Our operations team wants to monitor a long 1470nm CWDM link before it becomes unstable. What diagnostic information can this LS-CW471G-80C module provide?

Its DOM function can report real-time module temperature, supply voltage, laser bias current, transmit optical power, and receive optical power. These values help identify fiber degradation, dirty connectors, weak received signal, and abnormal module temperature.

We currently use duplex fiber for point-to-point links. Can this 1470nm CWDM SFP help us expand capacity over the same fiber route later?

Yes. This module uses the 1470nm CWDM channel and can be deployed with other CWDM wavelengths through compatible CWDM multiplexers and demultiplexers. Each wavelength must be correctly paired at both ends and matched to the MUX/DEMUX channel plan.

For a large CWDM project, can we order a small sample batch before placing the full order?

Yes. A small sample order is a practical way to confirm compatibility before bulk deployment. It is especially useful when testing the modules with a new switch, a new CWDM MUX/DEMUX, or a long fiber link. You can verify 1470nm channel matching, DOM readings, and overall link performance before confirming the full order.

Our backbone is standard OS2 single-mode fiber with LC patch panels. Is this CWDM SFP module a direct fit, and what connector type should we use?

Yes. The LS-CW471G-80C is intended for single-mode fiber transmission and uses a duplex LC optical interface. Standard duplex LC-to-LC single-mode patch cords are normally used between the module and the fiber distribution panel.

Our CWDM plan includes 1470nm, 1490nm, 1510nm, and 1530nm channels on the same fiber pair. Can this module operate alongside the other wavelengths without interference?

Yes. The LS-CW471G-80C 1470nm SFP module is designed to operate as one CWDM channel in a multi-wavelength system. When the MUX/DEMUX channel plan is correct, each wavelength is isolated and can carry an independent optical link over the same single-mode fiber pair.

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LINK-PP LS-CW471G-80C 1G SFP CWDM 1470nm 80km Duplex LC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-CW471G-80C 1G SFP CWDM 1470nm 80km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 203258
Price: 43 USD
Availability: InStock
Rating: 4.9 (26 reviews)

# 203258

Product: LINK-PP LS-CW471G-80C 1G SFP CWDM 1470nm 80km Duplex LC DOM SMF Optical Transceiver Module
SKU: 203258
P/N: LS-CW471G-80C
Price: $ 50
Stock: 110 in Stock
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Product URL: https://www.l-p.com/products/492724.htm

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Compatible:: Cisco; LINK-PP; Allied Telesis; 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-CW471G-80C 1G SFP Specifications

LS-CW471G-80C operates as a 1470nm CWDM SFP module, pairing a DFB laser with a PIN photodiode to enable single-mode fiber reach up to 80km. Its real-time digital optical monitoring continuously reports transmitter power, receiver power, temperature, voltage, and bias current with on-board precision. The module’s wavelength-specific filtering and calibrated loss budget ensure consistent link margins across the full CWDM grid without external equalization.

LINK-PP Part Number	LS-CW471G-80C	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1470nm	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: Our operations team wants to monitor a long 1470nm CWDM link before it becomes unstable. What diagnostic information can this LS-CW471G-80C module provide? By K***m on 2026-04-18

A: Its DOM function can report real-time module temperature, supply voltage, laser bias current, transmit optical power, and receive optical power. These values help identify fiber degradation, dirty connectors, weak received signal, and abnormal module temperature. By admin on 2026-04-19
Q: We currently use duplex fiber for point-to-point links. Can this 1470nm CWDM SFP help us expand capacity over the same fiber route later? By M***n on 2026-01-26

A: Yes. This module uses the 1470nm CWDM channel and can be deployed with other CWDM wavelengths through compatible CWDM multiplexers and demultiplexers. Each wavelength must be correctly paired at both ends and matched to the MUX/DEMUX channel plan. By admin on 2026-01-27
Q: For a large CWDM project, can we order a small sample batch before placing the full order? By O***p on 2025-12-03

A: Yes. A small sample order is a practical way to confirm compatibility before bulk deployment. It is especially useful when testing the modules with a new switch, a new CWDM MUX/DEMUX, or a long fiber link. You can verify 1470nm channel matching, DOM readings, and overall link performance before confirming the full order. By admin on 2025-12-04
Q: Our backbone is standard OS2 single-mode fiber with LC patch panels. Is this CWDM SFP module a direct fit, and what connector type should we use? By L***s on 2025-08-09

A: Yes. The LS-CW471G-80C is intended for single-mode fiber transmission and uses a duplex LC optical interface. Standard duplex LC-to-LC single-mode patch cords are normally used between the module and the fiber distribution panel. By admin on 2025-08-10
Q: Our CWDM plan includes 1470nm, 1490nm, 1510nm, and 1530nm channels on the same fiber pair. Can this module operate alongside the other wavelengths without interference? By N***e on 2025-01-14

A: Yes. The LS-CW471G-80C 1470nm SFP module is designed to operate as one CWDM channel in a multi-wavelength system. When the MUX/DEMUX channel plan is correct, each wavelength is isolated and can carry an independent optical link over the same single-mode fiber pair. By admin on 2025-01-15

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E***r

United Arab Emirates

Verified Purchase

5 .0

2026-06-21

Our colocation team used the LS-CW471G-80C in a 1G CWDM transport shelf connecting two metropolitan facilities. We chose the 1470nm wavelength specifically to fill an available channel rather than deploy another fiber pair. Installation was uncomplicated: insert the SFP, connect Duplex LC single-mode fiber through the CWDM MUX/DEMUX, verify wavelength mapping, and review DOM status. The DFB CWDM transmitter and PIN receiver performed as expected, with no unusual laser-temperature behavior during the acceptance test. It is not a substitute for an industrial -40 to 85°C module in exposed outdoor cabinets, but for climate-controlled data rooms it has delivered stable service at a sensible cost.

110 Helpful vote Comments

X***r

Cambodia

Verified Purchase

5 .0

2026-05-18

Used a pair for a long-distance point-to-point connection between a warehouse and a central office. The DFB laser output is strong enough for our loss budget, while the PIN receiver is sensitive enough to keep the connection dependable.

135 Helpful vote Comments

R***n

Israel

Verified Purchase

5 .0

2026-04-29

We used this LS-CW471G-80C SFP module to extend a 1G CWDM connection between two office campuses. The 1470nm channel matched our existing CWDM plan, and the Duplex LC single-mode patching was straightforward. The link has stayed stable since installation.

160 Helpful vote Comments

C***n

Morocco

Verified Purchase

5 .0

2026-03-14

Our data room has limited fiber count, so CWDM is the practical answer. This 1470nm SFP works with our single-mode fiber and passive multiplexing hardware, keeping the old 1G transport system useful without a major rebuild.

154 Helpful vote Comments

L***g

Poland

Verified Purchase

5 .0

2026-03-04

Solid 80km 1G CWDM SFP for our metro fiber path.

80 Helpful vote Comments

O***s

Ukraine

Verified Purchase

5 .0

2026-02-24

Installed in minutes and the 1.25G port came straight up.

70 Helpful vote Comments

F***n

Nepal

Verified Purchase

5 .0

2026-02-10

Our operations team used this 1.25G CWDM 1470nm SFP for a long-distance Fiber Channel network where we still maintain Gigabit uplinks. We checked optical power at commissioning, then compared it with the module’s DDM data from the switch CLI. The readings were close enough to trust the diagnostics for routine remote checks. That has reduced truck rolls because we can see whether a declining optical level is likely a fiber issue, dirty connector, or equipment-side problem. For commercial indoor cabinets, the 0–70°C rating is appropriate, and the Duplex LC connection made replacement easy for field technicians.

92 Helpful vote Comments

U***z

Bulgaria

Verified Purchase

5 .0

2026-01-18

Our purchasing team wanted a cost-conscious replacement for the legacy 1G CWDM optical transceiver. These arrived properly labeled by wavelength, which helped prevent channel mix-ups during rack deployment. The 1470nm CWDM channel has been stable so far.

141 Helpful vote Comments

P***n

Turkey

Verified Purchase

5 .0

2025-12-30

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

127 Helpful vote Comments

H***e

Bangladesh

Verified Purchase

5 .0

2025-12-12

We purchased these CWDM 1G SFP modules for a multi-site enterprise rollout with several types of network equipment in the environment. Before deployment, we performed compatibility checks, port resets, DOM polling, and extended traffic tests on each OEM-coded batch. All tested modules established 1Gbps links cleanly and maintained stable monitoring data under normal operating temperature. The SFP MSA mechanical format and SFF-8472 diagnostics are especially useful for organizations keeping a mixed estate of older access, aggregation, and transport equipment. The 80km specification provides planning flexibility, although we still recommend validating the complete optical loss budget rather than treating distance alone as the decision point.

146 Helpful vote Comments

K***t

Austria

Verified Purchase

5 .0

2025-11-28

Linked at 1470nm right away and DOM readings look clean.

104 Helpful vote Comments

G***h

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2025-11-05

Good choice for extending legacy Gigabit Ethernet over an existing 1470nm CWDM channel. The 80km reach gives us useful headroom compared with shorter-reach optics. No link flaps after three weeks of continuous use.

102 Helpful vote Comments

T***s

Denmark

Verified Purchase

5 .0

2025-10-15

This is a good fit when you need an 80km CWDM SFP optical transceiver without moving to a higher-speed platform. We are using it over single-mode fiber on a long rural site connection. Receive power remains comfortably within range.

75 Helpful vote Comments

F***d

Argentina

Verified Purchase

5 .0

2025-10-01

We used these modules during a legacy network modernization where the customer wanted to preserve its 1Gbps CWDM infrastructure while expanding monitoring capability. The old optics had no diagnostics, making it difficult to distinguish attenuation events from port failures. With this 1470nm 80km CWDM SFP, we can watch temperature, voltage, bias, transmit power, and receive power from the network management system. The optical performance has been consistent over a 61km path, and the LC duplex format works directly with the customer’s existing single-mode patching. For phased upgrades of enterprise, municipal, or telecom access networks, that is a meaningful operational improvement.

130 Helpful vote Comments

Z***l

Macao

Verified Purchase

5 .0

2025-09-26

We added this 1470nm SFP module to our 8-channel passive CWDM multiplexer. The duplex LC interface clicked firmly into our patch panel, and optical loss was well within our calculated margins. Smooth deployment all around.

57 Helpful vote Comments

M***y

Finland

Verified Purchase

5 .0

2025-09-17

Duplex LC fit was perfect — no surprises.

112 Helpful vote Comments

V***s

Belarus

Verified Purchase

5 .0

2025-08-21

Installed in an indoor aggregation switch for a campus fiber network. The module negotiated cleanly at 1Gbps, and the SFF-8472 DOM information appears correctly in the monitoring tool. No CRC errors after the burn-in period.

118 Helpful vote Comments

Q***t

Ireland

Verified Purchase

5 .0

2025-07-11

DOM data is available and useful for remote troubleshooting.

53 Helpful vote Comments

A***l

Maldives

Verified Purchase

5 .0

2025-07-02

We deployed LS-CW471G-80C CWDM SFP modules across a regional campus and utility-monitoring network where the longest route was just under 76km. The plant is single-mode fiber with patch panels, splice closures, and a passive CWDM MUX/DEMUX chain, so actual insertion loss matters more than a simple bench test. The 1470nm channel aligned correctly with our wavelength plan, and the modules consistently reported healthy DOM values. TX power stayed in the specified -1 to +4dBm range, while RX readings remained above the -26dBm sensitivity threshold with reasonable margin. After several weeks, interface counters show no packet loss or CRC accumulation.

123 Helpful vote Comments

W***n

Brunei Darussalam

Verified Purchase

5 .0

2025-06-04

We needed a 1470nm 80km CWDM SFP with LC connectors for an existing passive CWDM MUX/DEMUX system. This unit matched the channel and fiber type exactly. Nice plug-and-play experience.

85 Helpful vote Comments

D***r

Iran, Islamic Republic of

Verified Purchase

5 .0

2025-05-27

We installed a matched 1470nm CWDM optic pair on a 74km single-mode fiber route used for industrial telemetry and remote site management. The route includes multiple cross-connects and an existing CWDM passive filter system, so we cleaned every LC end face and documented baseline receive power during turn-up. The link came up immediately, and the receive levels held stable through normal day-to-night temperature changes. The DOM function lets us establish alarm thresholds before the signal approaches the receiver sensitivity limit. For network operations teams maintaining long-haul Gigabit fiber links, that visibility is more valuable than a basic non-DDM optic. ^_^

78 Helpful vote Comments

N***s

Romania

Verified Purchase

5 .0

2025-05-03

Reliable 1470nm CWDM SFP transceiver, stable link, good value.

149 Helpful vote Comments

Y***n

Lithuania

Verified Purchase

5 .0

2025-04-16

The form factor is standard SFP, the interface is duplex LC, and the module runs normally in a commercial server-room environment. For indoor 0 – 70°C deployments, it has been a dependable 1G CWDM transceiver option.

64 Helpful vote Comments

H***h

Japan

Verified Purchase

4 .0

2025-03-19

Great 1G CWDM module for our indoor single-mode fiber deployment; the link is stable and compatibility testing went smoothly. Delivery took a little longer than our project schedule expected, so order early for a time-sensitive rollout. Product performance is absolutely fine once installed.

35 Helpful vote Comments

S***d

Hungary

Verified Purchase

5 .0

2025-03-08

Bought several 1G 1470nm CWDM SFP modules for a small carrier backhaul upgrade. All units were recognized quickly, and the DDM values gave our NOC a simple way to verify TX power, RX power, temperature, and voltage. Very practical for fieldwork.

98 Helpful vote Comments

G***e

United States

Verified Purchase

4 .0

2025-01-22

The 1470nm 80km CWDM SFP itself performs well and the DOM readings are accurate enough for routine checks. One carton arrived with a slightly crushed outer corner, although the antistatic packaging protected every module and none were damaged. I would buy again, but stronger bulk carton padding would be welcome.

28 Helpful vote Comments