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by Cisco
Product Line: Cisco DS-CWDM4G1610
Product Type: Optical Transceiver Module
Original price $0.00 - Original price $102.00
Original price
$0.00 - $102.00
Current price $102.00
Title: Used

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Product Description

The DS-CWDM4G1610 is designed for Cisco MDS 9000 series director switching modules and fabric switch ports, featuring a wavelength of 1610 nm, dual LC connectors, and operates within a temperature range of 0 °C to 70 °C. It supports 1/2/4 Gbps speeds over fiber channels with a side mode suppression ratio of 30 dB, ensuring quality signal transmission. This module has a link budget of 17.8 dB and accommodates a dispersion penalty of 3 dB at 25 km, with a minimum transmitter optical output power of 1.0 dBm and a maximum of 5.0 dBm.

Key Feature for the DS-CWDM4G1610

  • What wavelength does the SFP operate on?
    The SFP operates at a wavelength of 1610 nm.
  • Can the SFP be used with Cisco MDS 9000 Series Director Switching Modules and Fabric Switch Ports?
    Yes, it is designed for use with Cisco MDS 9000 Series Director Switching Modules and Fabric Switch Ports.
  • What types of networks is the SFP compatible with?
    The SFP supports fiber networks with speeds of 1/2/4 Gbps.
  • What is the operating temperature range for the SFP?
    The SFP can operate between 0 °C and 70 °C.
  • What is the minimum Side Mode Suppression Ratio (SMSR) of the SFP?
    The minimum SMSR for the SFP is 30 dB.
  • What are the minimum and maximum transmitter optical output power levels?
    The transmitter optical output power ranges from 1.0 dBm to 5.0 dBm.
  • How does the SFP handle signal dispersion over long distances?
    It incurs a dispersion penalty of 3 dB at 25 km, ensuring signal integrity over long distances.
  • What type of connector is used with this SFP?
    It uses a dual LC connector.
  • What are the dimensions of the SFP?
    The SFP measures 8.46 mm in height, 13.27 mm in width, and 56.64 mm in depth.
  • What is the link budget for the SFP?
    The link budget for the SFP is 17.8 dB.

Product Review

The Cisco DS-CWDM4G1610 SFP offers versatile speed options of 1/2/4 Gbps, catering to different network demands and is compatible with Cisco MDS 9000 Series, enhancing its utility in existing setups. However, its operational temperature range of 0 °C to 70 °C might limit deployment in environments with extreme temperatures. Additionally, with a minimum side mode suppression ratio of 30 dB and a link budget of 17.8 dB, it ensures reliable signal quality and strength over fiber channels, though the narrow operating temperature range could be a constraint for some applications.


The Cisco DS-CWDM4G1610 is a specialized networking hardware component designed for enhancing data transmission over fiber optic channels. This device operates at a wavelength of 1610 nm and is compatible with Small Form-factor Pluggable (SFP) ports, making it versatile for various networking setups. It is specifically engineered to support a range of data speeds, from 1 Gbps to 4 Gbps, catering to different network bandwidth requirements. This module is encased in a brown-colored housing and adheres to the Class I laser safety standard as per 21CFR1040, ensuring safe operation within networking environments. It is built to function optimally within a broad temperature range, from 0 °C to 70 °C for operating conditions and -40 °C to 85 °C for storage, which guarantees reliability across diverse environmental conditions. Key technical specifications include: - A Side Mode Suppression Ratio (SMSR) of at least 30 dB, which indicates a high-quality signal with minimal interference. - The transmitter's optical output power ranges between 1.0 dBm and 5.0 dBm, while the receiver's optical output power capacity spans from -15.7 dBm to 0 dBm. This variance supports efficient signal transmission and reception over distances. - The link budget of 17.8 dB provides a measure of the module's efficiency in maintaining signal strength over a fiber link. - The Transmitter Extinction Ratio stands at 4 dB, which specifies the contrast between the on and off states of the laser, contributing to signal clarity. Furthermore, the module exhibits a dispersion penalty of 3 dB at a distance of 25 km, indicating its effectiveness in minimizing signal dispersion over medium-range connections. The dual LC connector ensures compatibility with a broad array of fiber optic cables, facilitating easy integration into existing networks. Dimensionally, the Cisco DS-CWDM4G1610 measures 8.46 mm in height, 13.27 mm in width, and 56.64 mm in depth, making it compact enough for easy installation without requiring excessive space within networking equipment racks. This module is designed for use with Cisco MDS 9000 Series Director Switching Modules and Fabric Switch Ports, offering a seamless fit for Cisco's networking ecosystems. This compatibility ensures that users can leverage Cisco's networking solutions to achieve efficient, high-speed data transmission across their networks. In summary, the Cisco DS-CWDM4G1610 is a high-performance network module that supports enhanced data transmission capabilities over fiber optic channels. Its broad compatibility with Cisco networking solutions, coupled with its operational efficiency across a range of temperatures and network speeds, makes it an essential component for building or upgrading high-speed networks. Its design and technical specifications ensure that it can meet the demands of modern data centers, providing a reliable solution for high-bandwidth connectivity.


Item NumberDS-CWDM4G1610
Produced byCisco
Light Wavelength1610 nanometers
InterfaceSmall Form-factor Pluggable (SFP)
Medium TypeOptical Fiber
Transmission Rates1, 2, 4 Gbit/s
Enclosure ColorBrown
Safety Standard for LaserClass I according to 21CFR1040
Lowest Operating Temp0 degrees Celsius
Highest Operating Temp70 degrees Celsius
Lowest Storage Temp-40 degrees Celsius
Highest Storage Temp85 degrees Celsius
Side Mode Suppression RatioMinimum 30 decibels
Low End Transmitter Power1.0 dBm
Peak Transmitter Power5.0 dBm
Lowest Receiver Sensitivity-15.7 dBm
Top Receiver Sensitivity0 dBm
Optical Budget17.8 decibels
Minimum Extinction Ratio4 decibels
Maximum Dispersion Tolerance at 25km3 decibels
Attachment MechanismDual LC Connectors
Vertical Dimension8.46 mm
Horizontal Measurement13.27 mm
Length Measurement56.64 mm
CompatibilityCompatible with Cisco MDS 9000 Series Director Switching Modules and Fabric Switch Ports

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