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.

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Ciena CWDM-SFP8-1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module

Name: Ciena CWDM-SFP8-1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 224119
Price: 42.14 USD
Availability: InStock
Rating: 4.8 (12 reviews)

# 224119

Product: Ciena CWDM-SFP8-1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module
SKU: 224119
P/N: LS-CW371G-80C
Price: $ 49
Stock: 159 in Stock
Sold: 437
Product URL: https://www.l-p.com/products/492580.htm

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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

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Ciena CWDM-SFP8-1370 Compatible LINK-PP 1G SFP Specifications

CWDM-SFP8-1370 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.

Ciena Part Number	CWDM-SFP8-1370	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

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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

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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

K***h

Russian Federation

Verified Purchase

4 .0

2026-02-04

Good protection for the actual transceivers, and each module was easy to identify after unboxing. The carton was a little scuffed from international transit, but the internal packaging did its job perfectly.

29 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

G***y

Australia

Verified Purchase

5 .0

2025-11-19

Checked each LS-CW371G-80C CWDM module on an optical power meter before sliding them into the distribution chassis. The central wavelength was pinpoint 1370nm, and optical transmit power was consistent across all units received. Excellent manufacturing consistency.

121 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

S***d

Singapore

Verified Purchase

4 .0

2025-06-18

The package was delayed briefly at customs, which was outside the supplier’s control. Once delivered, the 80km CWDM SFP modules were sealed properly and installed without any issue.

31 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

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