Cisco PVDM4-64 64-Channel Voice DSP Module
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| Brand | Cisco |
| Product type | Voice network module |
| Compatible products | Cisco 4331, Cisco 4351, Cisco 4451 |
| Width | 51 mm |
| Depth | 67 mm |
| Height | 17 mm |
| Weight | 36 g |
| Operating temperature (T-T) | 0 – 50 °C |
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£268.75£322.50 Ex VatInc Vat
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| Brand | Cisco |
| Product type | Voice network module |
| Compatible products | Cisco 4331, Cisco 4351, Cisco 4451 |
| Width | 51 mm |
| Depth | 67 mm |
| Height | 17 mm |
| Weight | 36 g |
| Operating temperature (T-T) | 0 – 50 °C |
£268.75£322.50 Ex VatInc Vat
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Description
Cisco PVDM4-64 64-Channel Voice DSP Module
The Cisco® Packet Voice Digital Signal Processor Modules (PVDMs) enable 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.
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 4000 Series ISRs contain built-in, nonconfigurable digital signal processors (DSPs) and do not require any additional PVDMs for voice packetization.
Technical Table
| Brand | Cisco |
| Product type | Voice network module |
| Compatible products | Cisco 4331, Cisco 4351, Cisco 4451 |
| Width | 51 mm |
| Depth | 67 mm |
| Height | 17 mm |
| Weight | 36 g |
| Operating temperature (T-T) | 0 – 50 °C |
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