PVDM4-32 Cisco 32 Channel High density Voice DSP Module Refurbished

The Cisco PVDM4-32 is a type of module made by Cisco Systems, a company that creates networking equipment. This module is used to process digital signals in a particular way for voice communication. It's designed to handle a specific number of channels, allowing multiple conversations to happen at the same time.

Digital Signal Processing (DSP) involves modifying or analyzing digital signals, like audio or video, to enhance their quality or extract useful information. In the case of the PVDM4-32, it focuses on voice signals. Think of it as cleaning up and organizing the voices you hear during a call.

This module is part of the fourth generation, which means it's an improved version compared to earlier models. These improvements might include better performance, enhanced features, or more efficient processing.

The PVDM4-32 can handle up to 32 channels simultaneously. Imagine it as 32 separate pipelines for conversations. Each pipeline (or channel) can carry a single conversation, allowing many people to talk without losing the quality of their voice.

The term "high-density" means that this module can manage a large number of voice channels in a compact space. It's like having a powerful engine in a small car – it can do a lot without taking up too much room.

Application in Networking

In networks, these modules are often used in devices like routers or switches. When someone makes a call over the internet, this module helps in converting their voice into data packets that can travel through the network efficiently.

Enhanced Voice Quality: By processing voice signals effectively, it ensures that the voices on calls are clear and understandable.

Efficient Call Handling: With its ability to manage multiple conversations simultaneously, it's great for businesses or networks with high call volumes.

Space Optimization: Its high-density design means it can handle many conversations without taking up much physical space in a networking device.

Improved Network Performance: By efficiently handling voice signals, it contributes to a smoother overall network performance, especially in VoIP (Voice over Internet Protocol) systems.

These modules are used in various scenarios:

Business Communications: Offices and enterprises use them to manage large volumes of calls smoothly.

Telecommunication Providers: Companies offering phone and internet services benefit from these modules in their infrastructure.

Remote Working Solutions: With the rise of remote work, these modules help ensure clear communication in virtual meetings.

The Cisco PVDM4-32 is a high-performance voice digital signal processor (DSP) module designed for use with Cisco Unified Communications systems. It is capable of supporting up to 32 simultaneous voice channels, making it suitable for use in a variety of applications, including voice and video over IP (VoIP), conferencing, and transcoding.

This Product is equipped with a powerful DSP engine that is capable of handling a range of advanced voice and video codecs, including G.711, G.729, G.722, and H.264. It also supports a variety of networking protocols, including SIP, H.323, and MGCP, making it easy to integrate with a variety of systems.

In addition to its high-performance capabilities, This Product is also designed to be energy efficient, helping to reduce power consumption and operating costs. It is also backed by Cisco's industry-leading technical support and service offerings, giving you peace of mind and ensuring that you have access to the resources you need to keep your system running smoothly.

The PVDMs support digital voice connections, conferencing, universal transcoding, and media optimization services:

• T1/E1 voice: One of the primary uses of PVDMs is to packetize digital voice into IP packets to enable Time-Division Multiplexing (TDM) digital voice applications.
• Conferencing: PVDM modules support ad hoc and meet-me conferencing with various codecs in conjunction with Cisco Unified Communications Manager and Cisco Unified Communications Manager Express.
• Universal transcoding: In conjunction with Cisco IOS Software, the PVDMs support universal transcoding, which allows conversion from any supported codec to any other supported codec.
• Transrating: The PVDMs support transrating, in which the same codec is repacketized in order to connect dissimilar networks that have different codec packetization periods.
• Voice-quality management: The PVDMs perform compression, voice-activity detection, jitter management, and echo cancellation. The echo cancellation offered in the PVDMs has a tail length of 128 milliseconds and complies with ITU-T G.168.
• Energy savings: The motherboard PVDMs (PVDM4s) offer multiple power-saving modes, including a power-saver mode when the module is not in use. In power-saver mode, each PVDM4 can save up to 5 watts of power.
• The analog voice modules (FXS, FXO, and E/M) and Basic Rate Interface (BRI) digital voice modules for the Catalyst 8000 and the 4000 Series ISRs contain built-in, nonconfigurable Digital Signal Processors (DSPs) and do not require any additional PVDMs for voice packetization.

The Cisco PVDM4-32 32-Channel Voice DSP Module is designed to be highly reliable, with a number of features that help to ensure consistent, dependable performance.

For example, This Product is equipped with a powerful DSP engine that is capable of handling a range of advanced voice and video codecs, including G.711, G.729, G.722, and H.264. This helps to ensure that your system can handle a wide range of voice and video traffic, even under heavy load.

In addition, This Product is designed to be energy efficient, helping to reduce power consumption and operating costs. This can help to extend the life of your system and reduce the risk of component failure due to overheating.

Finally, This Product is backed by Cisco's industry-leading technical support and service offerings, ensuring that you have access to the resources you need to keep your system running smoothly. Overall, This Product is a highly reliable voice DSP module that is well-suited for use in a variety of applications.

Here are some additional technical specifications for the Cisco PVDM4-32 32-Channel Voice DSP Module:

• DSP processing: This Product has DSP processing capabilities of up to 480 MHz for each DSP chip and a total of 960 MHz for two DSP chips.
• Channel density: This Product supports 32 channel densities per module.
• Voice and video codec support: This Product supports a wide range of voice and video codecs, including G.711, G.729, G.722, G.722.1, G.722.1C, and H.263, H.264.
• Echo cancellation: This Product supports software-based echo cancellation.
• Compact form factor: This Product is designed to be compact and can be inserted in the Cisco ISR and other compatible platforms.
• Power consumption: This Product has a power consumption of 15W.
• Bandwidth: This Product provides up to 6.4 Gbps of total bandwidth for video, voice, and fax DSP services, depending on the specific version.
• Quality of service: This Product supports advanced Quality of Service (QoS) features such as traffic prioritization, congestion management, and rate limiting, to help ensure reliable network performance.
• Management: This Product can be managed through a web-based interface, as well as industry-standard protocols such as SNMP and Telnet. It also supports Cisco's industrial automation protocol, Industrial Ethernet 3000.

• Manufacturer: Cisco
• Model Number or SKU# PVDM4-32
• Product Name: 32-Channel Voice DSP Module
• Product Type: Voice Module

• Application/Usage: Voice
• DSP Type: Multicore DSP technology
• Interface Integrated Services Card (ISC) slot on the motherboard or T1/E1 NIM

• Total Number of Channels: 32
• Channel Complexity: Low

• Voltage 3.3V
• Current 1.47A
• Wattage: 4.85W
• Operating temperature 32° to 122°F (0° to 50°C)

• MTBF System dependent
• Homologation Platform dependent
• Complies with IEC 60950 (worldwide)

• Cisco 4451-X Integrated Services Routers (ISRs)

In general, the Cisco PVDM4-32 Fourth Generation 32-Channel High-Density Packet Voice Digital Signal Processor Module is a sophisticated piece of technology that plays a crucial role in managing voice communication in networks. Its ability to handle multiple conversations simultaneously while maintaining high voice quality makes it a valuable component in modern communication systems.