Cisco NIM-4FXSP 4 Port Networking Expansion Module Voice Fax Module
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NIM-4FXSP Cisco 4 Ports Network Interface Module Refurbished

Availability: In Stock
Part Number#: NIM-4FXSP
List Price was: $2500.00
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Short Description:
NIM-4FXSP 4 Ports Network Interface Module FXS, FXS-E and DID for Voice 4 FXS/DID Network | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

Redundancy and High Availability Features

The NIM-4FXSP is a network interface module manufactured by Cisco, designed to provide redundant and high-availability features for networking equipment. This module has four ports, each of which can support a Fast Ethernet (10/100 Mbps) connection using the RJ-45 connector.

One of the key features of the NIM-4FXSP module is its support for redundancy. This means that if one of the ports or interfaces fails, another port can take over automatically, without disrupting network connectivity. The module is designed to provide seamless switchover between the primary and backup interfaces, ensuring that data continues to flow uninterrupted.

Another important feature of the NIM-4FXSP module is its high availability. This means that the module is designed to operate continuously, with minimal downtime or disruptions. The module can detect potential failures or issues, and take proactive steps to prevent them from affecting the network. For example, the module can automatically reroute traffic to other interfaces if it detects congestion or other issues.

In addition to redundancy and high availability, the NIM-4FXSP module also supports a range of other features to ensure reliable network performance. These include advanced Quality of Service (QoS) capabilities, which prioritize certain types of traffic to ensure that critical data is always delivered quickly and efficiently. The module also supports a range of management and monitoring tools, allowing network administrators to monitor performance, detect issues, and take proactive steps to maintain network uptime.

Troubleshooting Common Issues

The Cisco NIM-4FXSP is a 4-port network interface module that provides Fast Ethernet connectivity over fiber-optic cables. Here are some common issues that you may encounter with this module and troubleshooting steps to resolve them:

No Link: If there is no link on any of the ports, check the following:

  • Make sure that the fiber-optic cables are properly connected to the module and the remote device.
  • Verify that the remote device is powered on and operational.
  • Ensure that the ports on both ends of the connection are configured with compatible settings, such as speed, duplex, and VLAN settings.

Intermittent Link: If the link is intermittent, try the following:

  • Verify that the fiber-optic cables are properly seated and not damaged.
  • Check for any bent or broken pins on the module or the remote device.
  • Check the configuration of the ports to ensure that they are compatible and properly configured.

Slow Performance: If you experience slow performance, consider the following:

  • Check the utilization of the link to determine if it is operating at capacity.
  • Check for any errors on the ports, such as CRC errors or collisions.
  • Check the speed and duplex settings to ensure that they are configured appropriately for the network environment.

Module Not Recognized: If the module is not recognized, try the following:

  • Verify that the module is properly seated in the slot.
  • Check that the module is compatible with the Cisco device.
  • Check for any error messages in the device logs that may indicate an issue with the module or slot.

Error Messages: If you receive any error messages, review the device logs for more information and follow the recommended troubleshooting steps.

Configuring Quality of Service (QoS)

The NIM-4FXSP is a Cisco network interface module that provides four ports for connecting to a network. Quality of Service (QoS) is a feature of the module that allows for the prioritization of network traffic based on specific criteria.

Configuring QoS on the NIM-4FXSP involves the following steps:

  • Identify the traffic classes: The first step in configuring QoS is to identify the traffic classes on the network. These are typically defined based on the type of traffic, such as voice, video, or data.
  • Define the QoS policies: Once the traffic classes have been identified, QoS policies can be defined for each class. These policies specify the bandwidth and priority for each traffic class.
  • Apply the QoS policies: After the QoS policies have been defined, they can be applied to the network interface module. This ensures that the traffic on the network is prioritized according to the defined policies.
  • Monitor and adjust: Finally, it is important to monitor the network and adjust the QoS policies as necessary. This ensures that the network is performing optimally and that the most important traffic is being prioritized appropriately.

By configuring QoS on the NIM-4FXSP, network administrators can ensure that critical traffic, such as voice and video, are given priority over less important data traffic. This can help to ensure that the network performs optimally and that users have a high-quality experience.

General Information

  • Manufacturer Cisco Systems, Inc
  • Product Name 4-Port Network Interface Module - FXS, FXS-E and DID
  • Product Type Voice Interface Card (VIC)

Technical Information

  • Application/Usage Voice

Interfaces / Ports

  • Interfaces/Ports Details 4 x FXS/DID Network


  • Cisco 4000 Series Integrated Services Routers
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

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.

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