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by Cisco
Product Line: Cisco ONS Series
Product Type: DWDM SFP Module
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Product Description

The ONS-SC-2G-46.9 is a Cisco-based optical networking module that operates at a wavelength of 1546.92 nm, with a minimum receiver wavelength of 1260 nm and a maximum receiver wavelength of 1620 nm. It features a transmitter stability range from -100 pm to +100 pm, a spectral width of 200 pm, and supports transmit power levels from 0 dBm to 4 dBm. Designed for durability and efficiency, it has an MTBF of 5,346,554 hours, a maximum power consumption of 1 W, and is compatible with LC-LC cable connections, adhering to the ITU G694 and GR2918 standards, with operational temperatures ranging from 0 °C to 70 °C.

FAQs for the ONS-SC-2G-46.9

  • What is the wavelength of the transmitter in nm?
    The transmitter operates at a wavelength of 1546.92 nm.
  • What is the range of operating temperatures for part number 1546.92 nm?
    It operates within a temperature range of 0 °C to 70 °C.
  • What types of cable connections are supported?
    The device supports LC-LC cable connections.
  • How does the part number 1546.92 nm ensure signal quality over its operational range?
    It maintains transmitter stability between -100 pm (low range) and +100 pm (high range).
  • What is the spectral width of the transmitter?
    The spectral width of the transmitter is 200 pm.
  • What are the minimum and maximum receiver wavelengths for part number 1546.92 nm?
    The minimum receiver wavelength is 1260 nm, and the maximum is 1620 nm.
  • What is the transmitter's power range?
    The transmitter's power range is from 0 dBm (minimum) to 4 dBm (maximum).
  • How long is the MTBF (Mean Time Between Failures) for part number 1546.92 nm?
    The MTBF is 5,346,554 hours.
  • What is the maximum power consumption of the device?
    The maximum power consumption of the device is 1 W.
  • Which standards does part number 1546.92 nm comply with?
    It complies with ITU G694 and GR2918 standards.

Product Review

The CISCO ONS-SC-2G-46.9 offers a broad receiving wavelength range from 1260 nm to 1620 nm, accommodating various optical networking standards (ITU G694, GR2918) with a notable MTBF of 5,346,554 hours, indicating high reliability. However, its transmitter stability ranges from -100 to +100 pm, potentially limiting performance in environments requiring precise wavelength stability. Additionally, the module's spectral width of 200 pm and transmit power range (0 to 4 dBm) are adequate for most applications, but the maximum power consumption of 1 W and temperature sensitivity (0 °C to 70 °C) may restrict its use in more demanding or energy-conscious deployments.


The CISCO ONS-SC-2G-46.9 is a specialized optical networking module designed to facilitate high-capacity, long-distance communication over fiber optic networks. This module operates at a specific wavelength of 1546.92 nm, which falls within the C-band, widely used in telecommunications due to its low attenuation and dispersion characteristics. This makes the CISCO ONS-SC-2G-46.9 suitable for a wide range of applications, from metropolitan area networks (MANs) to expansive cross-country network backbones. One of the key features of this module is its receiver sensitivity range, which spans from a minimum wavelength of 1260 nm to a maximum of 1620 nm. This wide range ensures compatibility with various fiber optic technologies and signals, enhancing the module's versatility in different networking environments. The transmitter's stability is another critical specification, with a low range of -100 picometers (pm) and a high range of +100 pm. This stability is crucial for maintaining signal integrity over long distances, reducing errors, and improving overall network reliability. The spectral width of the CISCO ONS-SC-2G-46.9 stands at 200 pm, which is indicative of the module's ability to maintain a focused signal, further contributing to its efficiency in transmitting data over long distances without significant signal degradation. In terms of power, the module operates within a range of 0 dBm to 4 dBm for transmit power, ensuring adequate signal strength for various applications while maintaining energy efficiency. Energy efficiency is further highlighted by the module's maximum power consumption of just 1 Watt, making it an economical choice for large-scale deployments. Additionally, the Mean Time Between Failures (MTBF) is rated at 5,346,554 hours, underscoring the module's reliability and durability in demanding operational environments. For connectivity, the CISCO ONS-SC-2G-46.9 utilizes the LC-LC cable connection standard, favored for its compactness and ease of use, especially in dense networking environments. This module adheres to critical industry standards, including ITU G694 and GR2918, ensuring its compatibility and interoperability within a broad spectrum of optical networking systems. Operating temperature is another vital aspect of this module, with a range from 0 °C to 70 °C. This wide temperature range ensures stable operation in various climatic conditions, from cool data centers to warmer, more challenging environments. Key specifications include: -
  • Wavelength: 1546.92 nm
  • MTBF: 5,346,554 Hours
  • Maximum Power Consumption: 1 W
In summary, the CISCO ONS-SC-2G-46.9 is engineered for high performance, reliability, and efficiency. Its technical specifications make it an ideal choice for a wide range of optical networking applications, ensuring powerful, stable, and efficient operation across diverse operational scenarios.


Part Number CISCO ONS-SC-2G-46.9
Manufacturer CISCO
Emission Wavelength 1546.92 nm
Lowest Receiver Wavelength 1260 nm
Highest Receiver Wavelength 1620 nm
Low-End Transmitter Stability -100 pm
High-End Transmitter Stability +100 pm
Bandwidth 200 pm
Minimum Output Power 0 dBm
Peak Output Power 4 dBm
Mean Time Between Failures (MTBF) 5,346,554 Hours
Max Power Usage 1 W
Fiber Connector Type LC-LC
Compliance ITU G694, GR2918
Min Operational Temperature 0 °C
Max Operational Temperature 70 °C

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