Our network management system polls SFF-8472 registers via SNMP — does this CWDM SFP+ module report live light levels correctly?

Absolutely, it fully supports SFF-8472 compliant real-time Digital Diagnostic Monitoring (DOM) for reading live temperature, voltage, and Rx/Tx power.

We have a 17km single-mode link with two patch panels — does the PIN photodiode have enough sensitivity?

Yes, the combination of the cooled EML laser and high-sensitivity PIN receiver provides ample optical power budget for 20km single-mode fiber links.

Can I hot-swap this 1590nm CWDM module directly into a running core switch port without disrupting adjacent 10G traffic?

Absolutely, its hot-pluggable SFP+ footprint and low power draw allow safe live insertion with minimal risk of voltage drops or link flaps on neighboring ports.

Can we aggregate this LS-CW5910-20C 10G SFP+ module with other CWDM channels into a passive 18-channel Mux/Demux?

Yes, its 1590nm wavelength strictly complies with the ITU-T CWDM grid for seamless multiplexing into passive CWDM systems.

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Generic CWDM-SFP10G-20L Compatible LINK-PP 10G SFP+ CWDM 1590nm 20km Duplex LC DDM SMF Optical Transceiver Module

Name: Generic CWDM-SFP10G-20L Compatible LINK-PP 10G SFP+ CWDM 1590nm 20km Duplex LC DDM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 222472
Price: 233.06 USD
Availability: InStock
Rating: 4.9 (25 reviews)

# 222472

Product: Generic CWDM-SFP10G-20L Compatible LINK-PP 10G SFP+ CWDM 1590nm 20km Duplex LC DDM SMF Optical Transceiver Module
SKU: 222472
P/N: LS-CW5910-20C
Price: $ 271
Stock: 392 in Stock
Sold: 627
Product URL: https://www.l-p.com/products/494655.htm

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Manufacture: LINK-PP

P/N: LS-CW5910-20C

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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Generic CWDM-SFP10G-20L Compatible LINK-PP 10G SFP+ Specifications

CWDM-SFP10G-20L represents a 10G CWDM SFP+ optical transceiver at 1590nm, utilizing a cooled EML laser and PIN photodiode to achieve reliable duplex LC optical links over single-mode fiber up to 20km, with built-in digital diagnostic monitoring for ongoing system visibility.

Generic Part Number	CWDM-SFP10G-20L	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1590nm	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	DDM Support	Yes
Operating Temperature Range	0 to 70°C	Protocols	SFP+ MSA Compliant, CPRI, eCPRI, ITU-T G.652

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LS-CWxx10-20C 1471-1611.pdf

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Q: Our network management system polls SFF-8472 registers via SNMP — does this CWDM SFP+ module report live light levels correctly? By R***h on 2026-03-10

A: Absolutely, it fully supports SFF-8472 compliant real-time Digital Diagnostic Monitoring (DOM) for reading live temperature, voltage, and Rx/Tx power. By admin on 2026-03-11
Q: We have a 17km single-mode link with two patch panels — does the PIN photodiode have enough sensitivity? By H***s on 2026-01-11

A: Yes, the combination of the cooled EML laser and high-sensitivity PIN receiver provides ample optical power budget for 20km single-mode fiber links. By admin on 2026-01-12
Q: Can I hot-swap this 1590nm CWDM module directly into a running core switch port without disrupting adjacent 10G traffic? By W***s on 2025-08-02

A: Absolutely, its hot-pluggable SFP+ footprint and low power draw allow safe live insertion with minimal risk of voltage drops or link flaps on neighboring ports. By admin on 2025-08-03
Q: Can we aggregate this LS-CW5910-20C 10G SFP+ module with other CWDM channels into a passive 18-channel Mux/Demux? By C***e on 2025-05-28

A: Yes, its 1590nm wavelength strictly complies with the ITU-T CWDM grid for seamless multiplexing into passive CWDM systems. By admin on 2025-05-29

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A***n

Italy

Verified Purchase

5 .0

2026-02-16

We tested these optics across several supported switch platforms in our lab before approving them for customer sites. The goal was to standardize a cost-conscious 10G CWDM solution for office parks and small data-center interconnects, rather than stocking a different optic for every project. Recognition was consistent in the approved host configurations, and the modules maintained stable links during long-duration traffic tests. In production, one pair now carries database replication over an 18.5km SMF route. The route is close enough to the 20km limit that we paid attention to the optical budget, and the DOM readings gave us confidence during sign-off. Performance has been reliable, power draw is reasonable for a dense SFP+ environment, and the 1590nm channel fits neatly into our CWDM inventory strategy.

100 Helpful vote Comments

B***d

Japan

Verified Purchase

5 .0

2026-02-03

Good optical power margin and reliable Duplex LC connectivity.

74 Helpful vote Comments

K***r

Canada

Verified Purchase

5 .0

2026-01-27

Bought a small batch for our CWDM MUX/DEMUX project where fiber availability is limited. The 1590nm channel matched our wavelength plan, and the 20km reach was a better fit than paying for longer-reach optics we did not need. Nice, straightforward 10G CWDM transceiver.

97 Helpful vote Comments

U***n

France

Verified Purchase

4 .0

2026-01-05

Transceiver works perfectly at 10G 1590nm with excellent link margin over 14km. Only knocked off one star because customs clearance took two days longer than expected at the Paris hub.

27 Helpful vote Comments

T***r

Singapore

Verified Purchase

5 .0

2025-12-18

Integrating 10G CWDM channels into our existing dark fiber rings required strict adherence to ITU-T G.694.2 grid specifications. The LS-CW5910-20C 1590nm CWDM transceiver module proved exceptional. Installed 24 units across our distribution layer to consolidate multiple 10G Ethernet feeds over single optical pairs. The duplex LC SMF interface secured firmly with standard patch cables. DOM monitoring accurately reported real-time internal temperature, supply voltage, laser bias current, and optical power metrics. Operating temperature stayed stable within commercial ranges (0°C to 70°C) inside fully populated 48-port top-of-rack switches. Excellent enterprise optics option!

105 Helpful vote Comments

V***m

Brazil

Verified Purchase

5 .0

2025-12-04

The module arrived coded for our supported 10G SFP+ hosts and was recognized without extra work. Duplex LC patching kept the install simple, and the EML/PIN design gave us dependable signal levels across our single-mode fiber route.

82 Helpful vote Comments

E***n

United States

Verified Purchase

5 .0

2025-11-18

Clean 10G CWDM 1590nm link over our 18km single-mode fiber run — DOM readings looked right from day one.

63 Helpful vote Comments

O***s

Philippines

Verified Purchase

4 .0

2025-10-23

Performance is good on our 15km SMF link, with stable optical readings and no data errors. I would have preferred more protective padding inside the parcel because the boxes could shift slightly in transit, but the modules themselves were undamaged.

23 Helpful vote Comments

N***n

Republic of Korea

Verified Purchase

5 .0

2025-10-08

We were scaling our metro distribution nodes and needed reliable 20km 1590nm CWDM 10G SFP+ modules. The duplex LC interface locks cleanly, and transmission quality over standard G.652 single-mode fiber is flawless. Great value for enterprise deployments!

73 Helpful vote Comments

P***s

Spain

Verified Purchase

5 .0

2025-09-02

This module was installed as part of a small CWDM expansion for a customer who had only one usable single-mode fiber pair between facilities. The design used separate wavelengths through passive CWDM equipment, with 1590nm allocated to a dedicated 10GbE application. At roughly 12km, the route is well inside the module’s 20km maximum distance, but we still verified loss, connector cleanliness, and DOM values before handover. The optical diagnostics were especially useful during commissioning because they gave both our field engineer and the customer’s IT team a shared reference point. We saw stable received power and no intermittent behavior during sustained traffic tests. For organizations building a compact campus network or metro Ethernet extension, this 1590nm CWDM SFP+ module is an easy option when commercial temperature operation is appropriate.

128 Helpful vote Comments

U***r

France

Verified Purchase

5 .0

2025-08-09

We used this LS-CW5910-20C 1590nm CWDM SFP+ module to extend a 10GbE connection between two buildings. It came up immediately on our existing single-mode fiber, and the DOM values made acceptance testing much faster. No alarms or packet loss after the first month.

89 Helpful vote Comments

E***r

Mexico

Verified Purchase

5 .0

2025-06-30

Ordered two dozen of these LS-CW5910-20C CWDM transceivers for a campus fiber ring expansion. The 1590nm optics slotted right into our passive Mux/Demux tray with no insertion loss surprises. DOM telemetry reports exact Tx/Rx power levels on our management console. (⁠•⁠‿⁠•⁠)

111 Helpful vote Comments

W***n

Germany

Verified Purchase

5 .0

2025-04-22

Plugged right into our CWDM Mux, grabbed link immediately at 1590nm with zero CRC errors!

42 Helpful vote Comments

K***r

Russian Federation

Verified Purchase

4 .0

2025-02-28

Hardware performance is 100% as advertised on 1590nm wavelength and 20km SMF distance. Order tracking update was delayed by 24 hours during transit, but product quality is great.

18 Helpful vote Comments

F***s

Australia

Verified Purchase

5 .0

2025-01-15

Installed 20 of these 1590nm CWDM modules for a short metro aggregation link at just under 16km. TX/RX power and module temperature are visible through DOM, which is useful when field teams need to confirm fiber loss remotely. So far, the link has been very stable.

133 Helpful vote Comments

S***g

Philippines

Verified Purchase

5 .0

2024-07-01

answer my question very quick, thanks to that I bought this item

24 Helpful vote Comments

D***n

Germany

Verified Purchase

5 .0

2024-04-19

They are of very good quality

38 Helpful vote Comments

E***g

Canada

Verified Purchase

5 .0

2024-01-06

Outstanding service and delivery.

32 Helpful vote Comments

N***e

Canada

Verified Purchase

5 .0

2023-11-26

The products I received works well now. You are the best platform to buy the 10/25/40G Transceiver Modules products. Thank you.

60 Helpful vote Comments

S***n

United Arab Emirates

Verified Purchase

5 .0

2023-11-03

Awesome service and great price. Will recommend this company to my friends and family.

89 Helpful vote Comments

S***a

Netherlands

Verified Purchase

5 .0

2023-07-14

work good without any issue. Easy to navigate website, check-out Fast and efficient. Highly recommended and great prices and cheaper than many other stores.Will buy more here in the future.

28 Helpful vote Comments

A***a

Hong Kong

Verified Purchase

5 .0

2023-05-04

it’s always a pleasure to do business with LINK-PP.

58 Helpful vote Comments

S***n

Russian Federation

Verified Purchase

5 .0