We need these 1530nm CWDM modules for a metro fiber ring expansion — are volume discounts available?

Yes. Tiered pricing structures are available for bulk enterprise deployments and network expansion projects. Please provide your estimated module count to receive a formal volume quotation.

Will the LS-CW5310-20C integrate smoothly into an existing 8-channel CWDM multiplexer topology?

Assuming your passive MUX/DEMUX adheres to the standard 20nm CWDM channel grid, this module operates specifically on the 1530nm center wavelength. It will interface seamlessly with the designated 1530nm channel port, allowing you to run 10GbE traffic alongside other active channels on the same single-mode fiber pair.

Can we multiplex multiple 1530nm optical modules across a single fiber pair?

A standard passive MUX/DEMUX assigns a specific physical port to each ITU wavelength, so only one 1530nm transceiver can operate on that specific channel per fiber pair. Additional bandwidth is added by populating the remaining MUX channels with optics tuned to different CWDM wavelengths across the 20nm spacing grid.

Will our core switches recognize real-time DOM monitoring stats like laser bias and temp on this LS-CW5310-20C CWDM module?

In most cases, yes. The module strictly adheres to the SFF-8472 specification for Digital Diagnostics Monitoring, allowing compliant switch operating systems to poll live telemetry such as internal temperature, bias current, supply voltage, and optical power directly via SNMP or CLI commands.

Will the internal 1530nm cooled EML laser stay on frequency if our switch room hits 60°C during an AC outage?

Yes, the cooled EML laser actively stabilizes the 1530nm wavelength to prevent optical drift anywhere within its 0°C to +70°C operating window.

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LINK-PP LS-CW5310-20C 10G SFP+ CWDM 1530nm 20km Duplex LC DDM SMF Optical Transceiver Module

Name: LINK-PP LS-CW5310-20C 10G SFP+ CWDM 1530nm 20km Duplex LC DDM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 188954
Price: 233.06 USD
Availability: InStock
Rating: 4.9 (41 reviews)

# 188954

Product: LINK-PP LS-CW5310-20C 10G SFP+ CWDM 1530nm 20km Duplex LC DDM SMF Optical Transceiver Module
SKU: 188954
P/N: LS-CW5310-20C
Price: $ 271
Stock: 595 in Stock
Sold: 665
Product URL: https://www.l-p.com/products/483258.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-CW5310-20C 10G SFP+ Specifications

LS-CW5310-20C defines a CWDM 10G SFP+ optical transceiver designed for 1530nm operation, integrating a cooled EML laser and PIN photodiode, utilizing a duplex LC interface over single-mode fiber to enable transmission distances up to 20km, while supporting real-time digital diagnostic monitoring (DDM) for continuous parameter tracking.

LINK-PP Part Number	LS-CW5310-20C	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1530nm	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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Q: We need these 1530nm CWDM modules for a metro fiber ring expansion — are volume discounts available? By F***e on 2026-04-20

A: Yes. Tiered pricing structures are available for bulk enterprise deployments and network expansion projects. Please provide your estimated module count to receive a formal volume quotation. By admin on 2026-04-21
Q: Will the LS-CW5310-20C integrate smoothly into an existing 8-channel CWDM multiplexer topology? By O***h on 2026-02-21

A: Assuming your passive MUX/DEMUX adheres to the standard 20nm CWDM channel grid, this module operates specifically on the 1530nm center wavelength. It will interface seamlessly with the designated 1530nm channel port, allowing you to run 10GbE traffic alongside other active channels on the same single-mode fiber pair. By admin on 2026-02-22
Q: Can we multiplex multiple 1530nm optical modules across a single fiber pair? By T***n on 2025-12-14

A: A standard passive MUX/DEMUX assigns a specific physical port to each ITU wavelength, so only one 1530nm transceiver can operate on that specific channel per fiber pair. Additional bandwidth is added by populating the remaining MUX channels with optics tuned to different CWDM wavelengths across the 20nm spacing grid. By admin on 2025-12-15
Q: Will our core switches recognize real-time DOM monitoring stats like laser bias and temp on this LS-CW5310-20C CWDM module? By E***a on 2025-07-15

A: In most cases, yes. The module strictly adheres to the SFF-8472 specification for Digital Diagnostics Monitoring, allowing compliant switch operating systems to poll live telemetry such as internal temperature, bias current, supply voltage, and optical power directly via SNMP or CLI commands. By admin on 2025-07-16
Q: Will the internal 1530nm cooled EML laser stay on frequency if our switch room hits 60°C during an AC outage? By L***n on 2025-03-26

A: Yes, the cooled EML laser actively stabilizes the 1530nm wavelength to prevent optical drift anywhere within its 0°C to +70°C operating window. By admin on 2025-03-27

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T***r

Iran, Islamic Republic of

Verified Purchase

5 .0

2026-04-11

Deployed a batch of these 10G CWDM 1530nm SFP+ modules for our enterprise campus distribution backbone. Signal attenuation over our 16km single-mode fiber link stayed well within operational margins, and real-time DOM monitoring worked seamlessly across our management software.

80 Helpful vote Comments

B***n

France

Verified Purchase

5 .0

2026-04-03

This is a practical commercial-grade 10G SFP+ CWDM optical module for indoor network rooms and distributed office sites. It worked well on our 20 km SMF path and did not show link flaps during the first month. Good choice when you need more capacity from an existing fiber pair.

111 Helpful vote Comments

R***n

Brazil

Verified Purchase

5 .0

2026-03-30

We bought these optical modules for a phased multi-site deployment, including office-to-warehouse links and a remote server room. The important requirement was a reliable 10G CWDM optical module on 1530nm over up to 20km of single-mode fiber, with OEM-compatible coding available for different hardware estates. Pre-deployment testing went smoothly, and the modules seated firmly in standard SFP+ cages. The optical monitoring helped us quickly identify one dirty patch lead during commissioning—the RX power reading was noticeably lower than the other circuits. After cleaning and replacing that jumper, the level returned to normal. That is exactly why we specify DOM-enabled 10G SFP+ transceivers for managed infrastructure.

126 Helpful vote Comments

C***r

Maldives

Verified Purchase

5 .0

2026-02-10

Seamless mechanical latching and instant physical layer linkup across our server room patching panel.

72 Helpful vote Comments

R***o

Netherlands

Verified Purchase

4 .0

2026-01-25

Good 1530nm 20km SFP+ optic with useful DOM support and clean LC connections. The shipment took a little longer than expected during a busy period, but the product arrived intact and passed our incoming test without issue.

20 Helpful vote Comments

Z***m

Germany

Verified Purchase

5 .0

2026-01-22

We used this LS-CW5310-20C 10G CWDM transceiver to connect two buildings in our business park. The run is just under 14km on existing single-mode fiber, and the link came up at 10Gbps immediately. DOM monitoring is useful for checking RX power without taking the circuit down.

62 Helpful vote Comments

E***e

Republic of Korea

Verified Purchase

4 .0

2025-12-21

Performance has been good for our 20km campus link, and the compatible coding request was handled correctly. I gave four stars because the delivery tracking did not update for a couple of days, not because of the module.

32 Helpful vote Comments

M***l

Nepal

Verified Purchase

5 .0

2025-12-12

Clean 10G link at 20km on the 1530nm CWDM channel — plugged in and stayed up.

66 Helpful vote Comments

G***n

Canada

Verified Purchase

5 .0

2025-11-19

We put LS-CW5310-20C modules through a strict burn-in audit over an 18.5km single-mode fiber link with multiple patch panel interconnections. Transmit launching and receiver sensitivity on the 1530nm ITU grid held completely stable throughout testing, yielding a reliable optical headroom margin across all channels. DDM digital diagnostic parameters (voltage, laser bias current, optical signal status, and operational temperature) reported accurately via SNMP polls on our enterprise switches without logging any CRC or symbol errors. For data center interconnects and metro fiber backhaul, these MSA-compliant 10G SFP+ CWDM modules deliver verified physical-layer stability.

134 Helpful vote Comments

B***t

United Arab Emirates

Verified Purchase

5 .0

2025-10-01

We mapped these 1530nm optics to our passive 8-channel multiplexer array. The duplex LC connections snapped in securely without any mechanical alignment issues or optical attenuation drops, holding steady signal levels throughout continuous operation.

120 Helpful vote Comments

J***n

Morocco

Verified Purchase

5 .0

2025-09-26

Clean optical spectrum match with our passive CWDM MUX pass-through port.

47 Helpful vote Comments

R***z

Mexico

Verified Purchase

4 .0

2025-09-09

The 10G 1530nm CWDM module itself works perfectly on our 16km SMF circuit, and DOM readings look normal. One outer shipping carton arrived with a dent, although the individual protective packaging kept the module safe.

24 Helpful vote Comments

D***d

Japan

Verified Purchase

5 .0

2025-08-14

These duplex LC single-mode transceivers integrated smoothly with our existing CWDM MUX/DEMUX filter units. The optical power output is right on spec, providing a clean link without needing extra inline optical attenuators.

89 Helpful vote Comments

F***k

Australia

Verified Purchase

5 .0

2025-07-28

We installed 12 LS-CW5310-20C modules as part of a campus CWDM overlay carrying 10GbE between core and distribution locations. Fiber distances ranged from 14.5 to 18km on single-mode fiber, with passive CWDM MUX/DEMUX units in the path. All links reached 10G without errors during burn-in, and the RX optical values stayed comfortably above the specified receiver sensitivity. The DOM/DDM data was the main operational benefit for us. We pulled module temperature, supply voltage, laser bias, TX power, and RX power into our monitoring workflow, which gives us early visibility if a fiber connection starts degrading. For indoor cabinets and data room use, the 0–70°C commercial temperature range is appropriate.

153 Helpful vote Comments

D***n

Macao

Verified Purchase

5 .0

2025-07-02

Ran continuous traffic sweeps overnight without a single CRC error or frame drop.

63 Helpful vote Comments

A***r

Bangladesh

Verified Purchase

5 .0

2025-05-27

Exactly what we needed for a 1530nm CWDM single-mode fiber link.

68 Helpful vote Comments

M***l

United Kingdom

Verified Purchase

5 .0

2025-05-09

Ordered these 20km 1530nm SFP+ modules for a CWDM MUX/DEMUX expansion. The channel matched our optical plan, and the Duplex LC/UPC interface made installation straightforward. We especially liked being able to check module temperature, voltage, TX power, and RX power from the switch CLI.

130 Helpful vote Comments

E***s

Sweden

Verified Purchase

4 .0

2025-04-01

Product performance is flawless — the 1530nm 10G SFP+ optical module synced instantly on our distribution switch with perfect DDM telemetry. However, transit took two extra business days due to regional customs clearance delays at the hub port.

28 Helpful vote Comments

E***n

United States

Verified Purchase

5 .0

2025-03-19

Installed these 10G CWDM modules on our enterprise routing stack. The optical telemetry is accurate, and the 20km transmission budget gives us plenty of signal headroom across intermediate patch panels.

95 Helpful vote Comments

E***d

India

Verified Purchase

5 .0

2025-02-11

We tested this commercial-grade 10G CWDM SFP+ module on a 19.2 km route used for high-capacity backhaul. The route includes several patch panels and a CWDM filter stage, so we paid close attention to insertion loss and receive levels. The transceivers maintained stable 10Gbps service throughout a continuous traffic test, and the 1530nm channel aligned with the network wavelength plan. The module’s TX range and RX monitoring gave us enough visibility to validate the link before handover. It is not an industrial-temperature optic, so we installed it in a temperature-managed indoor cabinet rather than an exposed roadside enclosure. For enterprise, campus, and controlled telecom-room deployments, it is a dependable option.

148 Helpful vote Comments

W***n

Argentina

Verified Purchase

5 .0

2025-01-22

Replaced older optics with these commercial-grade 1530nm CWDM modules in our primary server room switch chassis. Tx and Rx optical power reporting via onboard DDM remains completely stable after weeks of heavy daily data transfers.

78 Helpful vote Comments

H***r

Morocco

Verified Purchase

5 .0

2024-12-24

The transaction and delivery went very Fast and precise.

91 Helpful vote Comments

R***e

United States

Verified Purchase

5 .0

2024-12-07

Quality as good as this more costly models, good spec, solid build and tight fit, I have re-purchased these. Recommended. But I hope next time, I could get some discount.

63 Helpful vote Comments

R***s

United Kingdom

Verified Purchase

5 .0

2024-12-04

So good, nothing wrong with the Sfp Cage.

8 Helpful vote Comments

J***n

Poland

Verified Purchase

5 .0

2024-11-22

Spent almost three days looking for the items. Now I've got it! they are in new condition at a good price.

51 Helpful vote Comments

A***a

United States

Verified Purchase

5 .0

2024-11-07

Was a pleasant and easy to find what I needed. Very satisfied and will be a repeated customer to buy Optical Transceiver Modules here.

82 Helpful vote Comments

S***e

United States

Verified Purchase

5 .0

2024-09-28

Compared to another site it was very easy to make my purchase.

63 Helpful vote Comments

J***t

Finland

Verified Purchase

5 .0

2024-09-24

We buy 10/25/40G Transceiver Modules's from Link-pp all the time, and they have never let us down.

49 Helpful vote Comments

M***y

Denmark

Verified Purchase

5 .0

2024-08-07

So far its been a great buying experience. Best price for my item and easy check out.

82 Helpful vote Comments

T***o

Poland

Verified Purchase

5 .0

2024-06-27

Technical advise is always acurate and friendly.

48 Helpful vote Comments

J***e

Indonesia

Verified Purchase

5 .0

2024-04-29

I have had several transactions withLink-pp and my Account Manager Summer is very efficient and conscientious to make sure everything goes just right.

45 Helpful vote Comments

T***i

Netherlands

Verified Purchase

5 .0

2024-04-03

They have a good selection of Optical Transceiver Modules and great customer service. Highly recommend.

79 Helpful vote Comments

R***p

Canada

Verified Purchase

5 .0

2024-03-05

Great products and Great prices with very reasonable shipping charges.

36 Helpful vote Comments

C***N

Malaysia

Verified Purchase

5 .0

2024-02-03

The company gets a good rating from me.

58 Helpful vote Comments

M***s

United States

Verified Purchase

5 .0

2023-10-17

It was shipped in 3 days. Product was packed very well and quality is the best. Thank you !

54 Helpful vote Comments

T***a

Singapore

Verified Purchase

5 .0

2023-10-02

Love the selection and price!

25 Helpful vote Comments

D***s

Spain

Verified Purchase

5 .0

2023-08-09

Just what I ordered, good job!

77 Helpful vote Comments

R***t

Taiwan, Province of China

Verified Purchase

5 .0

2023-06-07

The cheapest 10/25/40G Transceiver Modules I have bought, but the best.

86 Helpful vote Comments

B***d

Lithuania

Verified Purchase

5 .0

2023-05-28

The whole system works very smoothly. Their modules are always solid. There is no problem with data transfer. Yoeng is very supportive and she quite understands my needs...

50 Helpful vote Comments

s***i

Singapore

Verified Purchase

5 .0

2023-04-19

It was actually Faster than I expected, I will certainly use l-p.com again soon.

84 Helpful vote Comments