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?

Ja. De 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 LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF Optische Transceivermodule

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

#203118

Product: LINK-PP LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF Optische Transceivermodule
SKU: 203118
P / N: LS-CW391G-80C
Prijs: € 49
Voorraad: 55 op voorraad
Verkocht: 335
Product-URL: https://www.l-p.com/products/492584.htm

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: LINK-PP LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF Optische Transceivermodule

30 Reviews Hulp nodig?

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

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

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Specificaties

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LINK-PP Specificaties van de LS-CW391G-80C 1G SFP

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 Onderdeel nummer	LS-CW391G-80C	Naam van de leverancier	LINK-PP
Form Factor	SFP	Max. Gegevenssnelheid	1.25Gbps
Golflengte	1390nm	Max. Kabelafstand	80km
connector	Duplex-LC	Media	SMF
Zender Type	DFB	Type ontvanger	PIN
TX Power	-1 tot + 4dBm	RX-kracht	-26 tot -1dBm
receiver Gevoeligheid	-26dBm	receiver Overload	-1dBm
EMC (Elektromagnetische Communicatie)	ondersteunde	ARREST	ondersteunde
Bedrijfstemperatuurbereik	0 tot 70 ° C	protocollen	SFP MSA, SFF-8472

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Geen gegevens

Q: Can this module be connected to multi-mode fiber in our older building network? Door 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. Door beheerder on 2026-03-12
Q: We need a small trial order before placing a large purchase order. Can we test a few units first? Door 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. Door beheerder on 2026-01-07
Q: Can DOM help us identify a dirty LC connector before the link goes down? Door 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. Door beheerder 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? Door B***e on 2025-08-30

A: Ja. De 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. Door beheerder on 2025-08-31

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Geen gegevens

B *** d

Verenigde Arabische Emiraten

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

D *** e

Italië

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

Z *** n

Bangladesh

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

U *** e

Litouwen

Geverifieerde aankoop

5.0

2026-05-13

No alarms, no CRC errors, just stable service.

56 Nuttige stem Heb je vragen? Stel ze hier.

L *** t

Brazilië

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

G *** k

Frankrijk

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

X *** n

Maldiven

Geverifieerde aankoop

5.0

2026-03-25

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

57 Nuttige stem Heb je vragen? Stel ze hier.

R *** k

Republiek Korea

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

Q***k

Wit-Rusland

Geverifieerde aankoop

5.0

2026-02-22

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

60 Nuttige stem Heb je vragen? Stel ze hier.

J *** e

Canada

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

E *** r

Verenigd Koninkrijk

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

F *** n

Noorwegen

Geverifieerde aankoop

5.0

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 Nuttige stem Heb je vragen? Stel ze hier.

D *** x

Libië

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

K *** h

Australië

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

T *** r

Cambodja

Geverifieerde aankoop

5.0

2025-10-26

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

53 Nuttige stem Heb je vragen? Stel ze hier.

C *** h

Zweden

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

H *** r

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

Y n ***

Nepal

Geverifieerde aankoop

5.0

2025-08-25

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

63 Nuttige stem Heb je vragen? Stel ze hier.

P *** y

Mexico

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

C *** s

Iran, Islamitische Republiek

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

R *** g

Brunei Darussalam

Geverifieerde aankoop

5.0

2025-06-14

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

43 Nuttige stem Heb je vragen? Stel ze hier.

I *** r

Japan

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

E *** l

Spanje

Geverifieerde aankoop

5.0

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 Nuttige stem Heb je vragen? Stel ze hier.

S *** e

Nederland

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

W *** n

macao

Geverifieerde aankoop

5.0

2025-04-04

Reliable 1390nm SFP CWDM module for metro fiber extension.

65 Nuttige stem Heb je vragen? Stel ze hier.

F *** h

Duitsland

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

Een

Argentinië

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.

G *** e

Singapore

Geverifieerde aankoop

5.0

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 Nuttige stem Heb je vragen? Stel ze hier.

V *** n

Marokko

Geverifieerde aankoop

5.0

2025-01-31

The duplex LC connection fit our existing CWDM panel perfectly.

48 Nuttige stem Heb je vragen? Stel ze hier.

N *** n

India

Geverifieerde aankoop

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 Nuttige stem Heb je vragen? Stel ze hier.