- Cod produs: PVDM4-64U256
- Producător: Cisco
- Aparut din: 20.04.2015
- Garanție: Maxim 5 ani
Cisco PVDM4-64U256
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Descriere furnizor
PVDM4 64-CHANNEL TO 256/CHANNEL FACTORY UPGRADE
Descriere Cisco PVDM4-64U256
Cisco PVDM4-64U256. Lărgime: 51 milimetri, Adâncime: 67 milimetri, Înălţime: 17 milimetri
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.
Specificații tehnice Cisco PVDM4-64U256
| Lărgime | 51 milimetri |
| Adâncime | 67 milimetri |
| Înălţime | 17 milimetri |
| Greutate | 36 g |
| Interval de temperatură de funcţionare (T-T) | 0 - 50 °C |
| Număr de canale de voce sprijinite (max) | 256 |
| Compatibilitate | Cisco 4331, Cisco 4351, Cisco 4451 |
* Specificațiile tehnice si descrierile pot fi modificate fără preaviz de către producător.
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