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. Die 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 Optisches Transceiver-Modul

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

# 203118

Produkt: LINK-PP LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF Optisches Transceiver-Modul
SKU: 203118
P / N: LS-CW391G-80C
Preis: 49 €
Lagerfahrzeug: 55 auf Lager
Verkauft: 335
Produkt-URL: https://www.l-p.com/products/492584.htm

Bei Bestellungen über 1000 $ erhalten Sie 15.00 $ Rabatt. , Code: Linkpp15

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Neukunden: 10-Dollar-Gutschein für Bestellungen , Code: linkpp2610

: LINK-PP LS-CW391G-80C 1G SFP CWDM 1390nm 80km Duplex LC DOM SMF Optisches Transceiver-Modul

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

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

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LINK-PP LS-CW391G-80C 1G SFP Spezifikationen

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 Artikelnummer	LS-CW391G-80C	Herstellername	LINK-PP
Formfaktor	SFP	Max. Datenrate	1.25Gbps
Wellenlänge	1390nm	Maximaler Kabelabstand	80 km
Anschluss	Duplex-LC	Medien	SMF
Sendertyp	DFB	Empfängertyp	PIN
TX-Leistung	-1 bis +4 dBm	RX-Leistung	-26 bis -1 dBm
Empfänger-Empfindlichkeit	-26dBm	Empfänger Überlastung	-1dBm
EMV (Elektromagnetische Verträglichkeit)	Unterstützt	DOM	Unterstützt
Betriebstemperaturbereich	0 bis 70 ° C	Protokolle	SFP MSA, SFF-8472

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Q: Can this module be connected to multi-mode fiber in our older building network? Von 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. Von 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? Von 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. Von Admin on 2026-01-07
Q: Can DOM help us identify a dirty LC connector before the link goes down? Von 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. Von 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? Von B***e on 2025-08-30

A: Ja. Die 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. Von Admin on 2025-08-31

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B *** d

Vereinte Arabische Emirate

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

D *** e

Italien

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

Z *** n

Bangladesch

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

U *** e

Litauen

Verifizierter Kauf

5 .0

2026-05-13

No alarms, no CRC errors, just stable service.

56 Hilfreiche Abstimmung Kommentare

L *** t

Brasilien

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

G *** k

Frankreich

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

X *** n

Malediven

Verifizierter Kauf

5 .0

2026-03-25

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

57 Hilfreiche Abstimmung Kommentare

R *** k

Korea

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

Q***k

Belarus

Verifizierter Kauf

5 .0

2026-02-22

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

60 Hilfreiche Abstimmung Kommentare

J *** e

Kanada

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

E *** r

Großbritannien

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

F *** n

Norwegen

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

D *** x

Libyan Arab Jamahiriya

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

K *** h

Australien

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

T *** r

Kambodscha

Verifizierter Kauf

5 .0

2025-10-26

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

53 Hilfreiche Abstimmung Kommentare

Schweden

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

H *** r

USA

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

Y *** n

Nepal

Verifizierter Kauf

5 .0

2025-08-25

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

63 Hilfreiche Abstimmung Kommentare

P *** y

Mexiko

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

C *** s

Islamische Republik Iran

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

R *** g

Brunei Darussalam

Verifizierter Kauf

5 .0

2025-06-14

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

43 Hilfreiche Abstimmung Kommentare

Ich *** r

Japan

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

E *** l

Spanien

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

S *** e

Niederlande

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

W *** n

Macao

Verifizierter Kauf

5 .0

2025-04-04

Reliable 1390nm SFP CWDM module for metro fiber extension.

65 Hilfreiche Abstimmung Kommentare

F *** h

Deutschland

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

Ein

Argentinien

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

G *** e

Singapur

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare

V *** n

Marokko

Verifizierter Kauf

5 .0

2025-01-31

The duplex LC connection fit our existing CWDM panel perfectly.

48 Hilfreiche Abstimmung Kommentare

N *** n

Indien

Verifizierter Kauf

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 Hilfreiche Abstimmung Kommentare