Модуль Cisco PVDM4-32
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Описание
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.
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 4000 Series ISRs contain built-in, nonconfigurable digital signal processors (DSPs) and do not require any additional PVDMs for voice packetization.
Quick Specs
Figure 1 shows the appearance of PVDM4-32.
Table 1 shows the Quick Specs.
| Product Code | PVDM4-32 |
| Slot | On-board motherboard or T1/E1 module slot |
| Description | 32-channel high-density voice DSP module |
| Low Complexity | 32 |
| Medium Complexity | 24 |
| High Complexity | 16 |
Compare to Similar Items
Table 2 shows the comparison of PVDM4-64, PVDM4-32 and PVDM4-128.
| Product Code | PVDM4-32 | ||
| Slot | On-board motherboard or T1/E1 module slot | On-board motherboard or T1/E1 module slot | On-board motherboard or T1/E1 module slot |
| Description | 64-channel high-density voice DSP module | 32-channel high-density voice DSP module | 128-channel high-density voice DSP module |
| Low Complexity | 64 | 32 | 128 |
| Medium Complexity | 48 | 24 | 96 |
| High Complexity | 32 | 16 | 64 |
Solution
How to use this product to build Network for Small Business (Requires Router & Voice Module)?
See here: SMB Network Options
Do you have any question about the PVDM4-32?
or sales@router-switch.com.
подбор оборудования
до 90 дней
