Cisco CFP-40G-SR4
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CFP-40G-SR4 Cisco 40GBPS Multi-Mode Transceiver Module Refurbished

Availability: In Stock
Part Number#: CFP-40G-SR4
List Price was: $1288.46
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Short Description:
CFP-40G-SR4 40GBPS 40GBase-SR4 Multi-mode Fiber 100m 850nm MPO Connector CFP Ethernet Transceiver Module | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Troubleshooting Common Issues

The CFP-40G-SR4 Cisco Multi-Mode Ethernet Transceiver Module is a high-speed optical transceiver used for data transmission over optical fiber cables. Despite its high reliability, there are some common issues that users may encounter when using this module. Here are some common problems and their troubleshooting solutions:

  • Link Failure: If the link status shows as down, it may be due to an incorrect configuration of the transceiver, or the fiber cable may be damaged. To resolve this issue, check the configuration of the transceiver and replace the fiber cable if necessary.
  • Low Transmission Speed: If the transmission speed is lower than expected, it may be due to a lack of signal quality. To resolve this issue, check the fiber cable and ensure that it is not damaged or kinked. Additionally, check the transceiver's signal output power and adjust it if necessary.
  • High Error Rate: If the error rate is high, it may be due to a problem with the transceiver or the fiber cable. To resolve this issue, check the transceiver's signal quality and adjust it if necessary. Additionally, check the fiber cable for any physical damage.
  • Signal Loss: If the signal is lost, it may be due to a problem with the transceiver or the fiber cable. To resolve this issue, check the transceiver's signal output power and adjust it if necessary. Additionally, check the fiber cable for any physical damage.
  • Module Compatibility: If the module is not compatible with the device, it may be due to an incorrect version or type of the transceiver. To resolve this issue, check the specifications of the transceiver and ensure that it is compatible with the device.

Simplifying Network Upgrades

The CFP-40G-SR4 Cisco Multi-Mode Ethernet Transceiver Module is designed to simplify network upgrades by offering a flexible and cost-effective solution for high-speed data transmission. The module is compatible with both 40 Gigabit Ethernet (GbE) and 100 Gigabit Ethernet (100GbE) networks, making it an ideal choice for organizations looking to upgrade their existing infrastructure.

One of the key benefits of the CFP-40G-SR4 is its ability to support both short-reach (SR) and long-reach (LR) applications, providing organizations with the flexibility to choose the best transmission method for their specific needs. This makes it easier for organizations to upgrade their networks without having to replace existing components or implement major infrastructure changes.

In addition, the module supports multiple fiber types, including single-mode fiber (SMF) and multimode fiber (MMF), allowing organizations to take advantage of the fiber type that is already in place in their network. This helps to minimize the costs associated with upgrading fiber infrastructure and reduces the amount of disruption to existing network operations.

Another benefit of the CFP-40G-SR4 is its ability to support high-speed data transmission up to 100 meters, providing organizations with the capability to extend the reach of their network without sacrificing performance. This is particularly useful for organizations that need to expand their network coverage to reach remote locations or connect multiple sites.

The Importance of Transceiver Quality

The quality of the transceiver module is crucial in ensuring reliable and efficient data transmission in a network system. In the case of the CFP-40G-SR4 Cisco Multi-Mode Ethernet Transceiver Module, the quality of the transceiver can greatly impact the performance of the network.

A high-quality transceiver will have a stable output power, low insertion loss, and good temperature stability, which will result in a more stable and consistent signal transmission. This will prevent any data loss or corruption, reducing the chance of network downtime or data errors.

Furthermore, the quality of the transceiver can also impact the maximum distance that the data can be transmitted. A high-quality transceiver will have a longer transmission range, allowing for more flexible network design and deployment options.

Moreover, a high-quality transceiver module will be more durable and have a longer lifespan, reducing the need for frequent replacement and maintenance. This will reduce the total cost of ownership and improve the overall return on investment for the network system.

Product Information

  • Device Type : CFP Transceiver Module - Mpo Multi-mode
  • Form Factor : Plug-in Module
  • Cabling Type : 40gbase-sr4
  • Data Transfer Rate : 40 Gbps
  • Optical Wave Length : 850 Nm
  • Data Link Protocol : 40 Gigabit Ethernet
  • Max Transfer Distance : 490 Ft


  • P/n: Ws-x6904-40g-2t, Ws-x6904-40g-2t=, Ws-x6904-40g-2txl, Ws-x6904-40g-2txl=

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.

Building a fibre-optic network calls for a lot of planning and consideration of many factors. Transceivers are part of the many devices used to build optical fibre systems. A transceiver serves the combined roles of a transmitter and a receiver in that it transmits and receives signals. They are most common in communication equipment such as cellular phones, cordless telephone sets, and radios. Small form factors are required as networks become dense and space is limited, which sees transceivers included in chipsets.

In local area networks (LAN), a transceiver is used to connect a computer to printers and other devices on the network. Usually, the transceiver is integrated into the Network Interface Card (NIC)

Typical Roles of a Transceiver

  • Used to convert frequencies from IF to RF.
  • Widespread use in wireless communication to transmit data – voice, data, and video.
  • RF transceivers are used in communication devices to support radio and TV signal transmission, digital signals transmission, and satellite communication.
  • Collision detection – detection of simultaneous signals on the network.
  • Transceivers can be deployed to provide a jabber function to interrupt the transmission of long data stream outputs.

Look no further for all types of transceivers including fibre optic transceivers, wireless transceivers, Ethernet transceivers, and RF transceivers. All these transceivers have different characteristics and support full-duplex communication, but the principle behind their work remains the same. Different types of transceivers will have varying numbers of ports used in the transceiver networking connections.

RF Transceivers: these devices are used to transmit video or voice data over a wireless medium. Commonly used for satellite communication, radio transmission, and ITE/WiMax/WLAN networks. The radio transceiver works by silencing the receiver when it is transmitting. There is an electronic switch that facilitates the connection of both the receiver and transmitter on the same antenna. The switch protects the receiver from damage that may be caused by the transmitter output.

Fiber Optic Transceivers: Also referred to as optical modules or fibre optical transceivers. Used to transmit data in fibre optic technology. The network must also have electronic components to encode or decode data into light signals.

Ethernet Transceivers: Basically used to connect electronic devices in a network so that they are able to transmit and receive data. It is also referred to as a media access unit (MAU). The best application of these transceivers is in the specification of IEEE 802.3 and Ethernet. Ethernet transceivers will detect a collision, provide Ethernet interface processing, convert digital data, and provide access to the network.

Wireless Transceivers: Wireless transceivers are a fundamental component necessary for data delivery in wireless networks. These transceivers have two layers. The physical layer has a baseband processor and RF front end. The processor converts a bitstream to a collection symbol flow for data transmission. The second layer is a MAC layer for link traffic control in contacting wireless links, improving data throughput, and preventing collisions.

We guarantee our customers high quality and reliability for all our transceiver networking solutions, irrespective of the type and size of your network.

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