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
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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 a router? +
The PVDM4-32 is a high-density digital signal processor module designed to handle voice and video processing tasks on Cisco ISR 4000 series routers. It offloads intensive media transcoding, conferencing, and voice gateway functions from the router's main CPU, ensuring superior voice quality and efficient resource utilization for enterprise-grade IP telephony deployments.
How many voice channels does the PVDM4-32 support? +
This specific module provides a capacity of 32 channels. This capacity is optimized for medium-scale enterprise branch offices that require a balance between density and performance. It enables simultaneous processing of high-quality voice calls, ensuring that your unified communications environment maintains latency-sensitive performance even during peak traffic periods.
Which router platforms are compatible with the PVDM4-32 DSP? +
The PVDM4-32 is specifically engineered for use with Cisco Integrated Services Router (ISR) 4000 series platforms. These modules plug directly into the dedicated PVDM slots on the router motherboard, providing a streamlined architectural approach to managing voice-over-IP media services without the need for additional external gateway hardware.
Can the PVDM4-32 handle video processing, or is it strictly for audio? +
While the primary application is voice services, the architecture of the PVDM4-32 is designed to support both voice and video processing capabilities. This makes it a versatile solution for modern enterprises that require integrated support for video conferencing and media-rich unified communication sessions directly at the branch edge.
How does the PVDM4-32 module impact the overall system reliability? +
By offloading critical real-time media processing to a dedicated DSP, the PVDM4-32 significantly enhances system stability. It prevents the router’s primary control plane from becoming overwhelmed by media transcoding tasks, which effectively minimizes jitter and packet loss, thereby providing a more consistent and professional experience for all users connected to the voice network.
Are there specific licensing requirements for activating the PVDM4-32? +
The PVDM4-32 operates as a hardware-based resource for your Cisco router. While the module itself is a physical component, you must ensure that your Cisco IOS XE software configuration supports the associated voice features. Always verify your current feature set to ensure that your specific call-processing requirements are fully covered within your existing software entitlement.
What is the best deployment scenario for the PVDM4-32 module? +
This module is ideal for branch offices requiring a robust, scalable voice gateway. It is perfect for organizations transitioning to centralized SIP trunking or those that need to maintain local survivability for voice services. Its density allows IT managers to consolidate hardware while maintaining the processing headroom necessary for high-quality enterprise communications.
How is the PVDM4-32 managed within the Cisco IOS environment? +
Management is performed through the standard Cisco IOS XE command-line interface, providing granular control over DSP allocation and voice resource monitoring. Network administrators can easily query the status of the module, monitor channel utilization, and configure voice service settings, allowing for seamless integration into existing management workflows and automated network monitoring systems.
Can I request a bulk quote for multiple PVDM4-32 modules from BuyRouterSwitch.com? +
Absolutely. If you are planning a large-scale infrastructure refresh or a multi-site rollout, our team at BuyRouterSwitch.com is ready to assist. Simply contact our sales department with your quantity requirements, and we will provide a competitive bulk quote tailored to your project’s needs, ensuring you receive the best possible pricing for your enterprise hardware procurement.
Why should I purchase my Cisco hardware from BuyRouterSwitch.com? +
BuyRouterSwitch.com is a trusted source for authentic enterprise networking gear. We pride ourselves on offering a streamlined procurement process, ensuring that your critical infrastructure components reach you efficiently. By choosing us, you benefit from our deep product knowledge and commitment to providing genuine Cisco equipment, helping you maintain a secure and reliable network architecture for your organization.
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