Cisco PVDM3-256 256-Channel DSP Module
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PVDM3-256 Cisco 256 Channel Voice And Video DSP Module Refurbished

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Part Number#: PVDM3-256
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Short Description:
PVDM3-256 256-channel High-density Packet Voice And Video Digital Signal Processor (DSP) Module for Cisco 2900,3900 Series Integrated Services Routers | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
Exploring the PVDM3-256 Cisco 256 Channel Voice And Video DSP Module

In the realm of networking and communication, the integration of voice and video services is crucial for a seamless and efficient user experience. Cisco, a leading provider of networking solutions, offers the PVDM3-256, a high-density Packet Voice and Video Digital Signal Processor (DSP) module designed specifically for the Cisco 2900 and 3900 Series Integrated Services Routers. This module is engineered to enhance the capabilities of these routers, enabling them to handle a myriad of voice and video applications with superior performance and scalability.

Understanding DSP ModulesWhat is a DSP Module?

Digital Signal Processors (DSPs) play a pivotal role in modern communication systems, especially when it comes to processing voice and video signals. These specialized processors excel at executing mathematical operations in real time, making them ideal for applications like voice and video processing.

The Significance of DSPs in Networking

In the context of networking, DSPs are instrumental in managing the conversion of analog signals, such as voice, into digital formats for efficient transmission over data networks. They also play a crucial role in tasks like echo cancellation, noise reduction, and codec processing, ensuring high-quality audio and video communication.

PVDM3-256 OverviewKey Features

The PVDM3-256 module is equipped with 256 channels, signifying its high-density capability. This feature allows it to handle a large volume of voice and video traffic concurrently, making it suitable for deployments with demanding communication requirements.

Compatibility with Cisco 2900 and 3900 Series Routers

One of the notable aspects of the PVDM3-256 module is its compatibility with Cisco 2900 and 3900 Series Integrated Services Routers. These routers are widely used in enterprise environments, and the integration of the PVDM3-256 module enhances their functionality by providing dedicated processing power for voice and video applications.

Scalability for Growing Networks

Scalability is a critical factor in network design, especially for organizations experiencing growth. The PVDM3-256 module offers scalability in terms of channel capacity, ensuring that as the communication needs of an organization expand, the module can accommodate the increased demand without compromising performance.

Applications and Use CasesVoice over IP (VoIP)

One of the primary applications of the PVDM3-256 module is in Voice over IP (VoIP) implementations. VoIP has become a standard for voice communication in enterprises, leveraging data networks to transmit voice signals. The high channel density of the PVDM3-256 makes it well-suited for large-scale VoIP deployments.

Video Conferencing

As the demand for remote collaboration tools continues to rise, video conferencing has become a staple in modern business communication. The PVDM3-256 facilitates efficient video conferencing by offloading the processing burden from the router's main CPU, ensuring a smooth and uninterrupted conferencing experience.

Unified Communications

Unified Communications (UC) platforms integrate various communication tools, such as voice, video, messaging, and conferencing, into a single, cohesive system. The PVDM3-256 contributes to the effectiveness of UC solutions by providing dedicated DSP resources for handling the diverse communication modalities within the platform.

Performance EnhancementsOffloading CPU Processing

By offloading voice and video processing tasks to the dedicated DSPs on the PVDM3-256 module, the main CPU of the router is freed up to handle other essential networking functions. This offloading mechanism enhances the overall performance of the router, ensuring optimal operation even under heavy communication loads.

Improved Quality of Service (QoS)

Quality of Service (QoS) is paramount in voice and video communication. The PVDM3-256, with its specialized DSPs, contributes to superior QoS by efficiently managing the processing of multimedia traffic. This results in reduced latency minimized jitter, and enhanced overall communication quality.

Support for Advanced Codecs

The PVDM3-256 module supports a range of advanced codecs, enabling efficient compression and decompression of voice and video data. This support for modern codecs ensures that the module can adapt to evolving industry standards, providing longevity and future-proofing for network deployments.

Advantages of PVDM3-256Scalability

One of the key advantages of the PVDM3-256 is its scalability. As communication networks grow, the module can seamlessly scale to meet the increasing demand for processing power, ensuring a future-proof solution for evolving technological needs.

Enhanced Quality of Service

By leveraging advanced DSP techniques, the PVDM3-256 significantly enhances the quality of service in voice and video communication. This is particularly crucial in applications where clarity and reliability are paramount, such as in telecommunication and video conferencing.


Despite its advanced capabilities, the PVDM3-256 offers a cost-effective solution for high-density packet voice and video processing. Its efficiency in handling a large number of channels translates to optimized resource utilization, making it a cost-efficient choice for organizations.

Resiliency and High Availability

The PVDM3-256 Cisco module is designed to provide resiliency and high availability for voice and video digital signal processing capabilities in Cisco routers and other networking devices.

One way it achieves this is through the use of redundant power supplies and fans, which help to ensure that the module continues to function even if one of these components fails. This helps to minimize downtime and ensure that voice and video calls can continue to be handled even in the event of a failure.

Another way that the model provides resiliency and high availability is through the use of load balancing and failover capabilities. This allows the module to distribute the workload across multiple channels, ensuring that no single channel is overwhelmed. Additionally, in case of failure of one of the channels, the load is automatically shifted to other channels to ensure continuity of service.

Additionally, this item supports advanced conferencing features such as multiparty conferencing, which allows multiple parties to participate in a conference call or video call simultaneously, even if one of the participants' connection fails, the conference can continue.

Additionally, The model can work in a High Availability setup by having a redundant module, if one module fails the other will take over the processing seamlessly, ensuring continuity of service.

General Information for the Cisco 256-Channel Voice & Video Module
  • Manufacturer: Cisco
  • Model Number or SKU# PVDM3-256
  • Product Type: Voice Module
Technical Information of DSP Module
  • Application/Usage: Voice
  • Maximum Number of Channels in Low-Complexity Codecs: 256
  • Maximum Number of Channels in Medium-Complexity Codecs: 192
  • Maximum Number of Channels in High-Complexity Codecs: 120
  • Compatibility:
  • Cisco 2900 Series Integrated Services Routers
  • 3900 Series Integrated Services Routers

Finally, the PVDM3-256 stands as a testament to Cisco's commitment to delivering cutting-edge solutions for voice and video communication. Its 256-channel high-density capabilities, seamless integration with Cisco 2900 and 3900 Series ISRs, and adaptability to diverse applications make it a valuable asset for businesses of all sizes. As the landscape of communication continues to evolve, the PVDM3-256 remains a reliable and scalable choice, contributing to the efficiency and success of modern networking environments. Whether it's VoIP, video conferencing, or unified communications, the PVDM3-256 sets the standard for DSP modules in the Cisco ecosystem.

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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