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PVDM4-32 PVDM4-64 PVDM4-128 PVDM4-256 32-channel High-density Voice DSP Module, or Spare
PVDM4-32 Overview
The C isco Packet Voice Digital Signal Processor Modules (PVDMs) enable C isco 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 C isco Unified Communications solutions.These new modules support unprecedented scale while allowing for a smaller solution footprint than ever before.
Product Features
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 C isco Unified Communications Manager and C isco Unified Communications Manager Express.
Universal transcoding: In conjunction with C isco 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.
PVDM4-32 Specification
PVDM4 Specifications |
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Feature |
Motherboard PVDMs (PVDM4s) |
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Components |
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DSP |
Multicore DSP technology |
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Interface |
Integrated Services Card (ISC) slot on motherboard or T1/E1 NIM |
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Features |
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Operating temperature |
32° to 122°F (0° to 50°C) |
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Voltage |
3.3V |
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Current |
1.47A |
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Power |
4.85W |
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Weight |
0.08 lb (36 g) |
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Dimensions (H x W x D) |
0.67 x 2.50 x 2.62 in.(1.7 x 5.1 x 6.7 cm) |
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Regulatory and Compliance |
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Safety |
Complies with: IEC 60950 (worldwide) AS/NZS 60950-1 (Australia and New Zealand) CAN/CSA-C22.2 No.60950-1, 1st and 2nd Ed.Canada GB4943-95 (People's Republic of China) EN60950-1, 1st and 2nd Ed.(CENELEC; includes EU and EFTA) NOM-019-SCFI-1998 (Mexico) UL 60950-1, 1st and 2nd Ed.(United States) |
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Approval |
Platform dependent |
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Mean time between failures (MTBF) |
System dependent |
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EMC |
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Emissions |
CISPR22, Class B EN55022, Class B, CFR47, Part 15, Subpart B, Class B |
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Harmonics |
EN61000-3-2 |
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Flicker |
EN61000-3-3 |
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Immunity |
CISPR24 EN 55024 EN50082-1 |
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Electrostatic discharge (ESD) |
EN 61000-4-2 |
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RF fields |
EN 61000-4-3 |
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EFT |
EN 61000-4-4 |
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Surge |
EN 61000-4-5 |
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Conducted RF |
EN 61000-4-6 |
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Power-frequency magnetic fields |
EN 6100-4-8 |
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Voltage dips, sags, and interruptions |
EN 61000-4-11 |
