PVDM4-32 Router Voice DSP Module
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PVDM4-32
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PVDM4-32 Overview
32-channel high-density voice and video DSP module PVDM4-32
Overview
PVDM4-32 Overview
Cisco PVDM4-32=, 51 mm, 67 mm, 17 mm, 36 g, 0 - 50 °C
The Cisco® Packet Voice Digital Signal Processor Modules (PVDMs) enable Cisco 4000 Series Integrated Services Routers (ISRs) to provide rich-media capabilities such as high-density voice connectivity, conferencing, transcoding, media optimization, transrating, and secure voice for Cisco Unified Communications solutions. These new modules support unprecedented scale while allowing for a smaller solution footprint than ever before.
Features and Benefits
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 4000 Series ISRs contain built-in, nonconfigurable digital signal processors (DSPs) and do not require any additional PVDMs for voice packetization.
Quick Specs
Figure 1 shows the appearance of PVDM4-32.
Product Code | PVDM4-32 |
Slot | On-board motherboard or T1/E1 module slot |
Description | 32-channel high-density voice DSP module |
Low Complexity | 32 |
Medium Complexity | 24 |
High Complexity | 16 |
Compare to Similar Items
Product Code | PVDM4-64 | PVDM4-32 | PVDM4-128 |
Slot | On-board motherboard or T1/E1 module slot | On-board motherboard or T1/E1 module slot | On-board motherboard or T1/E1 module slot |
Description | 64-channel high-density voice DSP module | 32-channel high-density voice DSP module | 128-channel high-density voice DSP module |
Low Complexity | 64 | 32 | 128 |
Medium Complexity | 48 | 24 | 96 |
High Complexity | 32 | 16 | 64 |
Solution
How to use this product to build Network for Small Business (Requires Router & Voice Module)?
See here: SMB Network Options
Summary Description
Cisco PVDM4-32, 51 mm, 67 mm, 17 mm, 36 g, 0 - 50 °C
Need help with PVDM4-32?
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Specification
PVDM4-32 Specification
PVDM4 Modules Specifications | |
Feature | Motherboard PVDMs (PVDM4s) |
Components | |
DSP | Multicore DSP technology |
Interface | Integrated Services Card (ISC) slot on motherboard or T1/E1 NIM |
Features | |
Operating temperature | 32° to 122°F (0° to 50°C) |
Voltage | 3.3V |
Current | 1.47A |
Power | 4.85W |
Weight | 0.08 lb (36 g) |
Dimensions (H x W x D) | 0.67 x 2.50 x 2.62 in. (1.7 x 5.1 x 6.7 cm) |
Regulatory and Compliance | |
Safety | Complies with: ● IEC 60950 (worldwide) ● AS/NZS 60950-1 (Australia and New Zealand) ● CAN/CSA-C22.2 No. 60950-1, 1st and 2nd Ed. (Canada) ● GB4943-95 (People's Republic of China) ● EN60950-1, 1st and 2nd Ed. (CENELEC; includes EU and EFTA) ● NOM-019-SCFI-1998 (Mexico) ● UL 60950-1, 1st and 2nd Ed. (United States) |
Homologation | Platform dependent |
Mean time between failures (MTBF) | System dependent |
EMC | |
Emissions | ● CISPR22, Class B ● EN55022, Class B, CFR47, Part 15, Subpart B, Class B |
Harmonics | EN61000-3-2 |
Flicker | EN61000-3-3 |
Immunity | ● CISPR24 ● EN 55024 ● EN50082-1 |
Electrostatic discharge (ESD) | EN 61000-4-2 |
RF fields | EN 61000-4-3 |
EFT | EN 61000-4-4 |
Surge | EN 61000-4-5 |
Conducted RF | EN 61000-4-6 |
Power-frequency magnetic fields | EN 6100-4-8 |
Voltage dips, sags, and interruptions | EN 61000-4-11 |
Frequently Asked Questions
What is the primary function of the Cisco PVDM4-32 module in an enterprise network? +
The PVDM4-32 is a high-density digital signal processor (DSP) module designed for Cisco Integrated Services Routers. It offloads voice and video processing tasks from the router's main CPU, enabling functions like media transcoding, conferencing, and echo cancellation. This ensures your router maintains high performance while managing simultaneous voice and video streams across your network.
How many voice channels does the PVDM4-32 support? +
The PVDM4-32 supports up to 32 concurrent voice channels, depending on the codecs used and the specific voice features enabled. It is optimized for high-density environments where efficient processing of multiple simultaneous calls is required. By balancing load across the DSP, it provides consistent call quality without overburdening the host router's system resources.
Is the PVDM4-32 compatible with my existing Cisco router infrastructure? +
This module is compatible with various Cisco 4000 Series Integrated Services Routers. It plugs directly into the onboard DSP slots, allowing for flexible scaling of voice capacity. To confirm compatibility with your specific router model and current hardware configuration, we recommend checking your system’s documentation or consulting our sales team to ensure optimal integration with your existing network architecture.
Can the PVDM4-32 handle video processing, or is it strictly for audio? +
The PVDM4-32 is engineered for both voice and video processing. It provides the necessary digital signal processing power to handle modern rich-media applications, including video transcoding and conferencing capabilities. By supporting these intensive tasks, the module allows your gateway to serve as a high-performance hub for unified communications, bridging various endpoints and media types seamlessly.
Does the PVDM4-32 require additional software licensing to function? +
While the hardware module is plug-and-play at the physical layer, the voice and video features it enables often require specific Cisco IOS or IOS-XE software licenses. You should verify that your router has the necessary Unified Communications or security feature sets enabled to utilize the DSP resources fully for your intended voice and video applications.
What are the performance benefits of using a dedicated PVDM4-32 module? +
Utilizing a dedicated DSP module like the PVDM4-32 significantly reduces latency and jitter for voice and video traffic. By delegating signal processing to specialized hardware, you prevent CPU spikes on the router, which could otherwise degrade overall packet processing. This separation of duties ensures high availability and reliable communication quality for mission-critical enterprise voice services.
How is the PVDM4-32 module physically installed in a Cisco router? +
The module installs easily into the designated PVDM slots located on the motherboard of compatible Cisco ISR routers. Installation involves powering down the device, inserting the module into the slot until it clicks, and securing it properly. Once installed, the router will automatically recognize the module, and the DSP resources will become available for configuration through the command-line interface.
How does the PVDM4-32 manage load balancing during high call volume? +
The PVDM4-32 employs sophisticated internal algorithms to manage DSP resource allocation efficiently. When call volumes increase, the module dynamically manages channels to ensure quality of service is maintained. It effectively queues and processes incoming traffic, providing a scalable solution that maintains consistent performance standards even during peak usage periods within a busy corporate telecommunications environment.
How can I obtain a bulk quote for multiple PVDM4-32 units for a large project? +
At BuyRouterSwitch.com, we specialize in supporting large-scale enterprise deployments. If you require a high volume of PVDM4-32 modules for your infrastructure project, please contact our sales department directly. We provide customized quotes tailored to your project requirements, helping you manage your procurement budget effectively while securing the necessary hardware for your network rollout.
Why should I choose BuyRouterSwitch.com for my Cisco hardware procurement? +
BuyRouterSwitch.com is a trusted source for authentic enterprise networking equipment. We prioritize professional sourcing and secure procurement processes, ensuring that every component meets rigorous industry standards. By choosing us, you benefit from our streamlined ordering process and dedicated support, helping you secure high-quality, genuine Cisco hardware for your network needs with confidence and ease.
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