Can I couple this module directly into a legacy 62.5-micron multimode fiber using a mode-conditioning patch cable?

No, this is a dedicated high-power single-mode CWDM laser that requires standard Single-Mode Fiber (SMF) to maintain link stability and reach.

Can we track localized internal voltage dips through the SFF-8472 DDM architecture if our switch chassis experiences power fluctuations?

Yes, the integrated DDM telemetry updates supply voltage and internal module temperature parameters every few seconds directly to your SNMP monitoring stack.

Is this 1390nm 10G SFP module suitable for handling latency-sensitive CPRI mobile backhaul traffic streams?

Absolutely. The direct-modulation laser path features near-zero internal processing latency, making it ideal for strict synchronous telco timing architectures.

If our CWDM channel grid shifts, can this transceiver be software-tuned to a different wavelength?

No, this is a fixed-wavelength 1390nm SFP transceiver module and cannot be tuned via software commands.

Will the zinc alloy outer shell protect the internal circuit board from electromagnetic interference in a high-density chassis?

Yes, the full metal housing provides excellent EMI shielding and minimizes signal crosstalk between closely stacked SFP+ ports.

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H3C CWDM-SFP10G-1390-20 Compatible LINK-PP 10G SFP+ CWDM 1390nm 20km Duplex LC DDM SMF Optical Transceiver Module

Name: H3C CWDM-SFP10G-1390-20 Compatible LINK-PP 10G SFP+ CWDM 1390nm 20km Duplex LC DDM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 221994
Price: 202.96 USD
Availability: InStock
Rating: 5 (13 reviews)

# 221994

Product: H3C CWDM-SFP10G-1390-20 Compatible LINK-PP 10G SFP+ CWDM 1390nm 20km Duplex LC DDM SMF Optical Transceiver Module
SKU: 221994
P/N: LS-CW3910-20C
Price: $ 236
Stock: 89 in Stock
Sold: 845
Product URL: https://www.l-p.com/products/491984.htm

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Manufacture: LINK-PP

P/N: LS-CW3910-20C

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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H3C CWDM-SFP10G-1390-20 Compatible LINK-PP 10G SFP+ Specifications

CWDM-SFP10G-1390-20 is a specialized 10G SFP+ CWDM optical transceiver module engineered for 20km duplex LC single-mode fiber links, leveraging a precise 1390nm DFB laser and highly sensitive PIN photodiode coupled with integrated digital diagnostic monitoring (DDM) to ensure deterministic signal integrity.

H3C Part Number	CWDM-SFP10G-1390-20	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1390nm	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 I couple this module directly into a legacy 62.5-micron multimode fiber using a mode-conditioning patch cable? By Y***e on 2026-01-10

A: No, this is a dedicated high-power single-mode CWDM laser that requires standard Single-Mode Fiber (SMF) to maintain link stability and reach. By admin on 2026-01-11
Q: Can we track localized internal voltage dips through the SFF-8472 DDM architecture if our switch chassis experiences power fluctuations? By M***e on 2025-09-07

A: Yes, the integrated DDM telemetry updates supply voltage and internal module temperature parameters every few seconds directly to your SNMP monitoring stack. By admin on 2025-09-08
Q: Is this 1390nm 10G SFP module suitable for handling latency-sensitive CPRI mobile backhaul traffic streams? By J***n on 2025-07-10

A: Absolutely. The direct-modulation laser path features near-zero internal processing latency, making it ideal for strict synchronous telco timing architectures. By admin on 2025-07-11
Q: If our CWDM channel grid shifts, can this transceiver be software-tuned to a different wavelength? By S***d on 2025-05-18

A: No, this is a fixed-wavelength 1390nm SFP transceiver module and cannot be tuned via software commands. By admin on 2025-05-19
Q: Will the zinc alloy outer shell protect the internal circuit board from electromagnetic interference in a high-density chassis? By O***t on 2025-02-03

A: Yes, the full metal housing provides excellent EMI shielding and minimizes signal crosstalk between closely stacked SFP+ ports. By admin on 2025-02-04

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R***h

Ukraine

Verified Purchase

5 .0

2026-04-19

Fantastic value for ISP edge distribution. Using these modules to link an edge aggregation node back to the central office over single-mode fiber. It's tough to find reliable 1390nm 10G optics at this price tier. LINK-PP delivers.

38 Helpful vote Comments

S***h

Argentina

Verified Purchase

5 .0

2026-03-25

Perfect fit for high-density enterprise switch stacks. The low power dissipation of these commercial-grade modules keeps our rack thermal load fully manageable. Even when stacked closely together in a 48-port SFP+ switch, they run surprisingly cool.

45 Helpful vote Comments

J***y

Morocco

Verified Purchase

5 .0

2026-02-14

Clean optics. The duplex LC connector clicked right into our single-mode fiber patch cord.

37 Helpful vote Comments

A***e

Brunei Darussalam

Verified Purchase

5 .0

2026-01-17

Impressed with the Digital Optical Monitoring (DOM) integration. We track transceiver status via SNMP in our monitoring dashboard. These 10G 1390nm 20km transceivers show accurate TX/RX power levels and temperature metrics. No weird spikes or protocol-level glitches so far. Solid build quality!

46 Helpful vote Comments

S***e

Maldives

Verified Purchase

5 .0

2025-12-05

Rock solid CWDM SFP+ module. Running 20km backhaul with zero packet loss. (^_^)

21 Helpful vote Comments

K***h

South Africa

Verified Purchase

5 .0

2025-11-19

Accurate wavelength mapping. Matched these up with a third-party passive CWDM mux/demux panel. The 1390nm laser wavelength lines up precisely with the mux channel passband, keeping insertion loss minimal. Excellent performance.

65 Helpful vote Comments

M***y

United Arab Emirates

Verified Purchase

5 .0

2025-09-11

Excellent addition to our multi-wavelength transport network. We are utilizing the 1390nm grid channel for a high-speed storage area network (SAN) link. The duplex LC interface provides solid mechanical seating. Testing at the LINK-PP Test Support Center paid off—interoperability is 10/10.

112 Helpful vote Comments

K***y

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2025-08-09

Solid 20km optics. Upgraded our campus backbone, latency is non-existent.

20 Helpful vote Comments

D***t

Bangladesh

Verified Purchase

5 .0

2025-07-14

We recently upgraded our data center interconnects with a multi-channel CWDM framework, and these 10G SFP+ CWDM 1390nm modules were chosen for our primary backup syncing pipeline. The overall physical build quality feels incredibly solid, and the strong metal housing provides premium EMI shielding when packed tightly into high-density spine-and-leaf switches. Over our 14km single-mode fiber run, the 1390nm laser wavelength operates exactly as predicted with no water-peak attenuation issues. It integrates perfectly with our open-source monitoring tools.

121 Helpful vote Comments

T***t

New Zealand

Verified Purchase

5 .0

2025-06-04

Great stability in standard indoor network closets. Deployed these in our main building MDF. They have been running 24/7 for over one months now without a single flapping link or port reset. Will definitely look into LINK-PP for our next optical hardware refresh.

72 Helpful vote Comments

G***y

Belarus

Verified Purchase

5 .0

2025-04-29

Clean single-mode optical performance over 15km. Running these transceivers across a 15km dark fiber span between two corporate offices. Power budget is generous enough for a stable 20km reach, so our light levels are sitting comfortably in the sweet spot. No CRC errors on the port counters.

79 Helpful vote Comments

S***w

Nepal

Verified Purchase

5 .0

2025-03-05

We used the LS-CW3910-20C to map a dedicated 10G SAN replication path over a 19.5km dark fiber loop using the specific 1390nm channel slot. Even though we are operating right near the 20km maximum threshold for this single-mode module, the signal remains incredibly clean. The integrated DOM readout shows the RX power sitting safely above the receiver sensitivity limit, preventing link flapping. (ˊ•͈ ◡ •͈ˋ)

100 Helpful vote Comments

M***r

Taiwan, Province of China

Verified Purchase

5 .0

2025-02-16

Solid mechanical latch design. The bail clasp on these duplex LC transceivers feels rugged and clicks satisfyingly into place. No loose fittings or flimsy plastic pieces like some other generic third-party optics I’ve ordered in the past.

38 Helpful vote Comments