À propos du produit
The Cisco® Packet Voice Digital Signal Processor Modules (PVDMs) enable the Cisco Catalyst 8000 Edge Platforms Family and the Cisco 4000 Series Integrated Services Routers (ISRs) to provide rich-media capabilities such as high-density voice connectivity, conferencing, transcoding, media optimization, transrating, and secure voice for Cisco Unified Communications solutions. These new modules support unprecedented scale while allowing for a smaller solution footprint than ever before.
Features and benefits
The PVDMs support digital voice connections, conferencing, universal transcoding, and media optimization services:
- T1/E1 voice: One of the primary uses of PVDMs is to packetize digital voice into IP packets to enable Time-Division Multiplexing (TDM) digital voice applications.
- Conferencing: PVDM modules support ad hoc and meet-me conferencing with various codecs in conjunction with Cisco Unified Communications Manager and Cisco Unified Communications Manager Express.
- Universal transcoding: In conjunction with Cisco IOS® Software, the PVDMs support universal transcoding, which allows conversion from any supported codec to any other supported codec.
- Transrating: The PVDMs support transrating, in which the same codec is repacketized in order to connect dissimilar networks that have different codec packetization periods.
- Voice-quality management: The PVDMs perform compression, voice-activity detection, jitter management, and echo cancellation. The echo cancellation offered in the PVDMs has a tail length of 128 milliseconds and complies with ITU-T G.168.
- Energy savings: The motherboard PVDMs (PVDM4s) offer multiple power-saving modes, including a power-saver mode when the module is not in use. In power-saver mode, each PVDM4 can save up to 5 watts of power.
The analog voice modules (FXS, FXO, and E/M) and Basic Rate Interface (BRI) digital voice modules for the Catalyst 8000 and the 4000 Series ISRs contain built-in, nonconfigurable Digital Signal Processors (DSPs) and do not require any additional PVDMs for voice packetization.
Spécifications techniques
| Power Description | |
| Input Voltage | 12 V |
| Technical Information | |
| Application/Usage | Data Networking |
| Environmental Conditions | |
| Minimum Operating Temperature | 32°F (0°C) |
| Maximum Operating Temperature | 104°F (40°C) |
| Miscellaneous | |
| Compatibility | Cisco 4000 Series Integrated Services Routers |
| Environmentally Friendly | Yes |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Physical Characteristics | |
| Weight (Approximate) | 808 g |
| Form Factor | Plug-in Module |
| Height | 1.60" (40.64 mm) |
| Width | 8.50" (215.90 mm) |
| Depth | 8.10" (205.74 mm) |
| General Information | |
| Product Type | Voice DSP Module |
| Manufacturer Part Number | SMXPVDM2000 |
| Manufacturer Website Address | http://www.cisco.com |
| Manufacturer | Cisco Systems, Inc |
| Product Name | Voice DSP Module |
| Brand Name | Cisco |
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