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?

はい。の 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 デュプレックス LC DOM SMF 光トランシーバーモジュール

Name: LINK-PP LS-CW391G-80C 1G SFP CWDM 1390nm 80km デュプレックス LC DOM SMF 光トランシーバーモジュール
Brand: LINK-PP
SKU: 203118
Price: 42.14 USD
Availability: InStock
Rating: 4.9 (30 reviews)

＃203118

製品: LINK-PP LS-CW391G-80C 1G SFP CWDM 1390nm 80km デュプレックス LC DOM SMF 光トランシーバーモジュール
SKU: 203118
P / N: LS-CW391G-80C
価格: $ 49
ステージ０: 55在庫あり
SOLD: 335
商品のURL: https://www.l-p.com/products/492584.htm

1000ドル以上のご注文で15.00ドル割引、コード: Linkpp15

3000ドル以上のご注文で50.00ドル割引、コード: Linkpp50

5000ドル以上のご注文で100.00ドル割引、コード: Linkpp100

新規ユーザー様：ご注文時に使える10ドルクーポン、コード: linkpp2610

: LINK-PP LS-CW391G-80C 1G SFP CWDM 1390nm 80km デュプレックス LC DOM SMF 光トランシーバーモジュール

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製造： LINK-PP

P / N： LS-CW391G-80C

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

波長：: 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の仕様

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 部品番号	LS-CW391G-80C	業者名	LINK-PP
フォームファクター	SFP	最大データレート	1.25Gbps
波長	1390nm	最大ケーブル距離	80km
ボンジョイント	デュプレックスLC	メディアの方	SMF
トランスミッタの種類	DFB	レシーバータイプ	PIN
TXパワー	-1〜 + 4dBm	RXパワー	-26〜-1dBm
レシーバ感度	-26dBm	レシーバの過負荷	-1dBm
EMC（電磁両立性）	サポート	DOM	サポート
動作温度範囲	0から70°C	プロトコル	SFP MSA、SFF-8472

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

A: はい。の 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. 管理者による on 2025-08-31

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B *** d

アラブ首長国連邦

確認済みの購入

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 役立つ投票コメント

D *** e

Italy

確認済みの購入

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 役立つ投票コメント

Z *** n

バングラデシュ

確認済みの購入

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 役立つ投票コメント

U *** e

リトアニア

確認済みの購入

5.0

2026-05-13

No alarms, no CRC errors, just stable service.

56 役立つ投票コメント

L *** t

Brazil

確認済みの購入

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 役立つ投票コメント

G *** k

France

確認済みの購入

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 役立つ投票コメント

X *** n

モルディブ

確認済みの購入

5.0

2026-03-25

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

57 役立つ投票コメント

R *** k

Republic of Korea

確認済みの購入

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 役立つ投票コメント

クック

ベラルーシ

確認済みの購入

5.0

2026-02-22

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

60 役立つ投票コメント

J *** e

Canada

確認済みの購入

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 役立つ投票コメント

E *** r

イギリス

確認済みの購入

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 役立つ投票コメント

F *** n

Norway

確認済みの購入

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 役立つ投票コメント

D *** x

リビア

確認済みの購入

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 役立つ投票コメント

K *** h

Australia

確認済みの購入

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 役立つ投票コメント

T *** r

カンボジア

確認済みの購入

5.0

2025-10-26

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

53 役立つ投票コメント

C *** h

Sweden

確認済みの購入

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 役立つ投票コメント

H *** r

米国

確認済みの購入

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 役立つ投票コメント

Y *** n

ネパール

確認済みの購入

5.0

2025-08-25

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

63 役立つ投票コメント

P *** y

Mexico

確認済みの購入

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 役立つ投票コメント

C *** s

イラン、イスラム共和国

確認済みの購入

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 役立つ投票コメント

R *** g

ブルネイ・ダルサラーム国

確認済みの購入

5.0

2025-06-14

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

43 役立つ投票コメント

私は*** r

日本

確認済みの購入

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 役立つ投票コメント

E *** l

スペイン

確認済みの購入

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 役立つ投票コメント

S *** e

Netherlands

確認済みの購入

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 役立つ投票コメント

W *** n

マカオ

確認済みの購入

5.0

2025-04-04

Reliable 1390nm SFP CWDM module for metro fiber extension.

65 役立つ投票コメント

F *** h

Germany

確認済みの購入

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 役立つ投票コメント

A *** n

Argentina

確認済みの購入

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 役立つ投票コメント

G *** e

シンガポール

確認済みの購入

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 役立つ投票コメント

V *** n

モロッコ

確認済みの購入

5.0

2025-01-31

The duplex LC connection fit our existing CWDM panel perfectly.

48 役立つ投票コメント

N *** n

India

確認済みの購入

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 役立つ投票コメント