Cisco AS5X-PVDM2-64
AS5000 64-Channel Packet Voice/Fax DSP Module
Product Highlights
Scaling voice and fax capacity on a Cisco AS5000-series universal gateway shouldn't mean a forklift upgrade. The Cisco AS5X-PVDM2-64 is a 64-channel high-density packet voice/fax digital signal processor (DSP) module purpose-built for the Cisco AS5400XM and AS5350XM universal gateways.
Powered by four Texas Instruments TNETV2510GGW DSPs clocked at 200 MHz, the AS5X-PVDM2-64 delivers up to 64 simultaneous G.711 channels, 32 medium-complexity codec channels, or 24 high-complexity codec channels per module. It connects to the Cisco AS5000XM Feature Card (AS5X-FC) via an 80-pin SIMM slot and is fully field-insertable and removable, enabling non-disruptive capacity expansion.
Up to six AS5X-PVDM2-64 modules can populate a single AS5X-FC card, scaling a single feature card to 384 voice and fax ports. The module performs compression, voice activity detection (VAD), jitter management, and echo cancellation on-board, offloading the gateway's main processor and ensuring consistent call quality across toll-bypass, call-center, IVR, and prepaid calling-card deployments.
Note: The Cisco AS5400XM platform has reached End-of-Life (EOL). This module is available as a replacement spare for existing installations.
Features & Benefits
High-Density Voice Channel Processing
Each AS5X-PVDM2-64 module supports up to 64 G.711 channels, 32 medium-complexity channels, or 24 high-complexity channels, giving network operators the flexibility to match codec selection to deployment requirements. Whether you need uncompressed G.711 for call-center clarity or bandwidth-efficient G.729a for toll bypass, a single module adapts on a call-by-call basis.
Scalable Modular Architecture
The AS5X-PVDM2-64 plugs into the Cisco AS5000XM Feature Card (AS5X-FC) through an 80-pin SIMM slot. Each feature card accommodates up to six PVDM2 modules, scaling from 64 to 384 voice/fax ports per card. This modular approach lets you grow capacity incrementally without replacing the entire feature card or chassis.
On-Board DSP Intelligence
Four Texas Instruments TNETV2510GGW DSPs running at 200 MHz with 128 Mb SDRAM each handle compression, echo cancellation, voice activity detection (VAD), and jitter management locally on the module. Offloading these tasks from the gateway CPU preserves headroom for routing and signaling, improving overall system stability under heavy call loads.
Broad Codec & Fax Support
The module supports a comprehensive codec portfolio including G.711, G.729a, G.729ab, G.726, G.722, G.728, and G.723.1 for voice, plus T.38 and fax relay for reliable fax-over-IP. This breadth ensures interoperability across diverse carrier and enterprise VoIP environments.
Field-Serviceable Design
The AS5X-PVDM2-64 is field-insertable and removable, allowing technicians to add or replace DSP capacity without powering down the entire gateway chassis. This simplifies maintenance windows and reduces service disruption during capacity upgrades.
Deployment Scenarios
Service Provider Voice Gateway
Carriers and managed-service providers running Cisco AS5400XM gateways can populate multiple AS5X-PVDM2-64 modules to deliver high-density toll-bypass and VoIP termination services. The flexible codec allocation allows operators to balance call quality against bandwidth on a per-call basis.
Enterprise Call Center / IVR Platform
Large call centers leveraging the AS5400XM as a voice gateway benefit from the module's 64-channel G.711 capacity, which provides the uncompressed audio quality required for interactive voice response (IVR) and automated attendant applications.
Prepaid Calling Card & Toll-Bypass Services
Prepaid calling-card platforms require dense, cost-effective voice processing. Stacking up to six AS5X-PVDM2-64 modules on a single AS5X-FC card delivers up to 384 channels, maximizing revenue-generating port density per chassis slot.
Replacement Spare for EOL Gateways
Organizations maintaining existing AS5400XM or AS5350XM deployments past the platform's End-of-Life date can source the AS5X-PVDM2-64 as a direct replacement spare to restore or expand DSP capacity without migrating to a new platform prematurely.
General
Performance
Codec Support
Features
Interface & Installation
Compatibility
Compatibility Notes
Compatible Platforms
- Cisco AS5400XM Universal Gateway (EOL)
- Cisco AS5350XM Universal Gateway (EOL)
Required Carrier Card
- AS5X-FC — Cisco AS5000XM Feature Card (provides six 80-pin SIMM slots for PVDM2 modules)
Important Notes
- A mix of DSP feature card types is not supported within a single AS5400XM chassis.
- Contact your Cisco sales channel or reseller for the appropriate Cisco IOS software release required to support this module.
- The AS5400XM platform has reached End-of-Life. Cisco no longer sells or provides new service contracts for this platform.
Downloads & Resources
Frequently Asked Questions
| Part Number | Product | Key Difference |
|---|---|---|
| PVDM2-64 | Cisco PVDM2-64 (ISR variant) | Same 64-channel PVDM2 DSP technology but designed for Cisco ISR routers (2800/3800 series), not AS5000 gateways |
| AS5X-FC | Cisco AS5000XM Feature Card | Required carrier card that hosts up to 6 AS5X-PVDM2-64 modules — purchase separately if not already installed |
| AS5XM-VUFC-108NP | Cisco AS5XM Universal Port Feature Card (108-port) | Universal port DSP card supporting voice, fax, and remote-access services — different card architecture, not PVDM2-based |
| AS5XM-VUFC-60NP | Cisco AS5XM Universal Port Feature Card (60-port) | Lower-density universal port DSP card for voice, fax, and remote-access — alternative to PVDM2-based feature cards |