Our fiber route is about 72 km and includes patch panels and splice points. Can we use this 80km CWDM SFP module for the link?

Potentially, yes. The 80km rating is the maximum nominal transmission distance, but the total fiber loss must remain within the module’s optical budget after including fiber attenuation, connector loss, splice loss, and CWDM MUX/DEMUX insertion loss.

We already have a 1470nm CWDM module at the remote end. Can we pair it with this LS-CW451G-80C 1450nm module?

No. For a normal duplex CWDM connection, both ends should use matching 1450nm modules. A 1450nm module should not be directly paired with a 1470nm module.

Our modules are installed inside a controlled central office, but some racks run warm during peak traffic. Is the 0°C to +70°C rating based on ambient temperature or module case temperature?

The stated 0°C to +70°C specification is the operating case-temperature range. Actual module case temperature can be higher than room ambient temperature, depending on airflow, switch design, port density, and power consumption.

Our switch provides a standard 3.3V SFP power supply. Does this module need any additional power connection?

No. The LS-CW451G-80C module operates from a single +3.3V power supply through the SFP host interface and does not require an external power connection.

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LINK-PP Module émetteur-récepteur optique LS-CW451G-80C 1G SFP CWDM 1450 nm 80 km Duplex LC DDM SMF

Name: LINK-PP Module émetteur-récepteur optique LS-CW451G-80C 1G SFP CWDM 1450 nm 80 km Duplex LC DDM SMF
Brand: LINK-PP
SKU: 203226
Price: 43 USD
Availability: InStock
Rating: 4.9 (27 reviews)

# 203226

Produit: LINK-PP Module émetteur-récepteur optique LS-CW451G-80C 1G SFP CWDM 1450 nm 80 km Duplex LC DDM SMF
SKU: 203226
P / N: LS-CW451G-80C
Tarifs et Prix: 50 $
Stock: 178 en stock
Vendu: 922
URL du produit: https://www.l-p.com/products/492692.htm

Pour toute commande supérieure à 1000 $, bénéficiez d'une réduction de 15.00 $. , Code : Linkpp15

Pour toute commande supérieure à 3000 $, bénéficiez d'une réduction de 50.00 $. , Code : Linkpp50

Pour toute commande supérieure à 5000 $, bénéficiez d'une réduction de 100.00 $. , Code : Linkpp100

Nouveaux utilisateurs : Coupon de 10 $ pour toute commande , Code : linkpp2610

: LINK-PP Module émetteur-récepteur optique LS-CW451G-80C 1G SFP CWDM 1450 nm 80 km Duplex LC DDM SMF

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Fabrication: LINK-PP

P / N: LS-CW451G-80C

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

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

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LINK-PP Spécifications du module SFP 1G LS-CW451G-80C

LS-CW451G-80C comes as a 1450nm CWDM SFP module with support for data rates of up to 1.25Gbps. Built with a DFB laser and PIN photodiode, it delivers transmission over SMF distances of up to 80km and operates within a 0 to +70°C temperature range. Real-time digital diagnostic monitoring enables continuous monitoring of essential module parameters and operating status.

LINK-PP Référence	LS-CW451G-80C	Nom du vendeur	LINK-PP
Facteur de forme	SFP	Débit de données maximum	1.25Gbps
Longueur des ondes	1450nm	Distance maximum de câble	80km
connecteur	LC duplex	médias	SMF
Type d'émetteur	DFB	Type de récepteur	PIN
Puissance TX	-1 à + 4dBm	Puissance de réception	-26 à -1dBm
Sensibilité du récepteur	-26dBm	récepteur surcharge	-1dBm
CEM (Communauté Électromagnétique)	Appareils	DDM	Appareils
Température de fonctionnement	0 à 70 ° C	Protocoles	SFP MSA, SFF-8472

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Pas de données

Q: Our fiber route is about 72 km and includes patch panels and splice points. Can we use this 80km CWDM SFP module for the link? Par Q***e on 2026-03-10

A: Potentially, yes. The 80km rating is the maximum nominal transmission distance, but the total fiber loss must remain within the module’s optical budget after including fiber attenuation, connector loss, splice loss, and CWDM MUX/DEMUX insertion loss. Par l'administrateur on 2026-03-11
Q: We already have a 1470nm CWDM module at the remote end. Can we pair it with this LS-CW451G-80C 1450nm module? Par R***k on 2026-01-21

A: No. For a normal duplex CWDM connection, both ends should use matching 1450nm modules. A 1450nm module should not be directly paired with a 1470nm module. Par l'administrateur on 2026-01-22
Q: Our modules are installed inside a controlled central office, but some racks run warm during peak traffic. Is the 0°C to +70°C rating based on ambient temperature or module case temperature? Par P***g on 2025-06-29

A: The stated 0°C to +70°C specification is the operating case-temperature range. Actual module case temperature can be higher than room ambient temperature, depending on airflow, switch design, port density, and power consumption. Par l'administrateur on 2025-06-30
Q: Our switch provides a standard 3.3V SFP power supply. Does this module need any additional power connection? Par S***n on 2025-05-19

A: No. The LS-CW451G-80C module operates from a single +3.3V power supply through the SFP host interface and does not require an external power connection. Par l'administrateur on 2025-05-20

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Pas de données

V *** y

Suède

Achat vérifié

5 .0

2026-05-25

Good fit for a long-distance enterprise network where we still have active 1GbE access switches. The 1G SFP format saved us from replacing working equipment while adding another CWDM wavelength to the existing SMF pair.

90 Vote utile Commentaires

N *** r

l'Afrique du Sud

Achat vérifié

5 .0

2026-04-22

We needed 1450nm CWDM modules specifically, not a generic 1310nm long-reach SFP. This module matched our CWDM channel plan, delivered a stable 1.25G connection, and fit our duplex LC patching setup perfectly.

61 Vote utile Commentaires

L *** n

Canada

Achat vérifié

5 .0

2026-04-03

Good optical budget for our long campus backbone.

51 Vote utile Commentaires

P *** s

Inde

Achat vérifié

5 .0

2026-03-30

Hot-swapped into our aggregation rack without a single glitch or port flap. (•‿•)

66 Vote utile Commentaires

L *** t

Nouvelle-Zélande

Achat vérifié

5 .0

2026-03-09

Installed as part of a multi-vendor switch refresh where legacy access equipment still relies on standard SFP ports. We provided the required host coding information before ordering, and the modules were delivered ready for our planned device profile. On a 57km single-mode fiber link, the 1.25Gbps port negotiated normally and stayed stable through traffic tests. The Duplex LC interface was convenient because the field plant already used LC patch panels, and DOM helped quickly identify one dirty connector during installation.

99 Vote utile Commentaires

S *** x

Norvege

Achat vérifié

5 .0

2026-02-27

A practical option for a 1G backbone over single-mode fiber. Our techs like that it is a standard duplex LC SFP, so there is no special handling beyond checking polarity and cleaning the connectors.

85 Vote utile Commentaires

J *** k

Royaume-Uni

Achat vérifié

5 .0

2026-01-22

Solid 1G CWDM SFP for an 80km single-mode fiber run.

50 Vote utile Commentaires

C *** p

Finlande

Achat vérifié

4 .0

2026-01-08

The 80km CWDM 1G SFP itself tested well, linked quickly, and the 1450nm channel matched our fiber plan. One carton arrived with a slightly crushed outer corner, although the anti-static packaging and modules inside were fine.

23 Vote utile Commentaires

Q***h

Fédération Russe

Achat vérifié

5 .0

2026-01-04

The module works well for long-haul 1G Ethernet transport where a 1450nm CWDM channel is needed. Vendor coding was handled before shipment, which made the rollout much faster for our operations team.

103 Vote utile Commentaires

W *** s

Pays-Bas

Achat vérifié

5 .0

2025-12-21

Ordered these 1G SFP modules for a CWDM MUX/DEMUX upgrade where the 1450nm channel was already assigned in the fiber plan. The modules came up quickly, and DDM monitoring lets our NOC keep an eye on transmit power, receive power, temperature, and supply voltage.

132 Vote utile Commentaires

Je *** k

Pologne

Achat vérifié

5 .0

2025-12-08

Our data-center team used this 1G 1450nm CWDM SFP module to carry management and storage-related traffic between facilities over single-mode fiber. It is not intended to turn a 1G port into 10G, but for legacy Gigabit interfaces it gives a clean, cost-conscious way to use a long CWDM span. The standard SFP MSA form factor seated properly, and the SFF-8472 DOM data integrated into our normal monitoring workflow.

159 Vote utile Commentaires

N *** e

Australie

Achat vérifié

5 .0

2025-11-19

Duplex LC connection, 1450nm channel, zero drama.

74 Vote utile Commentaires

Moi

Malaysia

Achat vérifié

5 .0

2025-11-11

We deployed 18 units of the LS-CW451G-80C in a municipal campus network connecting branch buildings to a central data room. The longest fiber section was just under 73km after splice and patch-panel losses, so we selected the 80km CWDM 1G SFP to retain reasonable margin. Initial DDM readings showed TX around the expected range and receiver levels comfortably above the sensitivity threshold. After several weeks, interface counters remain clean with no observed packet loss or CRC growth.

134 Vote utile Commentaires

T *** s

Italie

Achat vérifié

5 .0

2025-10-29

These 1450nm CWDM SFP transceivers were purchased for a multi-site fiber ring. Each unit was recognized correctly, and the SFF-8472 digital diagnostics were useful during commissioning. No CRC errors so far.

128 Vote utile Commentaires

D *** y

Roumanie

Achat vérifié

4 .0

2025-09-21

Performance is good on our 68km SMF route, and the DDM values look normal after installation. Shipping took a little longer than expected for a small replacement order, but the optical modules were properly labeled and worked on arrival.

37 Vote utile Commentaires

X *** n

Republic of Korea

Achat vérifié

5 .0

2025-09-09

We used this LS-CW451G-80C 1450nm CWDM SFP to extend a 1G link between two campus buildings. The 80km rating gave us plenty of optical margin on our much shorter single-mode fiber route, and the duplex LC connector made replacement straightforward.

84 Vote utile Commentaires

Dans

Allemagne

Achat vérifié

5 .0

2025-08-14

Installed cleanly and linked immediately on our 1450nm CWDM fiber path.

59 Vote utile Commentaires

Thaïlande

Achat vérifié

5 .0

2025-08-04

Nice balance of price and performance for a commercial-grade 1G CWDM SFP. It is especially useful when upgrading fiber capacity is more practical than pulling another cable.

86 Vote utile Commentaires

O *** y

Brésil

Achat vérifié

5 .0

2025-07-28

Perfect 1450nm CWDM grid channel pass-through on our passive 8-channel mux.

63 Vote utile Commentaires

K *** n

Belgique

Achat vérifié

5 .0

2025-07-19

We evaluated a pair on a long enterprise fiber route that includes multiple fusion splices, distribution frames, and CWDM passive components. The 1450nm channel passed traffic continuously during a 72-hour soak test, while optical diagnostics remained consistent with the calculated loss budget. The -26dBm receiver sensitivity is useful for these longer links, although we still recommend validating actual attenuation and keeping appropriate engineering margin. This is a good commercial-temperature 80km CWDM SFP for indoor network cabinets and managed backbone sites.

144 Vote utile Commentaires

R *** r

Singapour

Achat vérifié

5 .0

2025-06-18

We installed a batch in an indoor equipment room for separate CWDM channels over one fiber route. The optical power values stayed within expected limits, and the modules have been stable through normal HVAC temperature swings.

71 Vote utile Commentaires

J *** y

Autriche

Achat vérifié

5 .0

2025-05-14

This was purchased for a 1G base-station backhaul extension where available fiber was limited and the wavelength plan could not be changed. The module’s 1450nm CWDM wavelength allowed us to add capacity without deploying additional fiber pairs. We monitored DOM values during peak utilization and saw no abnormal drift in transmit or receive levels. The unit is commercial-grade rather than industrial temperature rated, so we installed it inside a conditioned enclosure as planned; for that environment, performance has been excellent.

132 Vote utile Commentaires

K *** k

France

Achat vérifié

5 .0

2025-05-09

DOM readings are stable and easy to verify from the switch CLI.

62 Vote utile Commentaires

Utah

Espagne

Achat vérifié

5 .0

2025-04-01

We tested the module on a remote telecom shelter link and got a stable connection with clean diagnostic values. The DFB transmitter and PIN receiver combination works well for this type of 80km CWDM deployment.

78 Vote utile Commentaires

P *** k

Philippines

Achat vérifié

5 .0

2025-03-24

Great module for point-to-point Gigabit links where trenching new fiber wasn't an option. Adding this 1450nm wavelength channel into our existing CWDM filter allowed us to spin up a dedicated backup link across 68km. Solid optical link stability over 30 days of continuous traffic.

137 Vote utile Commentaires

Y *** e

Mexique

Achat vérifié

5 .0

2025-02-11

Reliable CWDM 1G SFP module for remote-site connectivity.

58 Vote utile Commentaires

M *** h

Indonésie

Achat vérifié

5 .0

2025-01-08

Our operations team used these modules in a CWDM transport overlay for several 1GbE aggregation links. The key requirement was a 1450nm DFB CWDM transmitter compatible with our existing passive MUX/DEMUX channel map, plus readable SFF-8472 diagnostics. During acceptance testing, we checked temperature, voltage, laser bias, TX power, and RX power on both ends; the readings were consistent across the shipment. For commercial indoor racks operating within 0–70°C, this has been a dependable long-distance 1G SFP optical transceiver.

151 Vote utile Commentaires