Our CWDM MUX already carries 1310nm and 1330nm channels. Can we add this 1290nm module to the same fiber pair?

Yes, provided that your CWDM MUX/DEMUX has a dedicated 1290nm channel. The 1290nm module can run alongside 1310nm and 1330nm CWDM channels on the same single-mode fiber pair because each channel uses a different wavelength. Use a matching 1290nm CWDM module at the far end, and check the total link loss, including fiber, connectors, splices, and MUX/DEMUX insertion loss.

Can I install the 1290nm module into any port on the CWDM MUX?

No. It needs to connect to the matching 1290nm channel port. Connecting it to a different wavelength port may cause no link or unstable transmission.

We need a 30km link between two substations. Is this 1290nm CWDM module suitable?

Yes, this LS-CW2910-40I module supports up to 40km transmission over single-mode fiber. The actual supported distance can vary depending on fiber loss, connector condition, and splice quality.

We are upgrading the fiber link between our LTE baseband site and aggregation switch. Can this 1290nm 10G CWDM module be used for LTE backhaul?

Yes. This industrial-grade 10G SFP+ CWDM module is suitable for LTE backhaul where a 10Gbps optical uplink is needed over single-mode fiber. It supports transmission up to 40 km and is a practical choice for outdoor LTE cabinets or remote sites with temperatures from -40°C to +85°C. Please make sure both connected devices support 10G SFP+ optics and that the CWDM wavelength matches the MUX/DEMUX channel.

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Generic CW-SFP10G40-29-I Compatible LINK-PP 10G SFP+ CWDM 1290nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)

Name: Generic CW-SFP10G40-29-I Compatible LINK-PP 10G SFP+ CWDM 1290nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 223803
Price: 176.3 USD
Availability: InStock
Rating: 4.9 (24 reviews)

# 223803

Product: Generic CW-SFP10G40-29-I Compatible LINK-PP 10G SFP+ CWDM 1290nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)
SKU: 223803
P/N: LS-CW2910-40I
Price: $ 205
Stock: 618 in Stock
Sold: 478
Product URL: https://www.l-p.com/products/495365.htm

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Manufacture: LINK-PP

P/N: LS-CW2910-40I

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 CW-SFP10G40-29-I Compatible LINK-PP 10G SFP+ Specifications

The CW-SFP10G40-29-I optical transceiver leverages a precise 1290nm EML laser and PIN photodiode architecture to deliver 10G SFP+ CWDM connectivity across single-mode fiber infrastructure. This module seamlessly facilitates reliable data transmission over distances up to 40km through a duplex LC interface. Additionally, it incorporates comprehensive real-time digital optical monitoring (DOM) to ensure continuous link visibility and proactive network management.

Generic Part Number	CW-SFP10G40-29-I	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1290nm	Max Cable Distance	40km
Connector	Duplex LC	Media	SMF
Transmitter Type	EML	Receiver Type	PIN
TX Power	-1 to +5dBm	RX Power	-23 to -6dBm
Receiver Sensitivity	-16dBm	DOM Support	Yes
Operating Temperature Range	-40 to 85°C	Protocols	SFP+ MSA, CPRI, eCPRI, SFF-8431, SFF-8472, RoHS, ITU-T G.652

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Q: Our CWDM MUX already carries 1310nm and 1330nm channels. Can we add this 1290nm module to the same fiber pair? By N***l on 2026-04-03

A: Yes, provided that your CWDM MUX/DEMUX has a dedicated 1290nm channel. The 1290nm module can run alongside 1310nm and 1330nm CWDM channels on the same single-mode fiber pair because each channel uses a different wavelength. Use a matching 1290nm CWDM module at the far end, and check the total link loss, including fiber, connectors, splices, and MUX/DEMUX insertion loss. By admin on 2026-04-04
Q: Can I install the 1290nm module into any port on the CWDM MUX? By L***n on 2026-01-21

A: No. It needs to connect to the matching 1290nm channel port. Connecting it to a different wavelength port may cause no link or unstable transmission. By admin on 2026-01-22
Q: We need a 30km link between two substations. Is this 1290nm CWDM module suitable? By K***n on 2025-08-14

A: Yes, this LS-CW2910-40I module supports up to 40km transmission over single-mode fiber. The actual supported distance can vary depending on fiber loss, connector condition, and splice quality. By admin on 2025-08-15
Q: We are upgrading the fiber link between our LTE baseband site and aggregation switch. Can this 1290nm 10G CWDM module be used for LTE backhaul? By M***h on 2025-05-09

A: Yes. This industrial-grade 10G SFP+ CWDM module is suitable for LTE backhaul where a 10Gbps optical uplink is needed over single-mode fiber. It supports transmission up to 40 km and is a practical choice for outdoor LTE cabinets or remote sites with temperatures from -40°C to +85°C. Please make sure both connected devices support 10G SFP+ optics and that the CWDM wavelength matches the MUX/DEMUX channel. By admin on 2025-05-10

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T***s

Israel

Verified Purchase

5 .0

2026-04-29

This transceiver module worked well for our base-station backhaul test setup. We needed 1290nm CWDM to fit the wavelength plan, plus wide-temperature operation for an equipment shelter with limited climate control. TX/RX power values in DOM were consistent across the modules we installed.

105 Helpful vote Comments

P***e

Poland

Verified Purchase

5 .0

2026-03-04

Ran this industrial-grade 1290nm CWDM SFP+ module on a 35km SMF route with stable 10G throughput.

50 Helpful vote Comments

D***n

Nepal

Verified Purchase

4 .0

2026-02-10

Good industrial CWDM 1290nm SFP+ module for the price. We had no issues with the LC duplex link or 10Gbps performance, but delivery took a couple of days longer than our project schedule expected. Product performance has been excellent so far.

28 Helpful vote Comments

R***e

Bulgaria

Verified Purchase

5 .0

2026-01-18

For our data room expansion, we needed a CWDM SFP+ module that could handle longer metro-style fiber runs. This 1290nm unit performed as expected on a 36km route. The SFF-8472 diagnostics were visible in our monitoring tools, which saved time during turn-up.

101 Helpful vote Comments

E***y

Bangladesh

Verified Purchase

4 .0

2025-12-12

The modules were exactly as ordered and worked well over our single-mode fiber link. Customs clearance added a short delay, but the seller’s packing protected the shipment well.

31 Helpful vote Comments

B***n

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2025-11-05

We deployed twelve LS-CW2910-40I modules across a campus-to-industrial-site fiber refresh. The longest route was just under 38km on existing ITU-T G.652 single-mode fiber, with several patch-panel transitions along the way. Link establishment was immediate at 10Gbps, and post-install monitoring showed stable optical levels well within the module’s stated TX and RX range. The DOM data helped our NOC compare receive power across sites and quickly identify one dirty connector that was not related to the optic. For a 1290nm CWDM SFP+ 40km application, these have been dependable in production.

92 Helpful vote Comments

V***a

Denmark

Verified Purchase

5 .0

2025-10-15

Used in a multi-site office rollout with single-mode fiber between warehouses. The module negotiated cleanly at 10G and showed reasonable receive levels on both ends. No errors after several weeks of traffic, backups, and video surveillance uplink.

83 Helpful vote Comments

W***s

Belarus

Verified Purchase

5 .0

2025-08-21

We tested this 10G CWDM 1290nm optic alongside other wavelength channels in the same fiber plant. It fit our channel plan and maintained a stable link with no packet loss during the burn-in period. DOM temperature and optical-power readings were easy to verify.

96 Helpful vote Comments

P***e

Ireland

Verified Purchase

5 .0

2025-07-11

Bought several of these industrial 10G SFP+ CWDM modules for a remote aggregation project. The duplex LC connection was straightforward, and every unit linked at 10Gbps on our existing single-mode fiber. Great option when you need a 40km CWDM optical transceiver without moving to a more expensive platform.

123 Helpful vote Comments

W***r

Maldives

Verified Purchase

5 .0

2025-07-02

For a private LTE/5G-style backhaul lab, we needed a 10Gbps optical module compatible with CPRI and eCPRI-oriented deployment requirements, not simply a generic data-center optic. This industrial 1290nm CWDM SFP+ met the required SFP+ MSA, SFF-8431, and SFF-8472 diagnostic expectations and ran reliably on the 32km SMF test route. We monitored both ends during heavy traffic and simulated equipment-room temperature variation, with stable optical power and no observed CRC increase. The 40km budget provides useful margin for future route changes.

128 Helpful vote Comments

S***m

Brunei Darussalam

Verified Purchase

5 .0

2025-06-04

Deployed this CWDM module across a 32km OS2 duplex LC fiber span between two municipal buildings. DDM readings show a clean optical power budget margin with stable Tx levels right at 1290nm. Smooth 10G link throughout the entire load test!

75 Helpful vote Comments

F***m

Iran, Islamic Republic of

Verified Purchase

4 .0

2025-05-27

The LS-CW2910-40I CWDM modules are performing well in our industrial cabinet deployment. I only gave four stars because the package tracking did not update for a few days.

26 Helpful vote Comments

Q***t

Hungary

Verified Purchase

5 .0

2025-03-08

We keep these 10G 1290nm CWDM 40km SFP+ transceivers as spares for customer fiber rings. They are compact, the label information is easy to read, and DOM makes acceptance testing faster. Good fit for technicians working with CWDM channels in the field.

98 Helpful vote Comments

M***y

Philippines

Verified Purchase

5 .0

2024-11-04

my product arrived quickly and in good order and priced at much less than other retailers.

38 Helpful vote Comments

H***r

Indonesia

Verified Purchase

5 .0

2024-10-22

They are quick to confirm the order, contacted me a second time to let me know the ETA of my package. The package arrived on time and in excellent shape.

45 Helpful vote Comments

J***e

Hong Kong

Verified Purchase

5 .0

2024-03-07

Very nice variety of products. Prices are great

95 Helpful vote Comments

J***a

Canada

Verified Purchase

5 .0

2024-01-25

Great service. I got my products Fast with no complaints! Thanks!

39 Helpful vote Comments

Y***i

Cambodia

Verified Purchase

5 .0

2023-12-05

I have received the order, and your shipping time is out of expected. And the 10/25/40G Transceiver Modules are functioning just as expected. we have always been satisfied with our equipment from you.

56 Helpful vote Comments

R***t

Turkey

Verified Purchase

5 .0

2023-09-13

Best prices online for Optical Transceiver Module and More .. best vendor for online shopping.

72 Helpful vote Comments

T***G

Spain

Verified Purchase

5 .0