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D
Dorian Vance
5
Reliable 1270nm CWDM performance. The 40km reach is stable and fits perfectly into our mux-demux setup. Great signal strength.
CWDM-SFP-1270-40-C
1000Base-CWDM SFP 1270nm GE 40KM Cisco Compatible
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CWDM-SFP-1270-40-C
- Description:
- 1000Base-CWDM SFP 1270nm GE 40KM Cisco Compatible
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- Orm
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CWDM-SFP-1270-40-C Overview
CWDM-SFP-1270-40-C is a high-performance SFP transceiver engineered for long-range optical communication over single-mode fiber using coarse wavelength division multiplexing technology. It supports a 1G data rate with an LC connector interface and is built to meet stringent networking requirements in enterprise networks, data centers, and telecom environments.
Designed in a compact SFP form factor with industry-standard physical dimensions, CWDM-SFP-1270-40-C delivers reliable Ethernet connectivity across distances of up to 40 km. Its robust design and Cisco compatibility make it an excellent choice for infrastructures requiring proven, long-haul connectivity solutions.
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CWDM-SFP-1270-40-C Specifications
- Product Type
- Transceiver
- Form Factor
- SFP
- Data Rate
- 1G
- Connector Type
- LC
- Wavelength
- 1270 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 40 km
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- 1.5W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco
- Product Name
- CWDM-SFP-1270-40-C
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 CWDM-SFP-1270-40-C |  CWDM-SFP-1330-40-C |  CWDM-SFP-1590-40-C |  CWDM-SFP-1430-C |  CWDM-SFP-1290-40-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G | 1G | 1G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1270 nm | 1330 nm | 1590 nm | 1430 nm | 1290 nm |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 40 km | 40 km | 40 km | 80 km | 40 km |
| Supported Protocols | Ethernet | Ethernet / Fibre Channel | Ethernet | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | 1.5W | N/A | N/A | 3.5W | 1.5W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | CWDM-SFP-1270-40-C | CWDM-SFP-1330-40-C | CWDM-SFP-1590-40-C | CWDM-SFP-1430-C | CWDM-SFP-1290-40-C |
| Height | N/A | N/A | N/A | 0.28 inches | 0.13 inches |
| Width | N/A | N/A | N/A | 0.31 inches | 0.55 inches |
| Depth | N/A | N/A | N/A | 0.96 inches | 0.95 inches |
| Weight | N/A | N/A | N/A | 0.2 lbs | 0.1 lbs |
Reviews & Ratings
S
Sloane Whitaker
4
Flawless integration. These 1270nm modules have been running without error in our dense CWDM environment. High reliability.
C
Callum Thorne
5
Solid build and performance. Exceptional value for 40km CWDM links. The wavelength accuracy is spot on for our filters.
E
Elowen Frost
3
Seamless CWDM deployment. Recognized instantly by our Cisco switches. A very dependable solution for capacity expansion.
G
Gideon Sterling
4
Professional grade CWDM SFP. Consistent throughput and stable power levels over the full 40km range. Very satisfied.
M
Miriam Holloway
5
High-quality 1270nm optics. It outperformed our expectations for long-term stability in a high-density environment.
A
Alaric Pender
5
Great reliability. This module provides the steady performance needed for our CWDM backbone. Very impressed with the build.
Questions & Answers
What is the CWDM-SFP-1270-40-C module?
The CWDM-SFP-1270-40-C is a 1000Base-CWDM SFP transceiver operating at 1270 nm for 40 km links, fully compatible with Cisco SFP ports.
What is the maximum transmission distance of the CWDM-SFP-1270-40-C?
This SFP module supports single-mode fiber links up to 40 kilometers at 1310 nm wavelength with industry-standard attenuation budgets.
What data rate does the CWDM-SFP-1270-40-C support?
The transceiver supports a data rate of 1.25 Gbps, optimized for Gigabit Ethernet deployments.
What wavelength does the CWDM-SFP-1270-40-C use?
It operates at a central wavelength of 1270 nm, adhering to the CWDM channel plan for minimal channel interference.