Can this Duplex LC module pass traffic if one fiber strand is slightly pinched or bent?

No, Duplex LC setups require both paths to be clean; a pinched strand will immediately cause high CRC errors or drop the link.

Can we run this transceiver through multiple optical patch panels across a campus before hitting our 20km limit?

Yes, but keep an eye on your link loss budget. Every patch panel adds light attenuation, so make sure your total link loss doesn't exceed the module's power budget.

Can I patch this 1350nm module directly into a standard 1310nm optical port or Mux?

No, this is a dedicated CWDM 1350nm module. It must match a 1350nm channel port on a passive CWDM Mux/Demux to function correctly.

Is this 10G CWDM transceiver hot-swappable, or do I need to reload the switch line card when inserting it?

It is 100% hot-pluggable. You can slide it in or swap it out anytime without interrupting other active ports on the switch.

Does the module shell have built-in EMI shielding for high-density, high-interference RF server environments?

Yes, the all-metal zinc alloy housing offers superb electromagnetic interference (EMI) protection, which is essential for busy telecom racks.

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Generic CWDM-SFP10G-20S Compatible LINK-PP 10G SFP+ CWDM 1350nm 20km Duplex LC DOM SMF Optical Transceiver Module

Name: Generic CWDM-SFP10G-20S Compatible LINK-PP 10G SFP+ CWDM 1350nm 20km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 221897
Price: 202.1 USD
Availability: InStock
Rating: 4.9 (9 reviews)

# 221897

Product: Generic CWDM-SFP10G-20S Compatible LINK-PP 10G SFP+ CWDM 1350nm 20km Duplex LC DOM SMF Optical Transceiver Module
SKU: 221897
P/N: LS-CW3510-20C
Price: $ 235
Stock: 79 in Stock
Sold: 1.2K
Product URL: https://www.l-p.com/products/494619.htm

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Manufacture: LINK-PP

P/N: LS-CW3510-20C

Compatible:: Cisco; LINK-PP; Brocade; Ciena; Dell; FS; Generic; H3C; HPE; 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-20S Compatible LINK-PP 10G SFP+ Specifications

Designed for advanced single-mode fiber networks, the CWDM-SFP10G-20S operates as a 10G SFP+ CWDM duplex LC transceiver that pairs a precision 1350nm DFB laser with a PIN photodiode to span 20km distances under a single +3.3V power supply, all while featuring real-time Digital Optical Monitoring (DOM) for precise optical parameter tracking.

Generic Part Number	CWDM-SFP10G-20S	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1350nm	Max Cable Distance	20km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-5 to +2dBm	RX Power	-16 to -1dBm
Receiver Sensitivity	<-15.5dBm	DOM 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 1270-1450.pdf

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Q: Can this Duplex LC module pass traffic if one fiber strand is slightly pinched or bent? By H***w on 2026-04-14

A: No, Duplex LC setups require both paths to be clean; a pinched strand will immediately cause high CRC errors or drop the link. By admin on 2026-04-15
Q: Can we run this transceiver through multiple optical patch panels across a campus before hitting our 20km limit? By L***s on 2026-02-27

A: Yes, but keep an eye on your link loss budget. Every patch panel adds light attenuation, so make sure your total link loss doesn't exceed the module's power budget. By admin on 2026-02-28
Q: Can I patch this 1350nm module directly into a standard 1310nm optical port or Mux? By J***d on 2026-01-03

A: No, this is a dedicated CWDM 1350nm module. It must match a 1350nm channel port on a passive CWDM Mux/Demux to function correctly. By admin on 2026-01-04
Q: Is this 10G CWDM transceiver hot-swappable, or do I need to reload the switch line card when inserting it? By K***e on 2025-07-10

A: It is 100% hot-pluggable. You can slide it in or swap it out anytime without interrupting other active ports on the switch. By admin on 2025-07-11
Q: Does the module shell have built-in EMI shielding for high-density, high-interference RF server environments? By I***e on 2025-03-27

A: Yes, the all-metal zinc alloy housing offers superb electromagnetic interference (EMI) protection, which is essential for busy telecom racks. By admin on 2025-03-28

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B***t

Taiwan, Province of China

Verified Purchase

5 .0

2026-04-30

Flawless 10G CWDM links. Swapped out generic optics for these LINK-PP 1350nm modules in our main campus ring, and they clicked right in without an issue.

119 Helpful vote Comments

F***l

United States

Verified Purchase

5 .0

2026-03-06

We migrated our core switches to 10G and needed a specific 1350nm channel for our grid. LINK-PP offered a perfect balance of reliability and affordability. They slide into the cages seamlessly, and the bale clasp mechanisms feel rugged enough for multiple hot-swaps.

125 Helpful vote Comments

D***x

Japan

Verified Purchase

5 .0

2026-01-09

Used these 10G 1350nm SFP+ optics for expanding our local wireless base station backhaul runs. The 20km range over single-mode fiber gives us plenty of optical margin. Even in a dense patch panel setup, the heat dissipation is quite acceptable. Will buy more for the next phase.

131 Helpful vote Comments

F***m

Belgium

Verified Purchase

4 .0

2026-01-06

These 1350nm SFP modules work exactly as advertised in our campus core switches. The 20km link is perfectly stable. My only complaint is that the package spent 3 days sitting at the local customs hub waiting for routine clearance paperwork. The hardware itself is top-notch!

33 Helpful vote Comments

A***h

Singapore

Verified Purchase

5 .0

2025-12-03

Our field deployment team was tasked with linking a remote engineering laboratory to our primary data center over a long span of single-mode fiber infrastructure. The measured line attenuation was quite close to the maximum budget for typical 20km optics due to several legacy patch fields. However, these LINK-PP LS-CW3510-20C Duplex LC SMF modules exhibited excellent receiver sensitivity. We subjected the link to a 48-hour RFC 2544 bit error rate test (BERT) at full 10Gbps throughput, and it came back with zero dropped packets and absolute frame consistency. The mechanical build quality is top-notch; the LC duplex receptacle provides a reassuringly positive click engagement.

158 Helpful vote Comments

C***e

Ireland

Verified Purchase

5 .0

2025-09-27

As a regional ISP, we require robust, commercial-grade optical transceivers that don't fail during hot summer days in indoor server rooms. The LINK-PP LS-CW3510-20C has proved to be exceptionally resilient. Even when the ambient rack temperatures hit the upper limits of our commercial grade 0-70°C specifications, the internal MCU maintains stable bias currents for the 1350nm laser. The module complies perfectly with MSA protocols, allowing it to be hot-plugged directly into our devices without throwing kernel panic logs or unmanaged physical interface status states. The data throughput remains steady at 10Gbps under full broadband carrier load tests.

96 Helpful vote Comments

A***r

Lithuania

Verified Purchase

5 .0

2025-08-19

Perfect for our 1350nm Mux. Clean signals across our passive CWDM network infrastructure, zero CRC alignment errors.

58 Helpful vote Comments

G***s

France

Verified Purchase

5 .0

2025-06-04

Bought these CWDM SFP modules for an enterprise network expansion project. They are packaged in standard industrial blister boxes—nothing fancy, but highly functional. On the technical side, the 20km Duplex LC optics perform beautifully on our single-mode fiber infrastructure runs. Zero CRC errors recorded.

44 Helpful vote Comments

E***l

Republic of Korea

Verified Purchase

5 .0

2025-03-19

We deployed a batch of LINK-PP LS-CW3510-20C SFP+ modules across our multi-tenant metro ring network. When dealing with grid upgrades, ensuring the 1350nm DFB laser stays true to its wavelength center under high switch chassis port density is critical. These modules maintained an incredibly tight spectral width. The DOM parameters integrated flawlessly via SNMP into our network management software, providing accurate real-time metrics on laser bias current and received optical power. For network engineers searching for reliable, budget-friendly 10G SFP+ CWDM 1350nm 20km transceiver modules, this is a phenomenal alternative to high-priced first-party components.

126 Helpful vote Comments