Can this module be connected to multi-mode fiber in our older building network?

No. This 1G CWDM SFP module is designed for single-mode fiber, not multi-mode fiber. For multi-mode links, you would need a different 1G SFP model designed for the required fiber type and distance.

We need a small trial order before placing a large purchase order. Can we test a few units first?

Yes, a sample order is a practical way to validate switch recognition, DOM readings, optical budget, and MUX/DEMUX channel matching before a larger rollout. Please confirm the required compatibility coding for the sample modules.

Can DOM help us identify a dirty LC connector before the link goes down?

Yes. A gradual drop in received optical power shown through DOM may indicate connector contamination, fiber bending, aging patch cords, or increasing splice loss. It can help engineers investigate the link before it fails completely.

Our SAN uses 1.063Gbps Fibre Channel links between two storage switches. Can this 1390nm CWDM SFP be used for that application?

Sí. La LINK-PP LS-CW391G-80C supports 1.063Gbps Fibre Channel and can be used for long-distance SAN connections over single-mode fiber. Please also confirm the required vendor coding for your Fibre Channel switch model.

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LINK-PP Módulo transceptor óptico LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF

Name: LINK-PP Módulo transceptor óptico LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF
Brand: LINK-PP
SKU: 203118
Price: 42.14 USD
Availability: InStock
Rating: 4.9 (30 reviews)

# 203118

Producto: LINK-PP Módulo transceptor óptico LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF
(SKU): 203118
P / N: LS-CW391G-80C
Precio: $49
Stock: 55 en existencia
Vendido: 335
URL del producto: https://www.l-p.com/products/492584.htm

Para pedidos superiores a $1000, obtenga $15.00 de descuento. , Código: Linkpp15

Para pedidos superiores a $3000, obtenga $50.00 de descuento. , Código: Linkpp50

Para pedidos superiores a $5000, obtenga $100.00 de descuento. , Código: Linkpp100

Nuevos usuarios: Cupón de $10 para pedidos , Código: linkpp2610

: LINK-PP Módulo transceptor óptico LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF

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

Longitud de onda:: 1270nm; 1290nm; 1310nm; 1330nm; 1350nm; 1370nm; 1390nm; 1410nm; 1430nm; 1450nm; 1470nm; 1490nm; 1510nm; 1530nm; 1550nm; 1570nm; 1590nm; 1610nm

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LINK-PP Especificaciones del módulo SFP LS-CW391G-80C de 1G

LS-CW391G-80C 1390nm CWDM SFP module achieves 1Gbps transmission distances of up to 80km over single-mode fiber, using a DFB laser source and a PIN receiver, while its 0 to 70°C operating range covers standard commercial environments. Built-in digital optical monitoring function enables real-time access to Tx/Rx optical power, laser bias current, operating temperature, and supply voltage.

LINK-PP Número de refacción	LS-CW391G-80C	Nombre del vendedor	LINK-PP
Factor de forma	SFP	Velocidad de datos máxima	1.25Gbps
Longitud de onda	1390nm	Distancia máxima del cable	80km
Conector	LC dúplex	Medios	SMF
Tipo de transmisor	DFB	Tipo de receptor	Código Postal
Poder TX	-1 a + 4dBm	Potencia RX	-26 a -1dBm
Sensibilidad del receptor	-26dBm	receptor de sobrecarga	-1dBm
EMC (comunicación electromagnética)	Soportado	DOM	Soportado
Rango de temperatura de funcionamiento	0 a 70 ° C	Protocolos	SFP MSA, SFF-8472

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Q: Can this module be connected to multi-mode fiber in our older building network? Por D***n on 2026-03-11

A: No. This 1G CWDM SFP module is designed for single-mode fiber, not multi-mode fiber. For multi-mode links, you would need a different 1G SFP model designed for the required fiber type and distance. Por admin on 2026-03-12
Q: We need a small trial order before placing a large purchase order. Can we test a few units first? Por E***w on 2026-01-06

A: Yes, a sample order is a practical way to validate switch recognition, DOM readings, optical budget, and MUX/DEMUX channel matching before a larger rollout. Please confirm the required compatibility coding for the sample modules. Por admin on 2026-01-07
Q: Can DOM help us identify a dirty LC connector before the link goes down? Por F***e on 2025-11-27

A: Yes. A gradual drop in received optical power shown through DOM may indicate connector contamination, fiber bending, aging patch cords, or increasing splice loss. It can help engineers investigate the link before it fails completely. Por admin on 2025-11-28
Q: Our SAN uses 1.063Gbps Fibre Channel links between two storage switches. Can this 1390nm CWDM SFP be used for that application? Por B***e on 2025-08-30

A: Sí. La LINK-PP LS-CW391G-80C supports 1.063Gbps Fibre Channel and can be used for long-distance SAN connections over single-mode fiber. Please also confirm the required vendor coding for your Fibre Channel switch model. Por admin on 2025-08-31

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B *** d

Emiratos Árabes Unidos

Compra verificada

5 .0

2026-06-25

This is a practical 1390nm CWDM 1G SFP module for legacy aggregation switches that still need long-distance optical links. TX/RX power levels looked healthy from day one, and the Duplex LC interface made replacement straightforward.

71 Voto útil Comentarios

Delaware

Italia

Compra verificada

5 .0

2026-06-19

Commissioned 20 units of these 80km 1390nm CWDM transceivers for a wireless cell site backhaul aggregation project. The primary requirement was stable physical layer signal integrity across long optical paths without active amplification. The DFB laser stability on these optics is impressive — zero channel bleed-over to adjacent wavelengths (1370nm/1410nm) on our multiplexer. The duplex LC receptacles feature high-precision internal alignment sleeves, keeping insertion loss below 0.2dB per connection point. Operating in our climate-controlled indoor POP shelters, operating temperatures sit steadily around 36°C.

105 Voto útil Comentarios

Z *** n

Bangladesh

Compra verificada

5 .0

2026-06-11

We used the LS-CW391G-80C CWDM SFP module to extend a 1GbE connection between two campus buildings over single-mode fiber. The 1390nm channel matched our CWDM MUX setup, and both ends linked without any tuning or special configuration.

72 Voto útil Comentarios

U *** e

Lituania

Compra verificada

5 .0

2026-05-13

No alarms, no CRC errors, just stable service.

56 Voto útil Comentarios

L *** t

Brazil

Compra verificada

5 .0

2026-05-04

Solid 80km CWDM SFP optical transceiver. Replaced expensive first-party OEM modules on our distribution layer switches without any microcode rejections or port errors. Highly recommended! \ (•◡•) /

98 Voto útil Comentarios

G k

Francia

Compra verificada

5 .0

2026-04-26

Good choice when you need an 80km CWDM SFP rather than a standard 1310nm gray optic. The DFB CWDM laser provides a clean fit for our passive CWDM transport design, and the price is reasonable for project quantities.

93 Voto útil Comentarios

X *** n

Maldivas

Compra verificada

5 .0

2026-03-25

Clean optical budget for our regional campus link, works like a charm.

57 Voto útil Comentarios

R *** k

República de Corea

Compra verificada

5 .0

2026-03-16

Installed a batch in a managed network supporting remote access cabinets connected back to an indoor aggregation room. Although the optics are commercial temperature rated, the modules are located in climate-controlled equipment areas, and the long single-mode runs are entirely within the 80km design target. The DFB transmitter and PIN receiver combination gave stable receive levels over the route, and the 1.25Gbps throughput is exactly right for the existing access layer. We also appreciate that the modules conform to SFP MSA and support DOM, since our NOC can trend optical levels instead of waiting for a service incident. This is the kind of low-drama optic operations teams want.

117 Voto útil Comentarios

Q***k

Bielorrusia

Compra verificada

5 .0

2026-02-22

Plugged in cleanly and the 80km 1390nm CWDM link came up right away.

60 Voto útil Comentarios

J *** e

Canada

Compra verificada

5 .0

2026-02-18

We added this 1390nm SFP module into our passive CWDM multiplexer grid to expand backhaul capacity without trenching new fiber. The duplex LC interface clicked firmly into the patch panel. Solid build quality!

75 Voto útil Comentarios

E *** r

Reino Unido

Compra verificada

5 .0

2026-01-20

Used for a 1.25Gbps point-to-point link over an approximately 60km single-mode route. The optical margin was comfortable, and we have not seen packet loss or interface flaps after several weeks of production traffic.

102 Voto útil Comentarios

F *** n

Norway

Compra verificada

4 .0

2026-01-07

Our package was held briefly by the carrier before final delivery, so the project schedule moved by two days. Once received, the Duplex LC optics passed our incoming inspection without any problems.

24 Voto útil Comentarios

D *** x

Libia

Compra verificada

5 .0

2025-12-06

Our operations team likes the DOM support because we can check temperature, voltage, laser bias, transmit power, and receive power remotely. It makes preventive maintenance much easier than using non-DOM optics.

127 Voto útil Comentarios

K *** h

Australia

Compra verificada

5 .0

2025-11-14

Good performance for the price point. Optical link came up cleanly at full gigabit speed through our patch bays. It’s hard to beat this optical power budget when working on tight IT budgets.

86 Voto útil Comentarios

T *** r

Camboya

Compra verificada

5 .0

2025-10-26

Good optical budget for our long single-mode fiber run.

53 Voto útil Comentarios

C *** h

Suecia

Compra verificada

5 .0

2025-10-17

For a data-center-to-campus extension project, we needed a proven 1390nm CWDM transceiver that would work over existing single-mode fiber and LC patching. The LS-CW391G-80C did exactly that. We installed it as a 1.25Gbps uplink, confirmed the correct 1390nm channel through the passive CWDM infrastructure, and monitored DOM values through our normal network-management workflow. No special configuration was needed beyond selecting the correct compatibility version during procurement. It is a good fit for enterprise backbone, metro Ethernet, and indoor telecom-room applications where a 1G CWDM 80km SFP is required.

128 Voto útil Comentarios

Hora

Estados Unidos

Compra verificada

5 .0

2025-09-30

We used this 1390nm 1G CWDM transceiver for a remote equipment-room uplink. Installation took only a few minutes: clean the LC connectors, insert the optic, verify DOM readings, and bring the service online. Easy job.

80 Voto útil Comentarios

Y *** n

Nepal

Compra verificada

5 .0

2025-08-25

Genuine 80km reach with zero packet loss on our CWDM Mux channel.

63 Voto útil Comentarios

P *** y

Mexico

Compra verificada

5 .0

2025-08-11

Our team needed to reuse a limited pair of single-mode fibers between a central data room and several remote utility sites. We selected multiple CWDM wavelengths and used the 1390nm LS-CW391G-80C for one of the longer 1.25G services. The Duplex LC format integrated directly with our fiber distribution frame, while the SFF-8472 digital diagnostics were available through the switch CLI for normal monitoring. We checked laser TX power, RX power, temperature, and voltage during commissioning, then set alert thresholds based on the measured baseline. The modules have performed consistently and saved us from installing additional outside-plant fiber.

123 Voto útil Comentarios

C *** s

Irán, República Islámica de

Compra verificada

5 .0

2025-07-09

We installed these in a multi-wavelength campus backbone where fiber count is limited. The 1390nm CWDM channel helped us add another service without pulling new SMF. Link quality has been clean so far.

88 Voto útil Comentarios

R *** g

Brunei Darussalam

Compra verificada

5 .0

2025-06-14

Affordable 1390nm CWDM SFP transceivers that just get the job done.

43 Voto útil Comentarios

I *** r

Japan

Compra verificada

5 .0

2025-06-01

Great option for remote campus distribution nodes. These 1G CWDM SFP modules operate well within standard 0°C to 70°C commercial limits, keeping switch fan speeds low and stable.

100 Voto útil Comentarios

E *** l

España

Compra verificada

4 .0

2025-05-06

The product boxes were slightly compressed in the shipping carton, likely from international handling. Fortunately, the antistatic bags and LC dust caps were intact, and all units worked perfectly.

29 Voto útil Comentarios

S *** e

Netherlands

Compra verificada

5 .0

2025-04-19

We used these SFP transceivers for a phased refresh of older 1G CWDM uplinks in a regional enterprise network. Before rollout, we tested samples across our standard equipment inventory, validated DOM visibility, and measured optical power after the CWDM MUX, patch cords, and field fiber were included. The 1390nm channel stayed within the expected budget, and the modules did not show unusual temperature or bias-current behavior during burn-in. In production, they have supported normal enterprise traffic without errors or unexpected resets.

140 Voto útil Comentarios

W *** n

macao

Compra verificada

5 .0

2025-04-04

Reliable 1390nm SFP CWDM module for metro fiber extension.

65 Voto útil Comentarios

F *** h

Alemania

Compra verificada

5 .0

2025-03-05

The module works well in a mixed-vendor environment after selecting the appropriate compatibility option. We tested it on several standard SFP ports used in enterprise and carrier access equipment, and the link negotiation was smooth.

96 Voto útil Comentarios

Argentina

Compra verificada

5 .0

2025-02-24

Bought a small batch for a regional fiber network refresh. The modules seated properly, reported DDM values, and stayed stable during normal daytime temperature changes in our indoor telecom room. Good experience overall.

84 Voto útil Comentarios

G *** e

Singapore

Compra verificada

4 .0

2025-02-08

Tracking information updated a little slowly during the international leg of shipment. The actual product quality was good, and our 70km single-mode fiber test passed on the first attempt.

37 Voto útil Comentarios

V *** n

Marruecos

Compra verificada

5 .0

2025-01-31

The duplex LC connection fit our existing CWDM panel perfectly.

48 Voto útil Comentarios

N *** n

India

Compra verificada

5 .0

2025-01-12

We deployed 10 LS-CW391G-80C CWDM modules in a campus fiber consolidation project, using 1390nm as one channel in an existing CWDM MUX/DEMUX system. The longest route was just under 70km including patch-panel and splice loss. DOM readings were consistent across the batch, and the reported receive power gave us enough margin to document the links before handover. After several weeks of carrying office, security, and management traffic, interface counters remain clean with no recurring link events. For indoor 1GbE CWDM backbone work, this is a dependable SFP option.

142 Voto útil Comentarios