We are setting up remote LTE cell tower nodes in sub-zero winter conditions — will this module cold-start without issues?

Yes, this module is rated for industrial temperature. For outdoor LTE remote radio head (RRH) deployments, our industrial-grade modules are tested to cold-start and operate reliably across the full range of -40°C to +85°C (-40°F to +185°F).

We're running a 35km link between data centers — do we need single-mode or multi-mode fiber patch cords for this module?

You must use single-mode fiber with duplex LC connectors. Multi-mode fiber is strictly unsuitable for DWDM long-haul links due to extreme modal dispersion at C-band wavelengths.

Can we plug this DWDM module directly into channel 26 of a standard 100GHz ITU grid passive MUX/DEMUX?

Yes, absolutely. This LS-DW2610-40I module is precisely hard-coded to 1556.55nm (Channel 26) in compliance with the standard 100GHz C-Band ITU grid. You can plug it directly into Port/Channel 26 of any standardized passive MUX/DEMUX unit without additional frequency offset adjustment.

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Generic DW-SFP10G40-26-I Compatible LINK-PP C26 10G SFP+ DWDM 1556.55nm 40km Duplex LC DDM SMF Optical Transceiver Module (Industrial)

Name: Generic DW-SFP10G40-26-I Compatible LINK-PP C26 10G SFP+ DWDM 1556.55nm 40km Duplex LC DDM SMF Optical Transceiver Module (Industrial)
Brand: LINK-PP
SKU: 223422
Price: 257.14 USD
Availability: InStock
Rating: 5 (35 reviews)

# 223422

Product: Generic DW-SFP10G40-26-I Compatible LINK-PP C26 10G SFP+ DWDM 1556.55nm 40km Duplex LC DDM SMF Optical Transceiver Module (Industrial)
SKU: 223422
P/N: LS-DW2610-40I
Price: $ 299
Stock: 312 in Stock
Sold: 454
Product URL: https://www.l-p.com/products/495338.htm

For Order Over $1000 Get $15.00 Off , Code: Linkpp15

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New Users: $10 Coupon for Orders , Code: linkpp2610

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Manufacture: LINK-PP

P/N: LS-DW2610-40I

Compatible:: Cisco; LINK-PP; Arista; Brocade; Ciena; Dell; Extreme; FS; Generic; H3C; HW; Juniper; MRV; Netgear

Wavelength:: C17; C18; C19; C20; C21; C22; C23; C24; C25; C26; C27; C28; C29; C30; C31; C32; C33; C34; C35; C36; C37; C38; C39; C40

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Generic DW-SFP10G40-26-I Compatible LINK-PP C26 10G SFP+ Specifications

DW-SFP10G40-26-I defines a 10G SFP+ DWDM optical transceiver at 1556.55nm within the C-band, incorporating a cooled EML laser and PIN photodiode, duplex LC connectivity, up to 40 km reach over single-mode fiber, real-time DDM support, and an operating temperature range of −40 to +85 °C.

Generic Part Number	DW-SFP10G40-26-I	Vendor Name	LINK-PP
Form Factor	SFP+	Max Data Rate	10.7Gbps
Wavelength	1556.55nm	Max Cable Distance	40km
Connector	Duplex LC	Media	SMF
Transmitter Type	EML	Receiver Type	PIN
TX Power	-1 to +2dBm	RX Power	-16 to -1dBm
Receiver Sensitivity	-15.5dBm	DDM Support	Yes
Operating Temperature Range	-40 to 85°C	Protocols	SFP+ MSA Compliant, CPRI, eCPRI

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Q: We are setting up remote LTE cell tower nodes in sub-zero winter conditions — will this module cold-start without issues? By V***s on 2026-01-11

A: Yes, this module is rated for industrial temperature. For outdoor LTE remote radio head (RRH) deployments, our industrial-grade modules are tested to cold-start and operate reliably across the full range of -40°C to +85°C (-40°F to +185°F). By admin on 2026-01-12
Q: We're running a 35km link between data centers — do we need single-mode or multi-mode fiber patch cords for this module? By B***n on 2025-08-25

A: You must use single-mode fiber with duplex LC connectors. Multi-mode fiber is strictly unsuitable for DWDM long-haul links due to extreme modal dispersion at C-band wavelengths. By admin on 2025-08-26
Q: Can we plug this DWDM module directly into channel 26 of a standard 100GHz ITU grid passive MUX/DEMUX? By D***y on 2025-06-24

A: Yes, absolutely. This LS-DW2610-40I module is precisely hard-coded to 1556.55nm (Channel 26) in compliance with the standard 100GHz C-Band ITU grid. You can plug it directly into Port/Channel 26 of any standardized passive MUX/DEMUX unit without additional frequency offset adjustment. By admin on 2026-06-25

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R***y

Morocco

Verified Purchase

5 .0

2026-05-19

We run a 10G fiber network for a university campus, connecting 12 buildings over single-mode fiber. The LS-DW2610-40I modules were installed in core and distribution switches. The 40km reach gave us plenty of margin for our longest 32km spans, and the DOM feature lets our NOC monitor optical health in real time. We’ve had zero downtime attributed to these transceivers over 3 months. The industrial temperature rating was key for our outdoor IDF closets, which see wide seasonal swings. The 100GHz C26 wavelength also fits our DWDM plan without crosstalk, and the duplex LC connector is a perfect match for our patch panels.

109 Helpful vote Comments

R***s

Poland

Verified Purchase

5 .0

2026-05-07

Smooth LC duplex latching and flawless optical power output.

64 Helpful vote Comments

D***l

Belarus

Verified Purchase

5 .0

2026-03-27

Deployed 50 of these DWDM modules in a data center interconnect. Power consumption is low, and the EML/PIN combo gives us a solid link budget. DOM makes troubleshooting super easy when we tweak patch panels.

50 Helpful vote Comments

C***t

Belgium

Verified Purchase

5 .0

2026-02-19

Clean optical budget on our 35km span, zero frame drops noticed.

44 Helpful vote Comments

T***s

Bulgaria

Verified Purchase

5 .0

2025-12-26

Using these for a cell site backhaul project. The -40°C to +85°C range is real – they’ve been in a heated outdoor enclosure all winter with no alarms. The 100GHz C26 channel slots right into our existing DWDM mux.

92 Helpful vote Comments

E***s

New Zealand

Verified Purchase

5 .0

2025-12-08

C26 1556.55nm fits our 100GHz grid perfectly! No crosstalk and it lines up with our mux/demux without tweaks.

85 Helpful vote Comments

S***s

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2025-10-19

We manage a regional fiber network with 40+ DWDM channels. The LS-DW2610-40I (C26, 1556.55nm) was deployed in 8 locations for a 10G ring upgrade. Over 2 months, we’ve seen stable Rx power between -15 and -12dBm on 35km SMF spans. The DOM data (temperature, Vcc, Tx/Rx bias) integrates into our NMS via SNMP, and the industrial temp range has handled our unsheltered roadside cabinets without a single thermal alarm. The 100GHz grid spacing aligns perfectly with our existing mux/demux, and we’ve had zero interoperability issues with our 10G switches.

126 Helpful vote Comments

L***z

Lithuania

Verified Purchase

5 .0

2025-10-06

We subjected this 10G CWDM optical module to continuous thermal stress testing inside an unheated, remote substation enclosure to simulate harsh winter conditions. The wide-temperature engineering proved its worth — the transmitter exhibited zero frequency drift or signal degradation even during severe ambient temperature fluctuations. Thermal dissipation stayed remarkably low inside high-density switch cages, making it an ideal, rock-solid choice for unconditioned outdoor cabinet deployments and industrial automation backhauls.

135 Helpful vote Comments

K***s

Finland

Verified Purchase

5 .0

2025-10-05

Low power consumption and stable signal across our metro ring.

73 Helpful vote Comments

B***y

Austria

Verified Purchase

5 .0

2025-09-21

Checked with our OSA — 1556.55nm accuracy is rock solid!

52 Helpful vote Comments

S***r

Macao

Verified Purchase

4 .0

2025-09-14

The DWDM module itself works flawlessly across our single-mode fiber span with zero bit errors and crystal-clear telemetry. However, regional courier routing took an unexpected detour, delaying delivery past our scheduled maintenance window. Excellent hardware performance overall, just give yourself a few extra days for shipping.

24 Helpful vote Comments

G***r

Hungary

Verified Purchase

5 .0

2025-08-27

Adding extra 10G pipes over leased dark fiber gets expensive fast. Dropping this C26 1556.55nm 10G SFP+ transceiver into our existing DWDM grid solved our capacity bottleneck overnight at a fraction of lease costs.

101 Helpful vote Comments

R***d

Malaysia

Verified Purchase

5 .0

2025-07-19

Hot-plug & go, no config needed on our 10G switches.

78 Helpful vote Comments

J***n

Brunei Darussalam

Verified Purchase

5 .0

2025-07-06

Our ISP needed a cost-effective 10G DWDM option for metro rings. These LS-DW2610-40I modules hit the C26 wavelength, 40km reach, and DOM requirements without breaking the budget. Plug-and-play with our core gear.

116 Helpful vote Comments

S***z

Romania

Verified Purchase

5 .0

2025-06-25

Deployed these LS-DW2610-40I 10G DWDM modules across a 30km single-mode fiber link connecting our remote aggregation nodes. Both Rx and Tx power levels stayed well within target thresholds. Definitely saved our quarterly budget without sacrificing optical reliability.

99 Helpful vote Comments

M***e

Turkey

Verified Purchase

5 .0

2025-04-28

We added channel 26 (1556.55nm) DWDM modules to our existing passive MUX/DEMUX system. The wavelength stability is precise, and insertion loss remained minimal across the entire passive multiplexer stack. Excellent option for scaling existing fiber assets.

127 Helpful vote Comments

N***i

Taiwan, Province of China

Verified Purchase

5 .0

2025-04-28

First time using l-p.com. The website is easy to navigate and placing the order is easy and straightforward. The prices of the Halo TG111-HPE3NV6LF modules that I ordered were less than many other online stores. Found what I wanted very quickly, good price and easy check out.

16 Helpful vote Comments

H***i

New Zealand

Verified Purchase

5 .0

2025-04-09

Great price and quick shipping. Great seller.

65 Helpful vote Comments

B***d

United States

Verified Purchase

5 .0

2025-02-26

Generally quick and easy to find what I'm looking for- and fair prices.

25 Helpful vote Comments

V***d

Thailand

Verified Purchase

5 .0

2024-12-24

Everyone we interacted with was professional and very kind. We are happy with our quality RJ 45 modules & would recommend l-p.com to anyone!

44 Helpful vote Comments

T***i

United States

Verified Purchase

5 .0

2024-10-04

Link-ppstore is my first choice.

29 Helpful vote Comments

A***v

United States

Verified Purchase

5 .0

2024-08-28

very good product and Fast shipping. Will recommend to friends.

33 Helpful vote Comments

T***a

Russian Federation

Verified Purchase

5 .0

2024-06-10

Product was as advertised ... communication regarding shipment and delivery was excellent.

12 Helpful vote Comments

A***v

Netherlands

Verified Purchase

5 .0

2024-05-04

The staff team was able to aid us in getting up and running. Many thanks to the entire team at l-p.com!

48 Helpful vote Comments

c***t

Canada

Verified Purchase

5 .0

2024-04-19

The 10/25/40G Transceiver Modules and service has been great, we have enjoyed good performance. Response at times is a little slow.

65 Helpful vote Comments

a***A

United States

Verified Purchase

5 .0

2024-01-24

Smooth transaction, had what I needed, good prices. Doesn't get much better!

93 Helpful vote Comments

S***d

Libyan Arab Jamahiriya

Verified Purchase

5 .0

2023-12-21

Normal simple 10/25/40G Transceiver Modules. Good snapping by Teminal 10/25/40G Transceiver Modules

29 Helpful vote Comments

R***s

Philippines

Verified Purchase

5 .0

2023-12-09

Went to this site for a computer hard drive. Quickly found exactly what I wanted and for a great price. Was done in minutes.

31 Helpful vote Comments

J***l

Romania

Verified Purchase

5 .0

2023-12-05

Nice webpage layout & selection. Good customer service when I called about items. No pressure.

6 Helpful vote Comments

M***s

Macao

Verified Purchase

5 .0

2023-11-28

The 10/25/40G Transceiver Modules are great and their service is even better. Most impressive was their communication throughout the entire process. They really answered and dealt with all my questions. Hands down, a superior online shopping experience compared to the local shop.

28 Helpful vote Comments

H***e

United States

Verified Purchase

5 .0

2023-11-19

The website was easy to navigate, and the checkout process was easy.

29 Helpful vote Comments

J***n

United States

Verified Purchase

5 .0