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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Ciena CWDM-SFP10G-1290-I Compatible LINK-PP 10G SFP+ CWDM 1290nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)

Name: Ciena CWDM-SFP10G-1290-I Compatible LINK-PP 10G SFP+ CWDM 1290nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 223799
Price: 176.3 USD
Availability: InStock
Rating: 4.9 (23 reviews)

# 223799

Product: Ciena CWDM-SFP10G-1290-I Compatible LINK-PP 10G SFP+ CWDM 1290nm 40km Duplex LC DOM SMF Optical Transceiver Module (Industrial)
SKU: 223799
P/N: LS-CW2910-40I
Price: $ 205
Stock: 595 in Stock
Sold: 609
Product URL: https://www.l-p.com/products/482880.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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Ciena CWDM-SFP10G-1290-I Compatible LINK-PP 10G SFP+ Specifications

The CWDM-SFP10G-1290-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.

Ciena Part Number	CWDM-SFP10G-1290-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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V***a

Morocco

Verified Purchase

5 .0

2026-03-14

Our team evaluated this industrial 10G SFP+ CWDM transceiver for an outdoor utility communications network. The important requirements were the 1290nm wavelength, Duplex LC interface, 40km reach, digital optical monitoring, and operation from -40°C to 85°C. We ran continuous traffic, link-flap tests, and environmental cabinet checks, and the modules remained stable with no unexpected alarms. The diagnostic values were readable through our standard management workflow, including temperature, voltage, laser bias, transmit power, and receive power. It is a strong fit for industrial switching, remote cabinets, and long-distance 10GbE uplinks.

124 Helpful vote Comments

O***n

Ukraine

Verified Purchase

5 .0

2026-02-24

Excellent 40km CWDM SFP+ transceiver for long-haul campus links — works as advertised.

56 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

S***s

Turkey

Verified Purchase

5 .0

2025-12-30

We used this LS-CW2910-40I 1290nm CWDM SFP+ in a small business park network with roughly 31km of single-mode fiber. The 10G link has stayed stable through normal daytime heat and overnight temperature swings. DOM monitoring is useful for checking optical power before a minor loss becomes a service call.

117 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

C***n

Macao

Verified Purchase

5 .0

2025-09-26

We installed a matched pair on a fiber route connecting two server rooms through a metropolitan dark-fiber segment. Total optical distance was 37.4km, and the path included multiple LC patch points, so DOM visibility was a must. The modules held a clean 10G connection during backup windows and high-throughput replication tests, while receive levels stayed comfortably above the sensitivity threshold. We also moved one optic through several compatible SFP+ ports during commissioning; it was recognized normally each time after standard configuration. Great field result for a 40km single-mode CWDM deployment.

137 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

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

T***z

Lithuania

Verified Purchase

5 .0

2025-04-16

Excellent wavelength accuracy on 18-channel CWDM Mux/Demux. Channel pass-through on our passive 1290nm optical multiplexer was spot on. Insertion loss stayed well within nominal thresholds, and we verified full 10Gbps line-rate throughput without frame loss.

83 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

i***s

Macao

Verified Purchase

5 .0