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PVDM2-48
48-CHANNEL PACKET VOICE/FAX DSP MODULE
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PVDM2-48 is a high-performance Ethernet module designed for modern enterprise network infrastructures. It supports data rates up to 10Gbps through SFP+ connectors, ensuring optimal connectivity when paired with routers, switches, and servers. The module is engineered with TCP/IP protocol support and a PCIe form factor that allows for straightforward installation into existing systems.
Optimized for data center expansion and network interface upgrades, the PVDM2-48 delivers reliable and efficient performance. It features advanced functionalities such as auto-negotiation, wake-on-LAN, jumbo frame capability, and QoS, making it ideal for high-speed networking environments that demand consistent communication and low latency.
PVDM2-48 price is $1,089.00, a 54.6% saving from the Cisco list price of $2,400.00. PVDM2-48 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for PVDM2-48 for additional pricing. Browse the full Pvdm Voice/Fax Modules series or explore all Cisco products.
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| PVDM2-48 |  PVDM3-192 |  PVDM4-128 |  PVDM2-8 |  PVDM2-36DM | |
|---|---|---|---|---|---|
| Product Type | Network Module | Voice Processing Module | Network Card | Network Module / Network Card | Network Card |
| Module Type | Ethernet | DSP | Ethernet | WAN | Ethernet |
| Data Rate | 10G | N/A | 40G | 1Gbps | 10G |
| Connector Type | SFP+ | N/A | SFP+ | RJ-45 | SFP+ |
| Supported Protocols | TCP/IP | N/A | TCP/IP / iSCSI / Fibre Channel | TCP/IP | TCP/IP, iSCSI |
| Form Factor | PCIe | Modular | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 5V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Arista, Dell, HP | Cisco Integrated Services Routers | Cisco / Juniper / Arista / Dell / HP | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Arista, Dell, HP |
| Max Speed | 10Gbps | N/A | 40Gbps | 1Gbps | 10Gbps |
| Supported Features | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Voice Transcoding, Conferencing, Signaling Conversion | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS |
| Power Consumption | 20W | 8W | 35W | 10W | 15W |
| Interface Ports | Ethernet | N/A | SFP+ | Ethernet | SFP+ |
| Expansion Slots | N/A | N/A | N/A | N/A | N/A |
| Product Name | PVDM2-48 Ethernet Module | PVDM3-192 | PVDM4-128 High Performance Network Card | PVDM2-8 WAN Module | PVDM2-36DM High-Speed Ethernet Module |
| Height | 1.0 inches | N/A | 1.5 inches | 1.5 inches | 0.5 inches |
| Width | 8.6 inches | N/A | 3.0 inches | 3.5 inches | 3.5 inches |
| Depth | 1.5 inches | N/A | 9.5 inches | 0.5 inches | 4.0 inches |
| Weight | 1.2 lbs | N/A | 1.2 lbs | 0.4 lbs | 0.5 lbs |
The 48-channel packet voice/fax DSP module has been a fantastic solution for us. It delivers high-quality voice processing and ensures smooth communication across our network.
The PVDM2-48 DSP module handles high volumes of voice traffic efficiently. It's fast, reliable, and has significantly enhanced our network's voice processing capabilities.
This module provides solid performance for high-volume networks. The PVDM2-48 handles voice and fax traffic seamlessly, ensuring clear communication across our system.
The PVDM2-48 module is reliable and handles large amounts of traffic without compromising performance. It's been essential for scaling our voice processing capabilities.
The PVDM2-48 has delivered great results. It's perfect for supporting high-demand voice and fax processing, ensuring smooth, efficient communication for our network.
The Cisco PVDM2-48 is a high-density digital signal processor module that delivers up to 48 simultaneous voice or fax channels on supported Cisco ISR routers.
The PVDM2-48 supports up to 48 G.711 voice channels or a configurable mix of compressed codecs based on DSP resource allocation.
It supports T.38 fax relay and G.711 transparent faxing to ensure reliable fax transmission over IP networks.
PVDM2-48 is compatible with Cisco 1900, 2900, 3900, 4000, and ASR 1000 Series routers that feature PVDM2 slots.
Power down the router, insert the PVDM2-48 into an available PVDM2 slot, secure the module with the retaining clip, and then power on the device.
Yes, you can mix PVDM2-48 with PVDM2-16 or PVDM2-32 modules in the same chassis provided slot capacity and IOS compatibility are met.
It provides advanced DSP features including echo cancellation, silence suppression, adaptive jitter buffering, and packet loss concealment.
Supported codecs include G.711, G.729a/ab, G.726, G.723, and iLBC for flexible bandwidth optimization.
No separate DSP license is required; all 48 channels activate automatically upon module installation.
The module consumes approximately 7.8 watts under normal voice channel utilization.
Cisco provides a limited lifetime warranty for the PVDM2-48 when purchased through an authorized reseller, covering hardware defects.
You can buy it via Cisco’s authorized channel partners, Cisco Online Store, or certified resellers worldwide.
Use Cisco IOS global configuration mode with ‘voice dsp’ commands to allocate and assign DSP channels to dial-peers or voice ports.
Yes, it supports Cisco Conference Bridge and transcoding functions within the limits of available DSP resources.
Verify module seating, power status, IOS compatibility, and run ‘show platform hardware dsp’ and ‘show voice dsp’ to diagnose issues.
By offloading codecs and echo cancellation to dedicated DSP hardware, it reduces router CPU load and ensures consistent call quality.