We are adding a long-haul 1G service to an existing CWDM backbone, and the only unused channel on our passive MUX/DEMUX is 1610nm. Can the LS-CW611G-80C be deployed on that channel, and what should we verify before installation?

Yes. This 1610nm CWDM SFP is designed to operate with a matching 1610nm port on a passive CWDM MUX/DEMUX. Before deployment, confirm that the remote end also uses a 1610nm 1G CWDM optic and that the total link loss — including fiber, connectors, splices, and MUX/DEMUX insertion loss — fits within the optical budget.

I need to add a 1610nm channel to an existing CWDM link. Can this SFP be coded for my switch brand?

Yes. The LS-CW611G-80C follows the standard SFP MSA form factor, and compatible EEPROM coding may be available for the switch brand. Please send the exact switch model so the module can be matched to your equipment.

Our fiber plant is OS2 single-mode fiber with LC patch panels. Is this module compatible with that setup?

Yes. This LS-CW611G-80C module is intended for single-mode fiber and uses a duplex LC optical interface. OS2 single-mode fiber and LC-to-LC duplex patch cords are normally appropriate, provided the route and connector quality meet the required optical-loss budget.

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Cisco CWDM-SFP-1610 Compatible LINK-PP 1G SFP CWDM 1610nm 80km Duplex LC DDM SMF Optical Transceiver Module

Name: Cisco CWDM-SFP-1610 Compatible LINK-PP 1G SFP CWDM 1610nm 80km Duplex LC DDM SMF Optical Transceiver Module
Brand: LINK-PP
SKU: 224129
Price: 44.72 USD
Availability: InStock
Rating: 4.9 (14 reviews)

# 224129

Product: Cisco CWDM-SFP-1610 Compatible LINK-PP 1G SFP CWDM 1610nm 80km Duplex LC DDM SMF Optical Transceiver Module
SKU: 224129
P/N: LS-CW611G-80C
Price: $ 52
Stock: 132 in Stock
Sold: 634
Product URL: https://www.l-p.com/products/494040.htm

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Manufacture: LINK-PP

P/N: LS-CW611G-80C

Compatible:: Cisco; LINK-PP; Allied Telesis; Arista; Brocade; Ciena; Dell; Extreme; Juniper; Netgear

Wavelength:: 1270nm; 1290nm; 1310nm; 1330nm; 1350nm; 1370nm; 1390nm; 1410nm; 1430nm; 1450nm; 1470nm; 1490nm; 1510nm; 1530nm; 1550nm; 1570nm; 1590nm; 1610nm

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Cisco CWDM-SFP-1610 Compatible LINK-PP 1G SFP Specifications

CWDM-SFP-1610 stands out as an advanced 1G SFP CWDM optical transceiver module engineered to expand network boundaries. Operating at a precise 1610nm wavelength, it integrates a dependable CWDM DFB laser alongside a sensitive PIN photodiode. Furthermore, the unit supports seamless single-mode fiber (SMF) transmission up to 80km, complemented by real-time digital diagnostic monitoring for complete link oversight.

Cisco Part Number	CWDM-SFP-1610	Vendor Name	LINK-PP
Form Factor	SFP	Max Data Rate	1.25Gbps
Wavelength	1610nm	Max Cable Distance	80km
Connector	Duplex LC	Media	SMF
Transmitter Type	DFB	Receiver Type	PIN
TX Power	-1 to +4dBm	RX Power	-26 to -1dBm
Receiver Sensitivity	-26dBm	Receiver Overload	-1dBm
EMC (Electro Magnetic Comnatihilitv)	Supported	DDM	Supported
Operating Temperature Range	0 to 70°C	Protocols	SFP MSA、SFF-8472

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Q: We are adding a long-haul 1G service to an existing CWDM backbone, and the only unused channel on our passive MUX/DEMUX is 1610nm. Can the LS-CW611G-80C be deployed on that channel, and what should we verify before installation? By Q***r on 2026-03-03

A: Yes. This 1610nm CWDM SFP is designed to operate with a matching 1610nm port on a passive CWDM MUX/DEMUX. Before deployment, confirm that the remote end also uses a 1610nm 1G CWDM optic and that the total link loss — including fiber, connectors, splices, and MUX/DEMUX insertion loss — fits within the optical budget. By admin on 2026-03-04
Q: I need to add a 1610nm channel to an existing CWDM link. Can this SFP be coded for my switch brand? By G***e on 2025-08-17

A: Yes. The LS-CW611G-80C follows the standard SFP MSA form factor, and compatible EEPROM coding may be available for the switch brand. Please send the exact switch model so the module can be matched to your equipment. By admin on 2025-08-18
Q: Our fiber plant is OS2 single-mode fiber with LC patch panels. Is this module compatible with that setup? By N***m on 2025-04-11

A: Yes. This LS-CW611G-80C module is intended for single-mode fiber and uses a duplex LC optical interface. OS2 single-mode fiber and LC-to-LC duplex patch cords are normally appropriate, provided the route and connector quality meet the required optical-loss budget. By admin on 2025-04-12

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F***r

Finland

Verified Purchase

5 .0

2026-05-07

Used these 1610nm modules for point-to-point wireless backhaul aggregation between two distribution towers (approx. 66km). Receiver sensitivity and Bit Error Rate remain rock solid during peak traffic hours.

93 Helpful vote Comments

J***n

South Africa

Verified Purchase

5 .0

2026-04-22

Optical diagnostics were available immediately and made commissioning much easier.

61 Helpful vote Comments

A***h

Turkey

Verified Purchase

5 .0

2026-04-14

We used the LS-CW611G-80C 1610nm CWDM SFP to extend a monitoring network between two facilities. The actual fiber route is just under 70km on single-mode fiber, and the link has remained stable with good RX power shown through DOM.

101 Helpful vote Comments

M***n

Belarus

Verified Purchase

4 .0

2026-01-17

Tracking updates paused for a few days while the package was in transit, which made scheduling a little harder. Once delivered, the modules were well protected and all passed our receiving test.

20 Helpful vote Comments

R***r

Hungary

Verified Purchase

5 .0

2026-01-15

We deployed the LS-CW611G-80C as the 1610nm channel in a four-site CWDM aggregation design. The longest measured route was approximately 76km of OS2 single-mode fiber, including several patch panels and splices. Before turn-up, we calculated the path loss against the module’s optical parameters: TX power of -1 to +4dBm and receiver sensitivity down to -26dBm provided a workable margin for the link. After commissioning, the DDM/DOM data let us record optical power and temperature baselines for each endpoint. The reported RX levels stayed consistent during traffic tests, and we saw no CRC errors or unexpected reconnects at 1Gbps.

111 Helpful vote Comments

P***n

Malaysia

Verified Purchase

5 .0

2025-11-11

Clean 1Gbps link over a long fiber route with plenty of stability.

68 Helpful vote Comments

T***n

Ireland

Verified Purchase

5 .0

2025-10-05

Purchased several LS-CW611G-80C 1G SFP modules for a campus fiber network using a passive CWDM MUX. All units matched the 1610nm channel correctly and linked at 1Gbps without any manual tuning.

98 Helpful vote Comments

N***m

Romania

Verified Purchase

5 .0

2025-09-21

Every module arrived with proper ESD anti-static packaging and tight-fitting optical dust caps on the duplex LC connector. Perfect condition for staging in our data center.

87 Helpful vote Comments

J***z

Israel

Verified Purchase

5 .0

2025-06-25

Used as part of a multi-wavelength CWDM deployment for a small regional network. The 1610nm CWDM DFB transmitter paired correctly with our passive MUX/DEMUX channel, while the PIN receiver gave us enough margin for the installed fiber span.

126 Helpful vote Comments

E***y

Denmark

Verified Purchase

5 .0

2025-04-28

Our team used a batch of these 1.25G CWDM SFP modules during a data-center-to-remote-site migration. We tested module recognition, link stability, DOM visibility, and interoperability across several categories of SFP host equipment before releasing them to the field. Every unit was recognized as a standard SFP interface and exposed the expected SFF-8472 diagnostic fields. The 1610nm CWDM DFB laser worked correctly through the designated channel on our passive MUX/DEMUX equipment. On the receive side, we monitored the PIN receiver values while introducing normal plant attenuation, and the links remained stable well within the expected operating range. These are commercial 0–70°C optics, so we used them in conditioned rooms and indoor cabinets rather than exposed outdoor enclosures. For cost-conscious bulk deployment of 80km single-mode fiber links, they performed as specified.

153 Helpful vote Comments

B***r

Philippines

Verified Purchase

5 .0

2025-03-24

Ran perfectly on our 1610nm CWDM channel from the first power-up.

47 Helpful vote Comments

H***t

Cambodia

Verified Purchase

5 .0

2025-03-12

We ordered this 1G 80km CWDM SFP for a long backhaul connection where fiber loss was the main concern. It has held the link steadily, and the specified -26dBm receiver sensitivity gave us confidence before deployment.

87 Helpful vote Comments

L***r

Ukraine

Verified Purchase

5 .0

2025-02-05

The physical latching mechanism snaps firmly into the SFP cage and holds standard duplex LC single-mode patch cables securely with no connector play or signal attenuation.

110 Helpful vote Comments

O***r

Lithuania

Verified Purchase

5 .0

2025-01-29

The 1610nm wavelength was exactly what we needed to fill the last open channel on our CWDM fiber system. Installation took a few minutes, and the LC duplex interface worked with our existing single-mode patch cords.

94 Helpful vote Comments