Cisco PVDM3-128 Voice and Video DSP Module

Usage Area

The Cisco PVDM3-128 is a high-density voice DSP module designed for deployment in enterprise local area network (LAN) infrastructures, specifically within Cisco Integrated Services Routers (ISRs) that support the PVDM3 slot. It is used to provide packet voice and fax processing capabilities, enabling voice-over-IP (VoIP) services, conferencing, and transcoding functions on supported router platforms. This module is suited for organizations requiring scalable voice channel capacity in their branch or campus network environments. It integrates directly into the router chassis to offload digital signal processing tasks from the main CPU.

Construction Features

• High-density 128-channel packet voice/fax DSP module for enhanced processing capacity.
• Designed for installation into the dedicated PVDM slot on compatible Cisco ISR platforms.
• Spare part (SPARE) configuration, supplied as a standalone replacement or upgrade unit.
• Compact module form factor that fits within the router's internal architecture.
• Utilizes Cisco PVDM3 series technology for efficient voice compression and fax relay.
• Built for seamless integration with Cisco 2900 and 3900 Series ISR voice-enabled systems.

Technical Parameters

• Model: PVDM3-128
• MPN: PVDM3-128
• Brand: Cisco
• Category: Local area networks (LAN)
• Channel capacity: 128 channels
• Module type: High-density voice DSP module
• Compatibility: Cisco PVDM3 slot on supported ISR platforms

Standards & Certification

The module is a genuine Cisco component, compliant with the manufacturer's specifications for voice processing hardware in enterprise networking equipment. It adheres to Cisco's internal quality and interoperability standards for use within its certified router platforms. No additional industry certifications are listed in the source documentation.