Cisco PVDM2-48 Cisco network interface module
Brand: Cisco | Category: Accessories & Components
SKU: CSC-PVDM2-48 | Part #: PVDM2-48 | MPN: PVDM2-48
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About the Cisco PVDM2-48 Cisco network interface module
The Cisco PVDM2-48 is a second-generation Packet Voice DSP Module designed to integrate directly into Cisco ISR (Integrated Services Router) platforms, delivering enterprise-grade voice processing capabilities at the hardware level. This daughter-card module installs into the PVDM2 slot found on compatible Cisco routers including the 2811, 2821, 2851, 3825, and 3845 models, enabling distributed voice gateway functionality without external power requirements. Network engineers and IT procurement teams seeking to expand voice capacity and reduce processor overhead will find this module essential for scaling voice infrastructure in branch office and remote site deployments.
The PVDM2-48 harnesses 48 dedicated DSP channels to handle voice encoding, decoding, transcoding, and media termination tasks independently of the router's main CPU. Support for multiple codecs—including G.711 (a-law and μ-law), G.726, G.728, G.729a, G.729ab, and G.723.1—ensures broad interoperability with legacy and modern VoIP systems. The module also provides hardware-based multiparty conferencing, T.38 fax relay, fax passthrough, and modem passthrough (V.90, V.34, and earlier standards) to support diverse communication requirements. Voice functionality requires Cisco IOS voice gateway or Unified CME feature set licensing. As genuine Cisco hardware, the PVDM2-48 qualifies for Cisco Technical Assistance Center support contracts, ensuring mission-critical deployments receive vendor-backed assistance.
Key Specifications
- Manufacturer: Cisco
- Part Number: PVDM2-48
- Module Type: Packet Voice DSP Module (PVDM2), 2nd generation
- DSP Channels: 48
- Form Factor: PVDM2 daughter-card module
- Compatible Platforms: Cisco 2811, 2821, 2851, 3825, 3845 ISR and other PVDM2-slot-equipped routers
- Supported Codecs: G.711 (a-law, μ-law), G.726, G.728, G.729a, G.729ab, G.723.1
- Hardware Functions: Voice encoding/decoding, transcoding, MTP, hardware conferencing
Contact Omnixon Global to request a quotation for the PVDM2-48 and explore volume licensing options tailored to your enterprise voice infrastructure requirements.
Technical Specifications
| Brand | Cisco |
| Category | Accessories & Components |
| SKU | CSC-PVDM2-48 |
| Part Number | PVDM2-48 |
| Condition | New |
| Manufacturer Part Number | PVDM2-48 |
| Module Type | Packet Voice DSP Module (PVDM2), 2nd generation |
| DSP Channels | 48 |
| Form Factor | PVDM2 daughter-card module |
| Slot Interface | PVDM2 slot (on-board ISR motherboard slot) |
| Compatible Platforms | Cisco 2811, 2821, 2851, 3825, 3845 ISR (and other PVDM2-slot-equipped Cisco routers) |
| Supported Codecs | G.711 (a-law, μ-law), G.726, G.728, G.729a, G.729ab, G.723.1 |
| Fax Support | T.38 fax relay, fax passthrough |
| Modem Support | Modem passthrough (V.90, V.34 and earlier) |
| Hardware Functions | Voice encoding/decoding, transcoding, MTP (Media Termination Point), hardware conferencing |
| Conferencing | Hardware-based multiparty conferencing via DSP resources |
| External Power Required | No (powered through PVDM2 slot) |
| IOS Feature Requirement | Cisco IOS voice gateway or Unified CME feature set required for voice functionality |
| Product Series | PVDM2 |
| Hardware Revision Compatibility | Compatible with PVDM2-slot ISR platforms; not interchangeable with PVDM (1st gen) or PVDM3 slots |
| TAC Support Eligibility | Yes — genuine Cisco hardware eligible for Cisco Technical Assistance Center support contracts |
Frequently Asked Questions about Cisco PVDM2-48 Cisco network interface module
What does the Cisco PVDM2-48 Cisco network interface module do?
The Cisco PVDM2-48 Cisco network interface module is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.