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CWDM-SFP-1490-40-C
1000Base-CWDM SFP 1490nm GE 40KM Cisco Compatible
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CWDM-SFP-1490-40-C is a compact SFP transceiver designed for CWDM applications that deliver 1G data transmission over long-range, single-mode fiber networks. It features an LC connector, operates at a 1490 nm wavelength, and meets the requirements for Ethernet and Fibre Channel protocols in enterprise and telecom environments.
This module’s standard SFP form factor ensures easy plug-and-play integration into data center, campus, and carrier-grade systems while maintaining industry-compliant physical dimensions. Engineered for reliable performance over distances up to 40 km, the device is ideally suited for extended reach network links where robust connectivity is critical.
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| CWDM-SFP-1490-40-C |  CWDM-SFP-1350-C |  CWDM-SFP-1550-120-C |  CWDM-SFP-1570-C |  CWDM-SFP-1330-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 | 1490 nm | 1350 nm | 1550 nm | 1570 nm | 1330nm |
| Transmission Distance | Long-Range | Long-Range | Extended-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 40 km | 40 km | 120 km | 40 km | 40km |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Network Interface | Fiber | Ethernet | Fiber | Fiber | Fiber |
| Power Consumption | N/A | N/A | 2.8 W | 1.5 W | N/A |
| 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 | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | CWDM-SFP-1490-40-C | CWDM-SFP-1350-C | CWDM-SFP-1550-120-C | CWDM-SFP-1570-C | CWDM-SFP-1330-C |
| Height | N/A | N/A | 0.28 inches | N/A | N/A |
| Width | N/A | N/A | 0.94 inches | N/A | N/A |
| Depth | N/A | N/A | 0.68 inches | N/A | N/A |
| Weight | N/A | N/A | 0.1 lbs | N/A | N/A |
Flawless 1490nm performance. The 40km reach is perfectly stable in our CWDM setup. No errors reported.
Excellent value for 1490nm CWDM. Integrated seamlessly into our core network. Very happy with the reliability.
Consistent 1490nm signaling. Precise wavelength ensuring no interference with other channels. Professional grade hardware.
Reliable 40km optics. These SFPs have been performing flawlessly in our remote sites. Very dependable.
Professional quality. The 1490nm signal is strong and the link budget is generous. A solid choice.
Strong performance. Recognized immediately by our Cisco hardware. Highly recommended for CWDM transport.
Great reliability. These 1490nm modules deliver steady gigabit throughput over long distances. Very satisfied.
The CWDM-SFP-1490-40-C is a Cisco-compatible 1000Base-CWDM SFP transceiver operating at 1490 nm for single-mode fiber links up to 40 km.
It supports single-mode (SMF) fiber, optimized for long-reach data transmission up to 40 km.
The CWDM-SFP-1490-40-C delivers reliable Gigabit Ethernet connectivity for distances up to 40 km over single-mode fiber.
Yes, the module is fully Cisco compatible and interoperable with Catalyst, Nexus, and ISR series switches and routers.
This SFP operates at a central wavelength of 1490 nm, adhering to the ITU-T CWDM grid standards.
It supports 1 Gbps Gigabit Ethernet (1000Base-CWDM) data rates.
The transceiver uses an LC duplex connector for single-mode fiber termination.
Yes, it features Digital Optical Monitoring (DOM) for real-time diagnostics of optical power, temperature, and voltage.
Simply insert the module into a compatible SFP port until it clicks, then verify link status via your switch’s CLI or management GUI.
No, this SFP is designed for CWDM applications only. For DWDM, choose a dedicated DWDM SFP module.
No, the module is designed for standard ambient operating temperatures and does not need additional cooling.
The module operates reliably between 0 °C to +70 °C (commercial grade).
It meets ITU-T G.694.2 specifications for CWDM channel spacing and spectral performance.
Yes, you can combine it with other CWDM SFPs on a CWDM Mux/Demux to build multi-wavelength links.
It offers real-time monitoring of optical power, temperature, voltage, and laser bias current via DOM.
Most vendors offer at least a one-year warranty; confirm coverage details with your supplier.
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