Can DDM help us detect whether the module is approaching its temperature limit?

Yes. The module’s real-time DDM function can report operating temperature through compatible host equipment. Your NOC can set thresholds or monitor trends to identify abnormal temperature increases before the module reaches its rated limit.

We use 1G Fibre Channel between storage systems at two locations. Can this 1410nm CWDM SFP be used for that link?

Yes. The LS-CW411G-80C supports 1.063Gbps Fibre Channel and can be used for 1G Fibre Channel links over single-mode fiber. For a stable connection, use a matching 1410nm CWDM module at the other end.

Do we need a CWDM MUX/DEMUX to use this 1410nm SFP module?

A CWDM MUX/DEMUX is needed when multiple CWDM wavelengths share one pair of single-mode fibers. If this is a dedicated point-to-point fiber link using only one optical channel, the 1410nm modules can normally connect directly through duplex single-mode fiber without a MUX/DEMUX.

We already have duplex LC-to-LC single-mode patch cords in our network. Can we connect them directly to this 1410nm CWDM SFP?

Yes. The LS-CW411G-80C has a duplex LC interface and is designed for single-mode fiber. You can connect a standard duplex LC-to-LC single-mode patch cord directly to the module. Just make sure the fiber polarity is correct so the transmit and receive paths are properly matched.

Can this module be inserted while the switch is running, or do we need to power it off first?

This module has a hot-pluggable SFP design, so it can normally be inserted or removed while the switch is powered on. After installation, wait a few seconds for the device to detect the module and check the link status.

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LINK-PP LS-CW411G-80C 1G SFP CWDM 1410nm 80km Duplex LC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-CW411G-80C 1G SFP CWDM 1410nm 80km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 203158
Price: 42.14 USD
Availability: InStock
Rating: 4.9 (29 reviews)

# 203158

Product: LINK-PP LS-CW411G-80C 1G SFP CWDM 1410nm 80km Duplex LC DOM SMF Optical Transceiver Module
SKU: 203158
P/N: LS-CW411G-80C
Price: $ 49
Stock: 132 in Stock
Sold: 768
Product URL: https://www.l-p.com/products/492624.htm

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

Wavelength:: 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-CW411G-80C 1G SFP Specifications

LS-CW411G-80C is a 1410nm CWDM SFP module engineered for 1G data links, integrating a DFB laser and PIN photodiode to enable 80km reach over single-mode fiber under a 0 – 70°C operating range. Real-time digital optical monitoring is embedded to provide continuous readouts of TX power, RX power, bias current, temperature, and supply voltage, ensuring precise link status visibility.

LINK-PP Part Number	LS-CW411G-80C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1410nm	Max Cable Distance	80km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-1 to +4dBm	RX Power	-26 to -1dBm
Receiver Sensitivity	-26dBm	Receiver Overload	-1dBm
EMC (Electro Magnetic Comnatihilitv)	Supported	DOM	Supported
Operating Temperature Range	0 to 70°C	Protocols	SFP MSA、SFF-8472

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Q: Can DDM help us detect whether the module is approaching its temperature limit? By X***l on 2026-04-05

A: Yes. The module’s real-time DDM function can report operating temperature through compatible host equipment. Your NOC can set thresholds or monitor trends to identify abnormal temperature increases before the module reaches its rated limit. By admin on 2026-04-06
Q: We use 1G Fibre Channel between storage systems at two locations. Can this 1410nm CWDM SFP be used for that link? By C***r on 2026-01-09

A: Yes. The LS-CW411G-80C supports 1.063Gbps Fibre Channel and can be used for 1G Fibre Channel links over single-mode fiber. For a stable connection, use a matching 1410nm CWDM module at the other end. By admin on 2026-01-10
Q: Do we need a CWDM MUX/DEMUX to use this 1410nm SFP module? By W***e on 2025-12-18

A: A CWDM MUX/DEMUX is needed when multiple CWDM wavelengths share one pair of single-mode fibers. If this is a dedicated point-to-point fiber link using only one optical channel, the 1410nm modules can normally connect directly through duplex single-mode fiber without a MUX/DEMUX. By admin on 2025-12-19
Q: We already have duplex LC-to-LC single-mode patch cords in our network. Can we connect them directly to this 1410nm CWDM SFP? By Z***n on 2025-10-23

A: Yes. The LS-CW411G-80C has a duplex LC interface and is designed for single-mode fiber. You can connect a standard duplex LC-to-LC single-mode patch cord directly to the module. Just make sure the fiber polarity is correct so the transmit and receive paths are properly matched. By admin on 2025-10-24
Q: Can this module be inserted while the switch is running, or do we need to power it off first? By Y***e on 2025-02-07

A: This module has a hot-pluggable SFP design, so it can normally be inserted or removed while the switch is powered on. After installation, wait a few seconds for the device to detect the module and check the link status. By admin on 2025-02-08

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K***e

Sweden

Verified Purchase

5 .0

2026-06-17

Duplex LC fit was precise and the module came right up.

57 Helpful vote Comments

N***k

Belgium

Verified Purchase

5 .0

2026-06-05

Purchased for a batch rollout of remote network cabinets. The modules have consistent labels and performance, which makes inventory handling easier. Every tested unit passed traffic and diagnostics checks.

59 Helpful vote Comments

E***n

Philippines

Verified Purchase

5 .0

2026-05-30

Good packaging, clear labeling, and the correct 1410nm wavelength arrived. We are using it with single-mode OS2 fiber and duplex LC patch leads. It has been a simple upgrade for a legacy 1G fiber path.

82 Helpful vote Comments

P***h

Sweden

Verified Purchase

5 .0

2026-04-08

Exactly what we needed for passive CWDM MUX channel expansion in Stockholm.

63 Helpful vote Comments

I***t

Mexico

Verified Purchase

5 .0

2026-03-18

Duplex LC snapped tight, link pulled 72km straight without external amplification.

68 Helpful vote Comments

D***s

Poland

Verified Purchase

5 .0

2026-03-10

We deployed this CWDM 80km SFP optical module into our municipal campus fiber loop. The single-mode duplex LC interface seated securely with standard patch cords, and the switch recognized the vendor EEPROM instantly. Super smooth installation! (•‿•)

106 Helpful vote Comments

B***n

Thailand

Verified Purchase

5 .0

2026-03-01

Our operations team installed these in a remote aggregation cabinet connected over roughly 73km of SMF. The optical power levels remained comfortably within range, and there have been no link flaps so far. Nice, dependable commercial-grade optic.

112 Helpful vote Comments

K***n

Denmark

Verified Purchase

4 .0

2026-02-20

Performance has been stable on our 1G 80km single-mode fiber connection, and the DOM readings are easy to check. I gave four stars only because the shipment tracking did not update for a couple of days.

25 Helpful vote Comments

M***e

Italy

Verified Purchase

5 .0

2026-02-13

DDM made commissioning much easier — worth it.

45 Helpful vote Comments

F***s

Ukraine

Verified Purchase

5 .0

2026-01-12

We installed a pair of LS-CW411G-80C 1.25G CWDM SFP modules on an approximately 76km single-mode fiber route between a central equipment room and a remote utility site. The route includes several patch panels and a CWDM MUX/DEMUX stage, so we checked both insertion loss and DOM values before putting it into service. The 1410nm wavelength aligned correctly with our channel plan, while the reported TX and RX optical power remained within the published operating window. After a week of continuous production traffic, we saw no CRC growth, no unexpected link resets, and no noticeable optical drift.

146 Helpful vote Comments

T***y

Indonesia

Verified Purchase

5 .0

2026-01-10

Installed as part of a data room-to-warehouse connection over long single-mode fiber. The module was recognized without any configuration headache, and the LC duplex polarity was easy to verify.

103 Helpful vote Comments

O***l

Bulgaria

Verified Purchase

4 .0

2025-12-15

We received the correct quantity for a multi-site deployment, and every unit passed our incoming inspection. Shipping took two extra business days beyond the original estimate, so we adjusted the installation schedule slightly.

21 Helpful vote Comments

H***e

Brazil

Verified Purchase

5 .0

2025-12-01

Clean 1410nm CWDM link at 80km, and DOM readings look spot on.

49 Helpful vote Comments

M***y

South Africa

Verified Purchase

5 .0

2025-11-25

We deployed these in a municipal-style fiber ring with several CWDM wavelengths. The 1410nm channel coexists well with the rest of the plan, and the unit has held a steady 1Gbps connection. Solid performance for the price.

84 Helpful vote Comments

G***h

Turkey

Verified Purchase

5 .0

2025-11-08

We deployed this LS-CW411G-80C 1410nm CWDM SFP on a 68km inter-building route that shares a passive CWDM backbone with several other wavelengths. Installation was simple: clean the Duplex LC connectors, confirm fiber polarity, match the 1410nm MUX port, and monitor the DOM values after link-up. The link settled quickly at 1Gbps and remained error-free through overnight replication traffic. We especially liked being able to collect temperature, voltage, Tx power, and Rx power remotely during the acceptance test. For an enterprise long-haul SMF connection, this is a reliable 80km CWDM optic.

121 Helpful vote Comments

N***s

Spain

Verified Purchase

5 .0

2025-10-11

Stable 1410nm channel performance in our CWDM MUX system.

52 Helpful vote Comments

I***e

Ireland

Verified Purchase

5 .0

2025-09-23

We use these modules for 1Gbps transport links supporting distributed sites and low-bandwidth cellular backhaul equipment. One advantage of this 1410nm CWDM SFP is that it lets us expand capacity over the same single-mode fiber plant without pulling another cable. During acceptance testing, the modules maintained stable links through the passive CWDM system, and optical monitoring allowed the NOC to establish baseline TX/RX levels for future troubleshooting. The Duplex LC port is convenient because it matches our standard patching practice, while the 80km rating provides useful margin for routes that may be extended later. For teams managing long optical paths, having DOM/DDM data is much better than relying on link LEDs alone.

159 Helpful vote Comments

S***s

New Zealand

Verified Purchase

5 .0

2025-09-06

We needed an 80km 1G SFP rather than a short-reach module because the far site is well outside our normal metro footprint. This model gave us the reach plus CWDM wavelength separation we needed. DOM is a useful bonus for ongoing maintenance.

121 Helpful vote Comments

A***s

Singapore

Verified Purchase

5 .0

2025-08-29

Ordered several 1G CWDM SFP 1410nm 80km modules for a campus fiber project. All units were recognized correctly, and the DDM values were helpful for checking received optical power before final handover. Good choice for a long-distance CWDM deployment.

105 Helpful vote Comments

P***t

Austria

Verified Purchase

5 .0

2025-08-02

Great option for extending 1G Ethernet over single-mode fiber where 1410nm is available on the CWDM multiplexer. Low effort to deploy, stable link status, and readable optical diagnostics. ^_^

128 Helpful vote Comments

J***g

Republic of Korea

Verified Purchase

5 .0

2025-07-22

Reliable 80km CWDM SFP optical module for our single-mode fiber ring.

71 Helpful vote Comments

J***s

Israel

Verified Purchase

5 .0

2025-07-15

Our team used the LS-CW411G-80C to replace aging optics on a long campus-to-site link that was intermittently difficult to troubleshoot. The change was not about raw bandwidth — the circuit is only 1Gbps — but about restoring visibility and ensuring the correct 1410nm CWDM wavelength on the shared fiber. Once installed, DDM immediately gave us useful baseline temperature, transmit power, receive power, and supply information. The connection has remained stable during scheduled backup windows and daytime production loads. For commercial 1G CWDM applications, this SFP module offers a sensible balance of reach, diagnostics, and deployment simplicity.

137 Helpful vote Comments

C***n

Russian Federation

Verified Purchase

5 .0

2025-06-21

This 1410nm SFP optical module was a direct fit for an existing CWDM network where we needed an additional wavelength. It is compact, the latch feels solid, and the 1.25Gbps connection has been stable during normal office and backup traffic. No extra tuning needed.

98 Helpful vote Comments

C***n

Romania

Verified Purchase

5 .0

2025-05-29

Integrated this 1410nm SFP module into an existing 8-channel passive CWDM multiplexer. Insertion loss through the MUX filter was minimal, leaving plenty of power headroom for our long-span fiber run.

77 Helpful vote Comments

L***e

Netherlands

Verified Purchase

5 .0

2025-05-11

Good optical budget for long-haul campus connectivity.

73 Helpful vote Comments

L***d

Hungary

Verified Purchase

4 .0

2025-03-27

Everything tested correctly on arrival, including the duplex LC ports and DDM monitoring. The individual packaging was secure, but the bulk box could use a little more internal padding for international deliveries.

33 Helpful vote Comments

F***s

Malaysia

Verified Purchase

5 .0

2025-03-16

Our network team likes having SFF-8472 diagnostics available on long fiber runs. With this 80km CWDM SFP module, we can watch TX/RX power and temperature remotely instead of waiting for a field visit. That alone saves time.

91 Helpful vote Comments

H***l

Finland

Verified Purchase

5 .0

2025-02-16

For a multi-building enterprise fiber refresh, we needed a 1G SFP transceiver that could preserve available fiber pairs and work within our existing CWDM design. This 1410nm 80km SFP module was selected for one of the longer routes, then validated through switch recognition, DOM polling, sustained throughput testing, and planned failover. The DFB transmitter and PIN receiver combination delivered clean readings, and the SFF-8472 digital diagnostics were visible through our normal monitoring stack. We also verified the commercial 0–70°C range is suitable for our climate-controlled MDF and IDF spaces. It is not intended as an industrial-temperature module, but for indoor enterprise and data-room applications, it has performed exactly as expected.

132 Helpful vote Comments

T***l

Norway

Verified Purchase

5 .0

2025-01-25

We used the LS-CW411G-80C module to extend a 1G uplink between two offices on existing single-mode fiber. The 1410nm CWDM channel matched our passive MUX/DEMUX plan, and the Duplex LC connection was straightforward. The link came up immediately and has stayed stable.

93 Helpful vote Comments