}% OFF ) {{detail_data.displayed_price.ex_sell_type}}

Add to wish

Specifications

Specification
Videos
Matching Products
Download
Q&A
Customer Reviews

Ciena CWDM-SFP10G-1270-I Compatible LINK-PP 10G SFP+ Specifications

The Ciena CWDM-SFP10G-1270-I Compatible LINK-PP 10G SFP+ optical transceiver module supports data rates of up to 10.7Gbps over single-mode fiber (SMF) and has a transmission range of up to 40km at a wavelength of 1270nm.

Ciena Part Number	CWDM-SFP10G-1270-I	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1270nm	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	-40 to 85°C	Protocols	SFP+ MSA, CPRI, eCPRI, SFF-8431, SFF-8472, RoHS, ITU-T G.652

Videos

Matching Products

Pictures

ID#

Description

Price

Stock

Add to Cart

Download

Product Drawing

PDF
LS-CWxx10-40I 1270-1610.pdf

Questions & Answers
Ask a Question

No data

Q: Can this 1270nm CWDM SFP+ module work in a Cisco switch with an existing 40km single-mode fiber link? By J***s on 2026-06-15

A: Yes, the product page lists Cisco compatibility, and the module is designed as a 10G SFP+ CWDM optic with a 1270nm wavelength, Duplex LC interface and SMF support up to 40km. For a production deployment, we would still recommend confirming the exact Cisco switch model and required CWDM channel before ordering. By admin on 2026-06-16
Q: We are putting optics in outdoor cabinets. Does the industrial version actually support wide temperature conditions, and can we monitor the optic remotely? By J***s on 2025-07-28

A: Yes. The specified operating case temperature is -40 to +85°C. The module also supports real-time digital diagnostic monitoring, including temperature, supply voltage, bias current, TX optical power and RX optical power, which is useful for remote NOC monitoring and field maintenance. By admin on 2025-07-28
Q: Does the module support standard 10G applications, or is it only intended for CWDM networks? By I***n on 2025-05-17

A: It is designed for 10G CWDM optical systems and also lists 10GBASE-ZR at 10.3125Gbps, 10GBASE-ZW at 9.953Gbps and LTE systems among its applications. The module supports up to 10.7Gbps, uses a hot-pluggable SFP+ footprint and complies with SFP+ MSA and SFF-8472. By admin on 2025-05-18

Customer Reviews
Write a Review

{{stardata.star}}

{{comment.count}} reviews
5 Stars

{{comment.star5}}%

4 Stars

{{comment.star4}}%

3 Stars

{{comment.star3}}%

2 Stars

{{comment.star2}}%

1 Star

{{comment.star1}}%

All Reviews ({{comment.star_num?comment.star_num:comment.count}})

All Reviews

5 stars only

4 stars only

3 stars only

2 stars only

1 star only
Reviews with Pictures ( {{comment.pic_comment}} )
See All Reviews

No data

A***n

Macao

Verified Purchase

5 .0

2025-12-31

Our team tested the LS-CW2710-40I with several multi-vendor switches before approving it for production. Cisco, Juniper and Dell platforms all established the expected 10G connection in our test matrix. Optical diagnostics were readable, and we had no packet-loss issues during extended traffic testing.

13 Helpful vote Comments

N***s

Malaysia

Verified Purchase

5 .0

2025-12-30

Good value for long-distance 10G.

46 Helpful vote Comments

N***s

Brunei Darussalam

Verified Purchase

5 .0

2025-09-23

I bought these for a 10G fiber connection between a main office and a remote facility. The link came up immediately, and DOM gave us enough information to verify the optical condition without connecting a separate test instrument. Very practical for field support. :-)

65 Helpful vote Comments

S***n

Philippines

Verified Purchase

5 .0

2025-05-27

We deployed a batch of LS-CW2710-40I modules across a mixed Cisco and HPE environment. The SFP+ ports recognized them without any issues, and the 10Gbps links stayed stable during several days of traffic testing. For a 40km single-mode fiber run, these have been very reliable.

45 Helpful vote Comments

A***z

United Arab Emirates

Verified Purchase

5 .0

2025-05-02

We used these for a 10G CWDM link between two campus buildings. The 1270nm wavelength matched our existing CWDM plan, and the Duplex LC SMF connection came up immediately on the switch. DOM readings were also visible, which made commissioning much easier.

13 Helpful vote Comments

S***s

Argentina

Verified Purchase

4 .0

2025-03-08

The shipment arrived a day later than our original expectation, and one package had a slightly dented outer box. The modules were protected inside and worked correctly after installation. Performance on the 10G 40km SMF link has been fine, so the issue was only with delivery/packaging.

14 Helpful vote Comments

E***z

Finland

Verified Purchase

5 .0

2024-12-21

No issues so far. ;)

48 Helpful vote Comments

R***l

Iran, Islamic Republic of

Verified Purchase

5 .0

2024-12-18

Deployed in a network cabinet where temperatures can fluctuate significantly. The industrial temperature specification was important for us, and the modules remained stable through the environmental test. The 40km SMF reach also gives us useful headroom for future site expansion.

60 Helpful vote Comments

N***n

Japan

Verified Purchase

5 .0

2024-08-20

We needed a long-reach 10G SFP+ transceiver for a campus fiber backbone without replacing the existing SMF. The 1270nm CWDM wavelength worked with our channel plan, and the 40km rating gave us plenty of margin for the actual link distance. Installation was straightforward.

93 Helpful vote Comments

B***s

Brazil

Verified Purchase

5 .0

2024-07-06

We use CWDM to carry multiple wavelengths over the same single-mode fiber infrastructure. This 1270nm SFP+ module integrated cleanly into the existing setup and maintained a stable 10G link. The SFF-8472 diagnostics are useful for our NOC team because we can monitor optic health remotely.

86 Helpful vote Comments

W***r

Austria

Verified Purchase

5 .0

2024-06-09

Solid 40km link. :)

77 Helpful vote Comments

K***t

Taiwan, Province of China

Verified Purchase

5 .0

2024-04-27

For a regional network upgrade, we needed 10G CWDM optics that could work across different OEM switch platforms. These modules made the procurement much easier because we could standardize the same optic across multiple compatible environments. The DOM readings are also helpful when monitoring fiber attenuation and receive levels.

64 Helpful vote Comments

V***c

Singapore

Verified Purchase

5 .0

2024-03-06

no issue so far on the item.

49 Helpful vote Comments

S***n

Bangladesh

Verified Purchase

5 .0

2024-02-19

They have had all the parts i have needed and shipped them out right away with no delay.

53 Helpful vote Comments

E***l

France

Verified Purchase

5 .0

2024-02-10

Reliable module.

19 Helpful vote Comments

G***s

Ireland

Verified Purchase

5 .0

2024-01-24

We installed a pair on a long campus fiber route connecting an aggregation switch to a remote building. The 1270nm wavelength and Duplex LC interface matched our existing CWDM equipment, so there was no need to change the fiber plant. Link stability has been excellent under normal production traffic.

14 Helpful vote Comments

S***n

Norway

Verified Purchase

5 .0

2023-10-30

I spent a lot of time looking at the 1000 Base-T Optical Transceiver Module and finally decided on l-p.com. The website was very well done so that eased my mind a bit. When the 1000 Base-T Optical Transceiver Module arrived I was pleased that they looked just as good as it did on the website and worked without problem.

71 Helpful vote Comments

P***s

Ireland

Verified Purchase

5 .0

2023-09-02

Very surprised with the Fast shipping. Great shopping experience with LINK-PP!

82 Helpful vote Comments

B***g

Malaysia

Verified Purchase

5 .0

2023-08-16

The price was low but the quality was better than expected. They were an excellent value for my money. Highly recommend!

51 Helpful vote Comments

M***S

United States

Verified Purchase

5 .0

2023-07-28

That was easy no fuss no muss THANK YOU.

23 Helpful vote Comments

S***n

Cambodia

Verified Purchase

5 .0

2023-05-20

Very quick turn around in time.

92 Helpful vote Comments

G***e

Germany

Verified Purchase

5 .0

2023-03-12

I needed the sfp cage quickly. Did not want to spend a whole lot of time trying to muddle through a complicated website looking for what I wanted. LINK-PP did just that. Up to this point I did not have a favorite site for my needs. Now I do.

76 Helpful vote Comments

T***i

Philippines

Verified Purchase

5 .0

2023-02-24

I have used them immediately upon receipt. They work great and I will be placing an order for more soon I hope. Once I move into my new location and need to do a little rewiring.

100 Helpful vote Comments