Cisco NIM-PVDM-64 Full Official Technical Specification Document

1. Product Overview

Official Full Designation

Core Definition

SKU Naming Breakdown

1. NIM: Network Interface Module, single-wide expansion form factor for Cisco ISR 4000 and Catalyst 8200/8300 edge routers
2. PVDM: Packet Voice Digital Signal Processor, dedicated hardware DSP media processing architecture (4th generation PVDM4)
3. 64: Maximum 64 concurrent active voice/media DSP channels at G.711 codec density
4. =: Standard spare part suffix for brand-new standalone replacement kits (NIM-PVDM-64=)
5. -RF: Cisco Refresh certified refurbished spare SKU variant (NIM-PVDM-64-RF)

Product Lifecycle Notice

• Official Global Release Year: 2018
• End-of-Sale (EoS) Status: Discontinued; Cisco permanently ceased production of brand-new NIM-PVDM-64 hardware units
• Direct Upgrade Replacement Models: NIM-PVDM-128 (128-channel), NIM-PVDM-256 (256-channel) high-density DSP NIM modules; SM-X-PVDM series DSP modules for high-capacity ISR 4000 unified communications gateways
• Minimum Supported IOS XE Software Version: Cisco IOS XE Release 17.5 or later for Catalyst 8200/8300; IOS XE 3.17S minimum for ISR 4461 platforms
• Software Maintenance Status: Only critical security vulnerability patches are released for customers holding active Cisco DNA Advantage or SMARTnet service contracts; no new voice media feature enhancements will be developed
• Legacy Status: End-of-sale legacy hardware; certified refurbished spare modules, validated IOS XE firmware images and 24×7 Cisco TAC engineering technical support remain available through authorized Cisco distribution partners

Supported Router Platform Compatibility

1. Cisco ISR 4400 Series: ISR4461 only
2. Cisco Catalyst 8200 Series Edge Routers: C8200L-1N-4T
3. Cisco Catalyst 8300 Series Edge Routers: C8300-1N1S-6T

Deployment Restrictions

1. OIR operational requirement: Full OIR hot-swap functionality requires the minimum specified IOS XE release; older software versions require a full chassis power cycle for module installation or replacement.
2. Platform hardware limitation: This module cannot be installed on ISR 4321/4331/4351 routers, which lack the required backplane bandwidth and firmware support for high-density NIM-PVDM DSP processing.
3. Unified Communications license dependency: Voice media transcoding, conferencing and SRTP encryption features require the Cisco Unified Communications RTU license or DNA Advantage subscription for Catalyst edge routers.
4. Channel density dynamic allocation: The total 64 DSP channels are dynamically shared across all media services (transcoding, conferencing, fax). Complex high-bitrate codecs consume more DSP resources and reduce the maximum concurrent session count accordingly.
5. Backplane bandwidth sharing: Multiple NIM expansion modules installed in the same router chassis share the internal Multigigabit Fabric bus; simultaneous high-density voice DSP processing plus high-speed WAN/LAN traffic may introduce minor latency under extreme concurrent load.

Standard Factory Complete Bundle Contents

1. NIM-PVDM-64 64-channel PVDM4 DSP media processing NIM expansion card with front-panel global module ENABLE status LED indicator
2. Anti-static ESD handling storage bag and protective foam packaging
3. Quick-start hardware installation guide covering ESD static protection protocols, NIM slot OIR insertion/removal procedures, IOS XE DSP resource pool configuration, codec density planning, SRST/CUBE/transcoding/conferencing feature setup command examples
4. Global regulatory compliance, safety, and electromagnetic interference (EMI) certification documentation packet

Core Integrated Functional Capabilities

1. 64-Channel Dedicated PVDM4 DSP Hardware Offload: High-performance TMS320C64x+ DSP cores deliver a total of 64 concurrent voice/media processing channels at standard G.711 codec density. DSP resources are dynamically allocated across transcoding, conferencing, fax relay and secure media encryption workloads, eliminating host router CPU bottlenecks during peak VoIP call volumes.
2. Full Multi-Codec Hardware Transcoding Support: Native hardware acceleration for all mainstream enterprise voice codecs including G.711 a/μ-law, G.729AB, G.722 wideband, iLBC, Opus. Dynamic transcoding between disparate codec endpoints enables seamless interoperability between PSTN TDM trunks, on-prem CUCM IP phones, Webex cloud calling clients and remote SRST branch endpoints. Channel capacity scales with codec complexity: up to 64 G.711 sessions, up to 64 G.729AB sessions, up to 32 G.722 wideband sessions per module.
3. Hardware-Accelerated Multi-Party Meet-Me Conferencing: Dedicated DSP-based conference bridge functionality supporting multiple concurrent meet-me conference sessions with integrated acoustic echo cancellation, noise suppression and automatic gain control (AGC). Eliminates reliance on external conference servers for small-to-medium branch office collaborative voice meetings.
4. Comprehensive Voice Quality Enhancement Media Features: Hardware-enabled acoustic echo cancellation (AEC) supporting up to 128ms echo tail length for long-distance PSTN trunk deployments, background noise suppression, voice activity detection (VAD) with comfort noise generation (CNG), adaptive jitter buffers configurable from 5ms to 200ms to mitigate packet delay variation over SD-WAN and internet transport links.
5. Secure SRTP Media Encryption Hardware Acceleration: Integrated AES-256 cryptographic acceleration for Secure Real-Time Transport Protocol (SRTP) voice media encryption, protecting VoIP call audio streams from interception and tampering over public WAN/internet transport. Compliant with TLS 1.2 media signaling security standards for unified communications deployments.
6. T.38 Fax Over IP (FoIP) Relay with ECM Error Correction: Dedicated DSP processing for T.38 FoIP real-time fax relay, supporting error correction mode (ECM) to maintain reliable fax transmission between legacy analog fax machines connected to TDM PSTN trunks and IP-based remote fax servers/cloud fax services.
7. Unified IOS XE Single-Pane CLI Media Resource Management: All DSP resource pool allocation, codec selection, transcoding policy, conference bridge configuration, SRTP security and FoIP relay settings are managed directly through the host router’s native IOS XE command-line interface. Network administrators can monitor real-time DSP channel utilization, active call sessions, codec resource consumption and media error statistics alongside WAN/LAN interface metrics within a single consistent management environment.
8. OIR Hot-Swap Maintenance Support: Compliant with Cisco Online Insertion and Removal specifications, enabling field technicians to replace or upgrade the NIM-PVDM-64 DSP module without powering down the entire ISR/Catalyst router chassis, minimizing enterprise unified communications VoIP/PSTN voice service outage windows during hardware failure replacement or voice capacity expansion maintenance operations.
9. Comprehensive Media Diagnostic & Real-Time Monitoring Toolset: Built-in IOS XE diagnostic suite for voice media troubleshooting: real-time DSP channel utilization reporting, active call session tracking, codec resource consumption statistics, media packet loss/jitter measurement, fax relay transmission error logging, SRTP encryption status verification and conference bridge participant monitoring.
10. SNMP MIB Remote Network Monitoring Support: Implements standard Cisco PVDM DSP media processing SNMP MIBs for remote network monitoring of NIM module hardware operational status, total/active DSP channel count, real-time media processing resource utilization, codec session statistics, media transmission error counters and hardware fault alarm reporting, with SNMP trap generation triggered for critical DSP resource exhaustion and module hardware fault conditions.

2. Hardware & Performance Specifications

Core DSP Media Processing Capacity Specifications

DSP Architecture & Channel Density

• DSP Core Type: Texas Instruments TMS320C64x+ fourth-generation PVDM4 DSP cores
• Total Maximum DSP Channels (G.711 / G.729AB): 64 concurrent active sessions
• Wideband G.722 Maximum Sessions: 32 concurrent active sessions
• Dynamic Resource Allocation: Shared DSP pool for transcoding, conferencing, FoIP fax relay, SRTP encryption and voice quality processing

Supported Voice & Fax Codecs

• Narrowband Voice: G.711 a-law / μ-law, G.729AB, iLBC
• Wideband Voice: G.722, Opus
• Fax Relay Standard: T.38 FoIP with ECM error correction

Voice Media Enhancement Parameters

• Acoustic Echo Cancellation (AEC) Tail Length: Up to 128ms
• Adaptive Jitter Buffer Range: Configurable 5ms – 200ms
• Integrated Features: Noise suppression, VAD voice activity detection, comfort noise generation (CNG), automatic gain control (AGC)

Secure Media Encryption

• Encryption Standard: AES-256 hardware acceleration for SRTP media streams
• Signaling Security: TLS 1.2 compliant

Front Panel LED Indicator Definitions

1. EN LED (Global Module Hardware & DSP Pool Status)
   • Off: No power supplied to the NIM-PVDM-64 module, improperly seated module or critical DSP hardware failure rendering all media processing functions offline
   • Solid Green: NIM module powered, detected and fully operational; all DSP cores initialized and the 64-channel media resource pool available for unified communications workloads
   • Blinking Green: Module undergoing IOS XE DSP hardware initialization during router boot sequence
   • Solid Amber: NIM DSP hardware fault detected, or DSP resource pool near full exhaustion threshold alarm triggered

Electrical & Thermal Specifications

Power Consumption

• Typical operating power draw under medium mixed transcoding/conferencing voice load: ~12 Watts typical total module power dissipation
• Maximum full-load power consumption with all 64 DSP channels active at peak media processing load: ≤15 Watts maximum full-load thermal dissipation
• Power Delivery: Powered exclusively through the ISR 4461 / Catalyst 8200/8300 router chassis NIM slot internal backplane bus; no external power supply connectors mounted on the NIM module hardware

Thermal & Environmental Operating Parameters

• Certified Continuous Operating Temperature Range: 0°C to 40°C (32°F to 104°F) standard enterprise datacenter equipment room environment
• Extended Short-Term Operating Temperature Range: -5°C to 70°C (23°F to 158°F) commercial wide-temperature operating range
• Non-operating Storage Temperature Range: -40°C to 70°C (-40°F to 158°F)
• Operating Relative Humidity: 10% to 85% RH, non-condensing operating environment
• Storage Relative Humidity: 5% to 95% RH, non-condensing non-operating storage
• Operating Altitude: Certified operational range -150 m to 2,000 m (-500 ft to 6,500 ft); extended validated range up to 3,000 m (10,000 ft)
• Cooling Design: Fully passive thermal dissipation architecture with integrated aluminum heatsink, no onboard rotating cooling fans; cooling airflow supplied by the host router’s internal chassis fan assembly
• Airflow Direction: Horizontal chassis airflow passing over the NIM module PCB and integrated heatsink for continuous thermal dissipation under full 64-channel DSP peak media processing load

Physical Form Factor & Weight

• Form Factor: Standard single-wide NIM network interface module expansion card form factor, designed exclusively for NIM dedicated expansion slots of Cisco ISR4461 and Catalyst 8200/8300 Series multiservice secure edge routers
• Bare NIM Module Net Weight (without accessories, cables and packaging): Approximately 260 grams (0.26 kg)
• Physical Dimensions (H × W × D): 32 × 89 × 184 mm (1.25 × 3.50 × 7.24 inches)

3. Regulatory & Compliance Certifications

1. Safety Standards: UL 60950-1, CSA C22.2 No. 60950-1, EN 60950-1, IEC 60950-1, GB 4943 Chinese national safety standard
2. EMC & EMI Standards: FCC CFR Title 47 Part 15 Class A, VCCI Class A ITE, EN55022 Class A, CISPR 22 Class A, ICES-003 Class A, CISPR 24, EN 61000 series electromagnetic immunity standards
3. Voice Media & Telephony Compliance: ITU-T G.711, G.729, G.722, T.38 FoIP, SRTP RFC secure voice media specifications
4. Environmental Directive: EU RoHS hazardous substance restriction compliance, WEEE electronic waste recycling directive compliant

4. Core Deployment Advantages

1. Dedicated 64-Channel DSP Hardware Offload Eliminates Router CPU Bottlenecks for Unified Communications: The NIM-PVDM-64 provides a fully independent dedicated DSP resource pool of 64 voice channels, removing all CPU-intensive voice transcoding, conferencing, echo cancellation and secure SRTP media processing workloads from the host router’s main control and forwarding plane CPU. This preserves critical router CPU capacity for core enterprise workloads including dynamic IP routing, zone-based firewall inspection, NAT translation, IPSec/SD-WAN VPN encryption and ACL security filtering, preventing voice quality degradation, call dropouts and media latency spikes during peak concurrent VoIP and WAN traffic loads for branch office unified communications deployments.
2. Flexible Dynamic Shared DSP Resource Pool Optimizes Voice Channel Utilization: The module’s 64 DSP channels operate as a single dynamically shared resource pool that automatically allocates processing resources across all active media services simultaneously – codec transcoding, multi-party hardware conferencing, T.38 fax relay and SRTP media encryption. Network administrators no longer need to statically partition DSP channels for individual UC functions, maximizing overall DSP resource utilization and reducing the total number of DSP modules required to support branch office voice call volumes, lowering enterprise hardware capital expenditure for distributed multi-branch UC networks.
3. Comprehensive Hardware-Accelerated Unified Communications Media Feature Suite Meets Enterprise VoIP Deployment Requirements: This PVDM4 DSP module delivers the complete suite of enterprise-grade voice media processing functions fully implemented in dedicated hardware acceleration, eliminating reliance on software-based media processing that suffers from variable latency and poor voice quality under load. Native support for multi-codec transcoding enables seamless interoperability between on-premises CUCM IP phones, legacy TDM PSTN trunk telephony, remote SRST branch endpoints and cloud-hosted Webex Calling clients; integrated hardware conference bridges eliminate costly external third-party conference servers for small-to-medium branch collaborative voice meetings; built-in AEC echo cancellation, noise suppression and adaptive jitter buffering ensure consistent high-fidelity voice quality over latency-variable SD-WAN and public internet transport links, while AES-256 SRTP hardware encryption secures all VoIP media streams against unauthorized interception for regulated industry deployments (government, financial services, healthcare).
4. OIR Hot-Swap Support Minimizes Business-Critical VoIP/PSTN Voice Service Maintenance Downtime: Native Online Insertion and Removal hot-swap functionality allows field technicians to replace or upgrade the NIM-PVDM-64 DSP media processing module without powering down the entire ISR/Catalyst edge router chassis. This eliminates extended branch office voice service outages required for full chassis power cycles during DSP module hardware failure replacement or unified communications voice capacity expansion maintenance operations, drastically improving availability for mission-critical enterprise branch VoIP, PSTN trunk telephony, contact center and collaborative conferencing workloads.
5. Single-Wide NIM Form Factor Maximizes Chassis Expansion Slot Efficiency for Converged Branch Routers: The NIM-PVDM-64 fits within a standard single-wide NIM expansion slot, delivering high-density 64-channel DSP voice media processing capacity without consuming multiple router chassis expansion slots. This design preserves remaining NIM expansion slots for other critical branch edge services including T1/E1 MFT voice trunk modules, Gigabit/10G WAN interface modules, LAN EtherSwitch modules and LTE wireless WAN NIMs, enabling fully converged single-chassis branch edge router deployments that integrate routing, SD-WAN, security, LAN switching and full unified communications voice media processing, reducing total branch IT rack space footprint and auxiliary hardware capital expenditure for distributed enterprise networks.
6. Passive Fanless Heatsink Thermal Architecture Delivers Superior Long-Term Hardware Reliability and Low Lifecycle Maintenance Costs: The NIM-PVDM-64 module utilizes a fully passive thermal dissipation design with a solid integrated aluminum heatsink and contains no onboard rotating cooling fans. This eliminates all mechanical hardware failure risks associated with fan motor wear, dust accumulation, fan power supply faults and airflow blockages, enabling stable 24/7 continuous unattended operation in remote unmanned enterprise branch datacenter equipment closets, retail store IT rooms, industrial field sites and off-grid regional branch office locations with minimal long-term on-site maintenance requirements. Low idle and peak full-load power consumption reduces overall router chassis energy draw and enterprise branch site cooling operational energy costs over multi-year hardware service lifecycles, delivering significant total cost of ownership (TCO) savings for large-scale distributed multi-branch enterprise unified communications deployments.
7. Unified IOS XE Single-Pane CLI Media Resource Management Simplifies Branch UC Operations and Troubleshooting: All DSP resource pool configuration, codec selection, transcoding policy, meet-me conference bridge provisioning, SRTP secure media encryption rules, T.38 fax relay parameters and media QoS settings are fully managed and monitored through the host ISR/Catalyst router’s native IOS XE command-line interface. Network administrators can view real-time DSP channel utilization metrics, active VoIP call session counts, codec resource consumption statistics, media packet loss/jitter measurements and DSP hardware fault alarms alongside all other router WAN/LAN/TDM trunk interface performance data within a single consistent management environment. This eliminates the requirement for separate standalone media server management software or dedicated out-of-band monitoring infrastructure for branch voice processing resources, drastically reducing network administrator training overhead and streamlining unified communications change management, routine performance monitoring and critical VoIP service troubleshooting workflows for distributed enterprise branch edge routers.

Supplementary Product Specification Notes

UNSPSC Classification Code

K9 Security Compliance Note

Factory Hardware Warranty Terms