Cisco PVDM3 PVDM3-32= Data Sheet
Product codes
PVDM3-32=
Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Wide Range of CODEC Support
The PVDM3 modules support a wide range of codecs of different complexities. They support all codecs that are
supported by the PVDM2 modules. Table 1 lists the codecs supported on the PVDM3 modules.
Table 1.
Codec Support on the PVDM3 Modules
Name
Low -Complexity Codecs
Medium-Complexity Codecs
High-Complexity Codecs
PVDM3 module
G.711, ClearChannel, and Fax/Modem
Passthrough
Passthrough
G.729a, G.729ab, G.726, G.722,
and Fax Relay
and Fax Relay
G.723.1, G.728, G.729, G.729b,
Internet Low Bitrate Codec
(iLBC), and Modem Relay
Internet Low Bitrate Codec
(iLBC), and Modem Relay
High Density and Flexibility
The PVDM3 module portfolio has up to 4 times higher density than those in the PVDM2 portfolio. In addition, the
PVDM3 modules provide better density for medium- and high-complexity codecs than their equivalent PVDM2 peers.
For example, the number of supported medium-complexity codecs on a PVDM3-64 is 42, versus 32 on a PVDM2-64.
Refer to Table 2 for more details about channel density for each PVDM3 module.
High-end PVDM3 modules such as the PVDM3-192 and PVDM3-256 enable scalable rich-media applications with
improved user experience and quality. A PVDM3-256 can support up to 60 secure iLBC TDM-IP voice sessions, and
up to 30 eight-party conferences with the high-fidelity wideband codec G.722.
Table 2.
Channel Density of PVDM3 Modules
Name
Description
Maximum Number
of Channels in Low-
Complexity Codecs
of Channels in Low-
Complexity Codecs
Maximum Number of
Channels in Medium-
Complexity Codecs
Channels in Medium-
Complexity Codecs
Maximum Number of
Channels in High-
Complexity Codecs
Channels in High-
Complexity Codecs
PVDM3-16
16-channel high-density voice and video DSP module
16
12
10
PVDM3-32
32-channel high-density voice and video DSP module
32
21
14
PVDM3-64
64-channel high-density voice and video DSP module
64
42
28
PVDM3-128
128-channel high-density voice and video DSP module
128
96
60
PVDM3-192
192-channel high-density voice and video DSP module
192
138
88
PVDM3-256
256-channel high-density voice and video DSP module
256
192
120
Conferencing, Transcoding, and Transrating Services
The PVDM3 modules support digital voice connections, analog voice connections, conferencing, and universal
transcoding services. The same DSPs on the PVDM3 modules can now support all the services with a single DSP
image. In addition, the PVDM3 supports a higher number of conference sessions and a higher number of
participants per conference than the PVDM2. The PVDM3-256 can support up to 6 conferences with 64 participants
in each conference and up to 66 conferences with 8 participants in each conference. Please refer to the
PVDM3
Q&A
for more information about the number of supported sessions.
In conjunction with Cisco IOS
®
Software, the PVDM3 modules support universal transcoding and the same codec
repacketization as the PVDM2 modules. Universal transcoding allows transcoding from any supported codec to any
other supported codec. The PVDM3 modules offer improved universal transcoding session capacity over the PVDM2
modules. Please refer to the
PVDM3 Q&A
for more details about the number of supported sessions for each codec
on each PVDM3 module.
The PVDM3 modules support transrating, where repacketization of the same codec is used to connect dissimilar
networks that have different codec packetization periods.