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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Brocade E1MG-CWDM80-1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module

Name: Brocade E1MG-CWDM80-1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 224118
Price: 42.14 USD
Availability: InStock
Rating: 5 (11 reviews)

# 224118

Product: Brocade E1MG-CWDM80-1370 Compatible LINK-PP 1G SFP CWDM 1370nm 80km Duplex LC DOM SMF Optical Transceiver Module
SKU: 224118
P/N: LS-CW371G-80C
Price: $ 49
Stock: 134 in Stock
Sold: 430
Product URL: https://www.l-p.com/products/492574.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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Brocade E1MG-CWDM80-1370 Compatible LINK-PP 1G SFP Specifications

E1MG-CWDM80-1370 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.

Brocade Part Number	E1MG-CWDM80-1370	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

M***n

India

Verified Purchase

5 .0

2026-03-30

We used this 1G 1370nm CWDM SFP to extend a connection between two office sites over existing single-mode fiber. The 80km rating gave us enough margin for our route, and the DOM values were visible from day one. Great fit for a practical enterprise fiber network build.

96 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

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

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

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