Do we need multi-mode fiber or single-mode fiber patch cords for our CWDM MUX panel connection?

Single-mode fiber is mandatory for this link. Multi-mode fiber causes severe optical dispersion and attenuation at 1470nm, whereas duplex LC single-mode patch cords ensure optimal signal transmission and full 20km optical reach.

Can we monitor internal transceiver temperature in real time inside densely populated switch faceplates?

Yes. This transceiver features a Digital Diagnostic Monitoring (DDM) function that reports live operating temperature to the host device. You can access these metrics via standard switch CLI diagnostic tools or poll them remotely using SNMP.

Can I drop this 1470nm SFP+ module into our current CWDM filter tray alongside other wavelengths on one fiber pair?

Yes, it’s built for standard CWDM grid integration. Just patch it into your 1470nm MUX/DEMUX port, and it will run clean, multi-channel traffic over the same single-mode line with solid spectral stability.

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LINK-PP LS-CW4710-20C 10G SFP+ CWDM 1470nm 20km Duplex LC DDM SMF Optical Transceiver Module

Name: LINK-PP LS-CW4710-20C 10G SFP+ CWDM 1470nm 20km Duplex LC DDM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 188894
Price: 233.06 USD
Availability: InStock
Rating: 4.9 (40 reviews)

# 188894

Product: LINK-PP LS-CW4710-20C 10G SFP+ CWDM 1470nm 20km Duplex LC DDM SMF Optical Transceiver Module
SKU: 188894
P/N: LS-CW4710-20C
Price: $ 271
Stock: 365 in Stock
Sold: 650
Product URL: https://www.l-p.com/products/483200.htm

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Compatible:: Cisco; LINK-PP; Brocade; Ciena; Dell; FS; Generic; H3C; Juniper

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-CW4710-20C 10G SFP+ Specifications

LS-CW4710-20C is engineered as a 10G CWDM SFP+ optical transceiver centered at 1470nm, incorporating a cooled EML laser paired with a PIN photodiode to ensure stable optical output, supporting transmission distances up to 20km over single-mode fiber through a duplex LC interface, while enabling real-time digital diagnostic monitoring for continuous visibility into key operating parameters.

LINK-PP Part Number	LS-CW4710-20C	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1470nm	Max Cable Distance	20km
Connector	Duplex LC	Media	SMF
Transmitter Type	EML	Receiver Type	PIN
TX Power	-1 to +5dBm	RX Power	-23 to -6dBm
Receiver Sensitivity	<-16dBm	Receiver Overload	0dBm
Operating Temperature Range	0 to 70°C	Protocols	SFP+ MSA Compliant, CPRI, eCPRI, ITU-T G.652

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Q: Do we need multi-mode fiber or single-mode fiber patch cords for our CWDM MUX panel connection? By S***y on 2026-03-25

A: Single-mode fiber is mandatory for this link. Multi-mode fiber causes severe optical dispersion and attenuation at 1470nm, whereas duplex LC single-mode patch cords ensure optimal signal transmission and full 20km optical reach. By admin on 2026-03-26
Q: Can we monitor internal transceiver temperature in real time inside densely populated switch faceplates? By I***h on 2025-08-24

A: Yes. This transceiver features a Digital Diagnostic Monitoring (DDM) function that reports live operating temperature to the host device. You can access these metrics via standard switch CLI diagnostic tools or poll them remotely using SNMP. By admin on 2025-08-25
Q: Can I drop this 1470nm SFP+ module into our current CWDM filter tray alongside other wavelengths on one fiber pair? By N***r on 2025-04-04

A: Yes, it’s built for standard CWDM grid integration. Just patch it into your 1470nm MUX/DEMUX port, and it will run clean, multi-channel traffic over the same single-mode line with solid spectral stability. By admin on 2025-04-05

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B***n

Iran, Islamic Republic of

Verified Purchase

5 .0

2026-05-19

This commercial-grade 10G SFP+ optical module worked well in a temperature-controlled rack at our warehouse campus. The Duplex LC interface fit our existing patching layout, and the 1470nm channel did not interfere with the other CWDM wavelengths.

83 Helpful vote Comments

B***n

France

Verified Purchase

5 .0

2026-04-25

Leased a dark fiber strand between two office facilities 16km apart. This 20km 10G CWDM module closed the link budget effortlessly with plenty of margin to spare. A practical and economical choice for short-to-medium CWDM spans.

92 Helpful vote Comments

C***r

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2026-03-27

Clean optical power levels on our 18km span with zero bit errors.

59 Helpful vote Comments

B***n

Brazil

Verified Purchase

4 .0

2026-02-18

The 10G SFP+ CWDM 1470nm 20km transceiver module itself works flawlessly once installed—plugged right in, DDM readouts were spot on, and the 1470nm link came up immediately over our 15km single-mode fiber run. However, local customs holding and courier transit took three days longer than expected, which slightly shifted our maintenance window. Optics are top tier, just plan a bit of extra buffer time for international shipping!

26 Helpful vote Comments

H***t

Maldives

Verified Purchase

5 .0

2026-02-06

Installed these LS-CW4710-20C CWDM SFP+ modules in a CWDM MUX/DEMUX setup for a regional office network. All transceivers negotiated cleanly at 10G over OS2 single-mode fiber. The optical transmit and receive power stayed consistent after several weeks of normal traffic.

69 Helpful vote Comments

E***n

Japan

Verified Purchase

5 .0

2026-01-31

Added this 10G SFP+ module to our passive CWDM MUX/DEMUX system to multiplex multiple channels onto one SMF line. Channel isolation is clean, and the 1470nm channel locked in without any optical drift. Couldn't ask for a smoother install.

87 Helpful vote Comments

J***d

Lithuania

Verified Purchase

5 .0

2025-12-26

Reliable 10G SFP+ CWDM module at a sensible project cost.

48 Helpful vote Comments

B***r

India

Verified Purchase

5 .0

2025-12-01

As part of a regional communications infrastructure upgrade, we integrated these commercial-grade 10G CWDM optics into backhaul aggregation nodes located inside controlled indoor enclosures. Operating on the standard 1470nm channel, these modules seamlessly multiplexed with other CWDM wavelengths over a single dark fiber strand, eliminating the need for expensive new civil engineering fiber digs. Throughout a two-week stress test involving peak-hour data loads, optical return loss remained excellent and no signal degradation was recorded. Digital Optical Monitoring (DOM) metrics verified that laser bias current and transmitter output power remained completely stable. Highly recommended for network engineers needing standardized, cost-effective CWDM hardware for metropolitan and enterprise aggregation layers.

119 Helpful vote Comments

B***y

United States

Verified Purchase

5 .0

2025-11-02

Expanding our regional metro ring on a budget can be tricky, but this module hit the exact 1470nm grid channel required by our passive filter array. Optical power output matched the datasheet specifications precisely. Will buy more for phase two.

105 Helpful vote Comments

C***n

Nepal

Verified Purchase

5 .0

2025-10-19

Good choice for a 10G CWDM 1470nm 20km connection when you need to reuse an existing fiber pair. We checked the DDM data before and after installation and found no unexpected optical loss. Easy win for our network refresh.

112 Helpful vote Comments

E***s

United Arab Emirates

Verified Purchase

5 .0

2025-09-14

For a building-to-building CWDM upgrade, this 20km 1470nm SFP+ module was a practical fit. It allowed us to add capacity without pulling another fiber cable. The duplex LC connector format also matched our installed OS2 infrastructure.

96 Helpful vote Comments

C***s

Belarus

Verified Purchase

5 .0

2025-08-27

The 1470nm 10G CWDM SFP+ came online immediately and DOM readings looked clean.

46 Helpful vote Comments

D***y

United Kingdom

Verified Purchase

5 .0

2025-08-17

We deployed these LS-CW4710-20C 10G CWDM optical modules during a campus fiber consolidation project. The goal was to carry separate 10GbE services over existing OS2 single-mode fiber without adding new cable paths, so channel accuracy mattered just as much as link stability. Each 1470nm module was installed through a CWDM MUX/DEMUX pair, and all links came up at 10Gbps without CRC errors. We also used the SFF-8472 DOM information to record TX power, RX power, module temperature, and supply readings at handover. That made our acceptance testing faster and gave the operations team a useful baseline for future troubleshooting.

126 Helpful vote Comments

A***e

Mexico

Verified Purchase

4 .0

2025-07-22

Order was held up at the regional customs hub for two days for routine clearance checks, which was a bit frustrating for our rollout schedule. Once the package arrived, the optical modules performed exactly as specified. Recognized instantly by our aggregation switch, zero frame drops on a 12km link, and clean optical diagnostic readings. Excellent hardware value, just keep an eye on international transit timelines. Custom clearance delay was the only downside!

31 Helpful vote Comments

J***z

Morocco

Verified Purchase

5 .0

2025-07-06

The 1470nm optical wavelength is perfectly calibrated for our coarse wavelength division multiplexing filter.

74 Helpful vote Comments

B***r

Argentina

Verified Purchase

5 .0

2025-06-09

The module itself performs as expected and the 1470nm channel tested cleanly on our CWDM system. It is not the cheapest optic for a small project, but the diagnostics and 20km reach justify the spend when the fiber route requires it.

94 Helpful vote Comments

C***l

Macao

Verified Purchase

5 .0

2025-05-22

We used this 1470nm CWDM SFP+ transceiver to extend a 10GbE link between two buildings on our business campus. The 20km rating gave us enough headroom for the actual fiber route, and the Duplex LC ports made the swap straightforward. DOM values were visible right away, which helped during commissioning.

104 Helpful vote Comments

A***l

Republic of Korea

Verified Purchase

4 .0

2025-04-12

No issue with the optics at all — they were clean, sealed, and ready to deploy. The outer carton picked up some scuffs on the international route, which made the delivery look rougher than it was.

23 Helpful vote Comments

D***e

Germany

Verified Purchase

5 .0

2025-04-11

Upgraded our cross-building link using single-mode OS2 patch cables and this 1470nm optics unit. Handled continuous 10Gbps traffic loads comfortably during heavy backup cycles while remaining well inside standard operating temperature ranges.

112 Helpful vote Comments

K***y

Brunei Darussalam

Verified Purchase

5 .0

2025-03-12

Matched our CWDM channel plan perfectly and linked at 10G on first insert.

53 Helpful vote Comments

B***n

Canada

Verified Purchase

5 .0

2025-03-03

This was used for a remote radio-site backhaul upgrade where the actual route measured just under 19km, including patch panels and splices. The cooled EML transmitter and PIN receiver combination provided enough margin for our measured loss budget, while the 1470nm CWDM wavelength fit the available channel plan. We monitored optical levels through the switch during burn-in and saw stable values over continuous traffic testing. Since this is a 0–70°C commercial module, we placed it in a conditioned indoor communications cabinet rather than an exposed outdoor enclosure. For indoor telecom aggregation, it has been a dependable option.

132 Helpful vote Comments

G***h

Bangladesh

Verified Purchase

5 .0

2025-02-19

Our field team used these 1470nm CWDM modules for a fiber backhaul test between a remote site and the main equipment room. The cooled EML optics gave us stable 10Gbps performance, and the PIN receiver showed comfortable receive levels on the 17km route.

120 Helpful vote Comments

C***r

Cambodia

Verified Purchase

5 .0

2025-01-29

Great optical budget, clean LC connection, and stable link so far.

57 Helpful vote Comments

C***e

Australia

Verified Purchase

5 .0

2025-01-18

Our data-center operations team ordered these SFP+ optical modules as part of a larger batch for cross-site 10G interconnects. Before rollout, we validated compatibility coding across several host platforms and checked EEPROM data, DOM visibility, and link recovery after repeated hot swaps. The modules passed our standard tests: optical spectrum check, sustained traffic, link flap recovery, and receive-power verification. In production, these 1470nm CWDM SFP+ modules have delivered stable transport across single-mode fiber routes ranging from 14km to nearly 20km.

140 Helpful vote Comments

A***n

United States

Verified Purchase

5 .0

2024-12-26

Product as described.

20 Helpful vote Comments

M***z

Singapore

Verified Purchase

5 .0

2024-11-14

I've always had excellent experience with l-p.com and their products.

28 Helpful vote Comments

Z***a

United States

Verified Purchase

5 .0

2024-08-15

First purchase! Good price and Fast shipping. I will test it and give some feedback soon.

49 Helpful vote Comments

E***e

Spain

Verified Purchase

5 .0

2024-07-14

The price is reasonable. I always save money when I shop with l-p.com.

52 Helpful vote Comments

J***e

Belarus

Verified Purchase

5 .0

2024-07-12

Perfect. I would happily buy from them again.

57 Helpful vote Comments

R***a

Canada

Verified Purchase

5 .0

2024-07-01

High range of goods to choose from.

31 Helpful vote Comments

J***m

Finland

Verified Purchase

5 .0

2024-06-27

The 10/25/40G Transceiver Modules with is really what I needed.Will come back to buy more.

24 Helpful vote Comments

N***h

Macao

Verified Purchase

5 .0

2024-04-09

Excellent service, this is a company that I will continue to purchase items from!

26 Helpful vote Comments

C***d

Nepal

Verified Purchase

5 .0

2024-03-08

Great service and product! The quality is fantastic. The team at Fiberstore was extremely responsive to all my questions

53 Helpful vote Comments

K***s

Brazil

Verified Purchase

5 .0

2024-02-29

Good product for its price, Fast delivery and quick response from the seller.

49 Helpful vote Comments

G***y

Cambodia

Verified Purchase

5 .0

2023-11-07

My first experience with you guys. Was very pleased. Prices were excellent. I was REALLY happy with the customer service. Fast and reliable. I'll shop at the site again definitely.

48 Helpful vote Comments

C***o

Romania

Verified Purchase

5 .0

2023-10-18

Very high quality. I ordered several of them and had no problems with any of them

32 Helpful vote Comments

A***e

Belarus

Verified Purchase

5 .0