Can this 1430nm SFP module be used on a standard 100GHz or 50GHz DWDM grid splitter?

No, this is a dedicated 20nm spacing CWDM transceiver designed specifically for passive CWDM Mux/Demux infrastructure, not DWDM grids.

What happens to the 20km transmission limit if our dark fiber run includes multiple mechanical patch panels and fusion splices?

The 20km rating is an estimate based on standard fiber attenuation. You must calculate your total link budget to ensure insertion loss doesn't exceed the module's margin.

Is the 1430nm wavelength more susceptible to water-peak attenuation (E-band) on older legacy single-mode fiber?

Yes, older G.652A/B fibers may exhibit slightly higher loss at 1430nm compared to 1550nm, so we recommend sweeping your fiber line with an OTDR prior to deployment.

What is the typical optical power budget and receiver sensitivity for this 20km reach?

The module provides a minimum optical link budget of 10.5dB, featuring a high-sensitivity receiver rated down to -15.5dBm.

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LINK-PP LS-CW4310-20C 10G SFP+ CWDM 1430nm 20km Duplex LC DOM SMF Optical Transceiver Module

Name: LINK-PP LS-CW4310-20C 10G SFP+ CWDM 1430nm 20km Duplex LC DOM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 202538
Price: 203.82 USD
Availability: InStock
Rating: 4.9 (17 reviews)

# 202538

Product: LINK-PP LS-CW4310-20C 10G SFP+ CWDM 1430nm 20km Duplex LC DOM SMF Optical Transceiver Module
SKU: 202538
P/N: LS-CW4310-20C
Price: $ 237
Stock: 55 in Stock
Sold: 936
Product URL: https://www.l-p.com/products/492006.htm

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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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LINK-PP LS-CW4310-20C 10G SFP+ Specifications

LS-CW4310-20C, a specialized 10G SFP+ CWDM optical module, harnesses a 1430nm wavelength to deliver robust 10Gbps data streams across 20km of single-mode fiber via duplex LC connectivity. Ideal for modern high-density interconnect fabrics, it provides scalable and low-latency optical links across enterprise networks, data centers, and telecom infrastructures. The module is further backed by integrated DOM diagnostics, enabling real-time performance tracking to ensure peak operating reliability.

LINK-PP Part Number	LS-CW4310-20C	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1430nm	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	Receiver Overload	0.5dBm
Operating Temperature Range	0 to 70°C	Protocols	SFP+ MSA Compliant, CPRI, eCPRI, ITU-T G.652

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Q: Can this 1430nm SFP module be used on a standard 100GHz or 50GHz DWDM grid splitter? By Q***y on 2026-03-26

A: No, this is a dedicated 20nm spacing CWDM transceiver designed specifically for passive CWDM Mux/Demux infrastructure, not DWDM grids. By admin on 2026-03-27
Q: What happens to the 20km transmission limit if our dark fiber run includes multiple mechanical patch panels and fusion splices? By B***l on 2025-12-28

A: The 20km rating is an estimate based on standard fiber attenuation. You must calculate your total link budget to ensure insertion loss doesn't exceed the module's margin. By admin on 2025-12-29
Q: Is the 1430nm wavelength more susceptible to water-peak attenuation (E-band) on older legacy single-mode fiber? By T***e on 2025-08-04

A: Yes, older G.652A/B fibers may exhibit slightly higher loss at 1430nm compared to 1550nm, so we recommend sweeping your fiber line with an OTDR prior to deployment. By admin on 2025-08-05
Q: What is the typical optical power budget and receiver sensitivity for this 20km reach? By L***l on 2025-03-23

A: The module provides a minimum optical link budget of 10.5dB, featuring a high-sensitivity receiver rated down to -15.5dBm. By admin on 2025-03-24

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J***y

Singapore

Verified Purchase

5 .0

2026-04-01

We recently expanded our private cloud infrastructure, introducing an optical CWDM layer to bridge leaf-spine architectures across separate server halls. The LINK-PP 10G SFP+ 1430nm 20km Duplex LC modules were chosen for our specific wavelength allocation grid. Deploys of dozens of these units simultaneously can often reveal manufacturing variances, but LINK-PP demonstrated remarkable consistency. Every single module initialized with identical TX power ratings and clear DOM visibility. This level of quality at wholesale pricing completely changes the economics of private cloud data center scaling.

106 Helpful vote Comments

R***y

Ireland

Verified Purchase

5 .0

2026-03-19

Even though these are rated commercial grade, they are deployed in our well-ventilated outdoor telecom enclosure. Temperature stays around 45C and the DOM monitoring reports completely safe internal parameters.

47 Helpful vote Comments

J***t

Spain

Verified Purchase

5 .0

2026-02-28

Physical pull-tab isn't flimsy like some cheap clones. Duplex LC patch snapped right in, pulling full wire speed.

34 Helpful vote Comments

N***t

Bulgaria

Verified Purchase

5 .0

2026-01-04

We are using channel 1430nm for our secure offsite backup network. The Duplex LC optical transceivers fit snugly, snug latching mechanism, and no CRC errors reported under heavy 10G load tests. A+ pricing compared to OEM hardware.

75 Helpful vote Comments

C***h

Belgium

Verified Purchase

5 .0

2025-12-14

Ran a BERT loopback overnight on a dark fiber lease. Zero framing issues or CRC errors.

27 Helpful vote Comments

M***n

Hong Kong

Verified Purchase

5 .0

2025-11-03

In our sector, network stability and predictable latency are key performance indicators. We utilize the 1430nm CWDM channel to isolate ultra-low-latency financial market data feeds over a shared regional dark fiber network. The LINK-PP 10G SFP+ CWDM transceiver has exceeded our expectations. Physical testing on our digital oscilloscopes confirmed minimal jitter profile and extremely clean eye diagrams, indicating top-tier laser driver circuitry. The internal DOM telemetry operates seamlessly, allowing our monitoring tools to pull data via standard SFF-8472 registers without interrupting the data plane. The module operates flawlessly within its commercial temperature envelope, maintaining deterministic transmission times.

148 Helpful vote Comments

S***h

Romania

Verified Purchase

5 .0

2025-10-22

Unlike some cheap generic brands, this 10G SFP+ CWDM 20km module provides accurate diagnostic monitoring. Real-time TX/RX power and internal temperature readings are spot on via SNMP. Very helpful for proactive maintenance.

62 Helpful vote Comments

E***w

Indonesia

Verified Purchase

5 .0

2025-09-26

Running these 10G SFP+ CWDM optical modules on a 15km single-mode fiber link between corporate offices. Spectral stability is tight, no cross-talk with neighboring 1410nm or 1450nm channels on our passive mux. Very impressed by LINK-PP quality control.

71 Helpful vote Comments

L***h

Italy

Verified Purchase

5 .0

2025-08-24

We deploy a ton of these 10G CWDM modules for edge site aggregations. Haven't had one burn out on us yet.

46 Helpful vote Comments

B***g

Malaysia

Verified Purchase

4 .0

2025-07-31

Solid 1430nm optic, but lead time was longer than expected. The transceivers perform flawlessly in our switches and the DOM metrics are completely stable. My only gripe is that our bulk order took an extra 3 business days to ship out due to a temporary stock shortage on the 1430nm wave.

19 Helpful vote Comments

E***y

Denmark

Verified Purchase

5 .0

2025-07-19

Does exactly what a CWDM optic is supposed to do. Wavelength tuning is tight, running cool at 10G.

33 Helpful vote Comments

N***m

Iran, Islamic Republic of

Verified Purchase

5 .0

2025-06-29

As part of our data center interconnect (DCI) optimization project, we replaced legacy point-to-point single-mode fiber runs with a CWDM architecture. We selected the LINK-PP 10G SFP+ CWDM 1430nm modules to light up channel 5 on our multiplexers. The physical construction of these Duplex LC optical transceivers is outstanding—the pull-tab latch mechanism is rugged and prevents accidental disconnects in ultra-dense patch panels. On the software side, the EEPROM data is properly mapped to IEEE 802.3 and SFF-8472 standards. DDM readouts for laser bias current, internal module temperature, and supply voltage align perfectly with our hardware sensors. LINK-PP has proven to be an enterprise-grade partner for our infrastructure needs.

125 Helpful vote Comments

D***h

Poland

Verified Purchase

5 .0

2025-05-08

Needed to expand our dark fiber multiplexer capacity without digging new trenches. This 10G SFP+ 1430nm transceiver works smoothly with our existing CWDM Mux. Power budget is exactly as specified, reaching our remote node at 18km without issues.

59 Helpful vote Comments

B***n

Hungary

Verified Purchase

5 .0

2025-04-17

Perfect solution for high-density CWDM deployments. The physical build quality feels premium and standard compliance is strict. Lasers are highly stable even when the rack temperature fluxes during peak load cycles.

38 Helpful vote Comments

G***r

Austria

Verified Purchase

5 .0

2025-03-11

Standard 1430nm optic, clicked into place cleanly. Using it for a campus distribution link and the attenuation is well within spec.

11 Helpful vote Comments

V***t

Israel

Verified Purchase

5 .0

2025-02-02

Hard to find reliable 1430nm wavelengths at this price point. LINK-PP delivered exactly what was advertised. Fits standard SFP+ ports like a glove and parameters are fully visible in CLI.

35 Helpful vote Comments

E***s

Thailand

Verified Purchase

4 .0

2025-01-27

Flawless 1430nm transceivers, delayed customs clearance. The transceivers themselves are stellar. Plugged the 10G SFP+ CWDM module into our core switches and it immediately linked up with clean DOM diagnostics and zero CRC errors. The only downside was a 2-day customs delay at the border which pushed back our maintenance window.

14 Helpful vote Comments