Our fiber route uses duplex LC patch panels, but the trunk cable is an older OS1 single-mode cable. Is that compatible?

Yes, the module has a duplex LC receptacle and is designed for single-mode fiber links. OS1 single-mode fiber is generally suitable, provided that the fiber condition, connector quality, and total optical loss are within the link budget.

We are building a CWDM ring with several wavelengths on the same fiber pair. Can this 1370nm 1G SFP module connect directly to a CWDM MUX/DEMUX?

Yes, this 1370nm CWDM SFP is intended for CWDM wavelength-division applications and can be used with a compatible CWDM MUX/DEMUX. Make sure the multiplexer has a matching 1370nm channel and that the overall system loss, including MUX/DEMUX insertion loss, remains within the optical budget.

Does DOM allow us to monitor module temperature remotely and identify heat-related issues before a link goes down?

Yes. This LS-CW371G-80C SFP module supports Digital Optical Monitoring under SFF-8472. If your switch or NMS supports DOM reading, you can monitor parameters such as module temperature, supply voltage, transmit optical power, and receive optical power to help identify abnormal operating conditions.

Breadcrumb: Home; Products; Optics Transceivers | SFP Modules; 1/2/4G Transceiver Modules; 1G CWDM/DWDM SFP; 224123

Click to open expanded view

Juniper EX-SFP-GE80KCW1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module

Name: Juniper EX-SFP-GE80KCW1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 224123
Price: 42.14 USD
Availability: InStock
Rating: 5 (14 reviews)

# 224123

Product: Juniper EX-SFP-GE80KCW1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module
SKU: 224123
P/N: LS-CW371G-80C
Price: $ 49
Stock: 164 in Stock
Sold: 466
Product URL: https://www.l-p.com/products/492572.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

14 Reviews

3 Questions

Request Stock

466 Sold

$ 49

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

Qty (pcs) :

Unit Price :

$ 49

100

$ 46.55

1000

$ 45.08

3000

$ 43.61

6000

$ 42.14

Manufacture: LINK-PP

P/N: LS-CW371G-80C

Compatible:: Cisco; LINK-PP; Arista; Brocade; Ciena; Dell; Extreme; Juniper; Netgear

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

Juniper EX-SFP-GE80KCW1370 Compatible LINK-PP 1G SFP Specifications

EX-SFP-GE80KCW1370 operates as a 1370nm CWDM SFP module, delivering 1Gbps data rates via a DFB laser and PIN photodiode, while supporting up to 80km transmission over single-mode fiber within a 0 to +70°C temperature range. Real-time digital optical monitoring is embedded for precise tracking of Tx/Rx power, bias current, temperature, and voltage, ensuring full visibility into link health.

Juniper Part Number	EX-SFP-GE80KCW1370	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1370nm	Max Cable Distance	80km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-1 to +4dBm	RX Power	-26 to -1dBm
Receiver Sensitivity	-26dBm	Receiver Overload	-1dBm
EMC (Electro Magnetic Comnatihilitv)	Supported	DOM	Supported
Operating Temperature Range	0 to 70°C	Protocols	SFP MSA、SFF-8472

Videos

Matching Products

Pictures

ID#

Description

Price

Stock

Add to Cart

Download

Product Drawing

PDF
LS-CWxx1G-80x.pdf

Questions & Answers
Ask a Question

No data

Q: Our fiber route uses duplex LC patch panels, but the trunk cable is an older OS1 single-mode cable. Is that compatible? By J***l on 2026-03-30

A: Yes, the module has a duplex LC receptacle and is designed for single-mode fiber links. OS1 single-mode fiber is generally suitable, provided that the fiber condition, connector quality, and total optical loss are within the link budget. By admin on 2026-03-31
Q: We are building a CWDM ring with several wavelengths on the same fiber pair. Can this 1370nm 1G SFP module connect directly to a CWDM MUX/DEMUX? By E***d on 2025-11-02

A: Yes, this 1370nm CWDM SFP is intended for CWDM wavelength-division applications and can be used with a compatible CWDM MUX/DEMUX. Make sure the multiplexer has a matching 1370nm channel and that the overall system loss, including MUX/DEMUX insertion loss, remains within the optical budget. By admin on 2025-11-03
Q: Does DOM allow us to monitor module temperature remotely and identify heat-related issues before a link goes down? By O***s on 2025-06-09

A: Yes. This LS-CW371G-80C SFP module supports Digital Optical Monitoring under SFF-8472. If your switch or NMS supports DOM reading, you can monitor parameters such as module temperature, supply voltage, transmit optical power, and receive optical power to help identify abnormal operating conditions. By admin on 2025-06-10

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

D***r

United Arab Emirates

Verified Purchase

5 .0

2026-04-11

Stable 1370nm CWDM SFP for our 68km single-mode fiber link — plugged in and linked right away.

60 Helpful vote Comments

Q***s

Canada

Verified Purchase

5 .0

2026-04-03

Installed these 1G SFP optical modules in our indoor server room environment. The commercial-grade thermal management holds up nicely, keeping operating temperatures consistently stable even with all adjacent SFP ports fully loaded. Hot-swapping was completely seamless.

91 Helpful vote Comments

D***n

Norway

Verified Purchase

5 .0

2026-02-27

We needed a 1370nm single-mode SFP for a remote network cabinet connected to an indoor core room through a long metropolitan fiber route. The site was still within commercial operating conditions, but it experienced regular daytime temperature changes. This 1G CWDM optic maintained steady optical readings and clean connectivity throughout our monitoring period. The 80km distance capability also gave us enough allowance for connector loss, fusion splices, and future maintenance margin.

98 Helpful vote Comments

I***e

United Kingdom

Verified Purchase

5 .0

2026-01-22

Replaced some failed OEM modules on our edge aggregation layer with these units. They integrated cleanly with standard 9/125um G.652 single-mode fiber patch cables and established full-rate Gigabit Ethernet links right away. Solid performance at a fraction of the cost.

102 Helpful vote Comments

K***n

Netherlands

Verified Purchase

5 .0

2025-12-21

We deployed 24 LS-CW371G-80C CWDM modules across a municipal campus fiber network using 1370nm as one channel in a passive CWDM system. The longest live route is just under 67km including patch panels and splices, so the 80km optical budget was the right class for the job. Every module established a stable 1.25Gbps link over single-mode fiber, and DOM monitoring let us compare transmit and receive levels before and after the cutover. That made fault isolation much easier than working with non-DDM optics.

122 Helpful vote Comments

P***y

Italy

Verified Purchase

5 .0

2025-10-29

Our operations team used this 80km CWDM SFP during a fiber resilience project between two production facilities. We ran acceptance tests with long-duration traffic, link-state monitoring, and repeated module reseating before putting the circuit into service. The Duplex LC interface was convenient for our existing patch frames, and all modules reported normal temperature, voltage, TX power, and RX power through the switch diagnostics. No intermittent alarms or unstable links after deployment.

135 Helpful vote Comments

S***y

Republic of Korea

Verified Purchase

5 .0

2025-09-09

This 1370nm CWDM SFP module worked well for a long-distance monitoring link between our main server room and a remote utility building. We specifically needed DOM support for ongoing optical checks, and the TX/RX diagnostics are easy to review during maintenance.

94 Helpful vote Comments

U***a

Germany

Verified Purchase

5 .0

2025-08-14

We deployed four of these 1370nm CWDM modules into passive optical Mux units to tie remote campus buildings back to the main data center. Optical return loss is minimal, and the link stayed steady throughout our overnight throughput stress tests. Very impressed with the build quality.

119 Helpful vote Comments

W***s

Brazil

Verified Purchase

5 .0

2025-07-28

A lot of 3rd party CWDM modules have messy DOM implementations, but these report accurate voltage, current, and dBm levels straight into our CLI. Makes remote troubleshooting a breeze for our NOC team.

83 Helpful vote Comments

C***y

France

Verified Purchase

5 .0

2025-05-09

Using this 80km SFP CWDM module on our regional wireless tower relay link. The 1370nm wavelength keeps crosstalk non-existent across our 8-channel passive CWDM setup. Even during peak daytime traffic, latency and jitter remain completely flat.

130 Helpful vote Comments

F***m

Spain

Verified Purchase

5 .0

2025-04-01

We installed these LS-CW371G-80C 1370nm CWDM SFP modules for a regional security network connecting several remote camera aggregation sites back to the control center. Most paths were between 52km and 68km over single-mode fiber, with passive CWDM equipment already in place. The 1.25Gbps links stayed stable during continuous video traffic, and the DOM data gave our NOC useful visibility into optical receive levels. Great option for extending legacy 1G infrastructure without adding new fiber pairs.

148 Helpful vote Comments

E***r

Japan

Verified Purchase

5 .0

2025-03-19

Clean duplex LC connection, tight optical alignment, and temps stay under 45°C in the rack.

55 Helpful vote Comments

D***e

Mexico

Verified Purchase

5 .0

2025-02-11

Bought several LS-CW371G-80C SFP modules for a small CWDM ring in an industrial park. All units came up at 1.25Gbps with duplex LC patch leads, and the optical power readings looked consistent across the batch. No link flaps after a few weeks of operation.

138 Helpful vote Comments

N***s

United States

Verified Purchase

5 .0

2025-01-22

Solid optical budget, recognized by our core distribution switches without throwing unsupported transceiver warnings.

68 Helpful vote Comments