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  • 제품설명

    Cisco High-Density Packet Voice Digital Signal Processor Modules

    Model: PVDM2-ADPTR=
    NEW





  • Product Overview

    The Cisco® High-Density Packet Voice Digital Signal Processor (DSP) Module (PVDM2) enables Cisco Integrated Services Routers to provide high-density voice connectivity, conferencing, and transcoding capabilities in Cisco IP Communications solutions. Cisco Integrated Services Routers provide enterprises and service providers with a toll bypass solution by connecting their existing telephony equipment (such as private branch exchanges [PBXs], key systems, analog telephones, and fax machines) to a toll-free data network and eventually migrating customers to Cisco Unified Communication Architecture for Voice, Video and Integrated Data IP telephony solutions.
    The high-density packet voice DSP modules are available in five versions: PVDM2-8, PVDM2-16, PVDM2-32, PVDM2-48, and PVDM2-64 (Figure 1). Tables 1 and 2 show the number of voice channels and codecs that each PVDM2 module supports.
    Figure 1. PVDM2 Top and Bottom Views


    Top
    Bottom

    PVDM2-64



    PVDM2-48



    PVDM2-32



    PVDM2-8 and PVDM2-16





    Table 1. Channel Density of Each PVDM2 Module

    Name
    Description*
    Maximum Number of Channels in G.711
    Maximum Number of Channels in High-Complexity Codecs
    Maximum Number of Channels in Medium-Complexity Codecs

    PVDM2-8
    8-channel packet fax and voice DSP module
    8
    4
    4

    PVDM2-16
    16-channel packet fax and voice DSP module
    16
    6
    8

    PVDM2-32
    32-channel packet fax and voice DSP module
    32
    12
    16

    PVDM2-48
    48-channel packet fax and voice DSP module
    48
    18
    24

    PVDM2-64
    64-channel packet fax and voice DSP module
    64
    24
    32



    * The number of channels in PVDM2 product numbers and descriptions is the maximum channel density with the G.711 codec.
    Table 2. Codec Support on the PVDM2 Module

    Name
    High-Complexity Codecs
    Medium-Complexity Codecs

    PVDM2 Module
    G.723.1, G.728, G.729, G.729b, iLBC, and Modem Relay
    G.7112, g.729a, G.729ab, G.726, G.722, and Fax Relay



    * PVDM2 can support a higher density of G.711 calls than that of other medium-complexity codecs. See Table 1.
    PVDM2 connects to the host through 80-pin single inline memory module (SIMM) slots. The module is field insertable and removable. Figure 2 shows how PVDM2 is plugged into PVDM2 SIMM slots on the Cisco high-density digital voice network modules.
    Figure 2. PVDM2 SIMM Slots on the Cisco High-Density Digital Voice Network Modules


    Features and Benefits

    Investment Protection and Field-Upgradable Capability

    PVDM2 is used across a series of Cisco Integrated Services Routers and high-density voice network modules, allowing users to distribute or reuse DSP resources among the routers or network modules as needed. The field-upgradable capability enables users to easily scale their voice deployments.
    In addition, each DSP on the PVDM2 provides four times the processing power and more memory than the existing PVDM. The high performance of PVDM2 supports future growth.
    High Density and Flexibility

    PVDM2 provides high call density per DSP and flexibility of channel allocation. The maximized support of uncompressed G.711 voice calls optimizes DSP utilization for the solutions, mainly based on G.711 codecs such as IP telephony, in a LAN where the bandwidth consumed by uncompressed calls is not a concern.
    Conferencing and Transcoding Services

    With PVDM2, Cisco Integrated Services Routers and voice network modules provide both digital and analog voice connections and conferencing and transcoding services. In conjunction with host software, PVDM2 supports universal transcoding when needed. Universal transcoding allows transcoding from any supported codec to any other supported codec. As a general rule, the number of sessions needed for a universal transcoding channel is the sum of the session requirements for two separate voice channels, one running each of the configured codecs. For example, a channel running universal transcoding from a G.729a codec to iLBC would need the session capacity for a voice channel running the G.729a codec and MIPS (million instructions per second) for a voice channel running the iLBC codec.
    Improved Voice Quality

    PVDM2 performs compression, voice activity detection, jitter management, and echo cancellation functions to improve voice quality. The echo cancellation offered in PVDM2 has a tail length of 64 milliseconds (ms) and complies with International Telecommunication Union (ITU)-T G.168.
    Availability of Features

    Table 3 summarizes the availability of features.
    Table 3. Features Availability

    Name
    Platform Support
    Availability
    Release

    PVDM2-8, PVDM2-16, PVDM2-32, PVDM2-48, and PVDM2-64
    NM-HDV2, NM-HDV2-1T1/E1, and NM-HDV2-2T1/E1
    IP voice or IP plus above images
    Cisco IOS® Software Release 12.3(7)T

    PVDM2-8, PVDM2-16, PVDM2-32, PVDM2-48, and PVDM2-64
    Cisco 2801*, 2811, 2821, and 2851 Integrated Services Routers
    IP voice and above images
    Cisco IOS Software Release 12.3(8)T4

    PVDM2-8, PVDM2-16, PVDM2-32, PVDM2-48, and PVDM2-64
    EVM-HD-8FXS/DID, EM-HDA-8FXS, and EM-4BRI-NT/TE
    IP voice and above images
    Cisco IOS Software Release 12.3(8)T4

    PVDM2-8, PVDM2-16, PVDM2-32, PVDM2-48, and PVDM2-64
    Cisco 3825 and 3845 Integrated Services Routers
    IP voice and above images
    Cisco IOS Software Release 12.3(11)T

    PVDM2-8, PVDM2-16, PVDM2-32, PVDM2-48, and PVDM2-64
    Cisco 2901, 2911, 2921, 2951, 3925, 3945 Integrated Service Routers **
    Unified Communications License
    Cisco IOS® Software Release 15.0(1)M



    * The conferencing and transcoding feature on the Cisco 2801 will be available in a future Cisco IOS Software release.
    ** Onboard support for the PVDM2 modules in the 2911, 2921, 2951, 3925, and 3945 platforms will be via the PVDM adapter, PVDM2-ADPTR. Adapters are not required on the Cisco High-Density Digital Voice Network Modules.
    Product Specifications

    Table 4 presents product specifications.
    Table 4. Product Specifications

    Feature
    Specifications

    Components

    DSP
    • Texas Instruments TNETV2510GGW for PVDM2-16, PVDM2-32, PVDM2-48, and PVDM2-64
    • Texas Instruments TNETV2505GGW for PVDM2-8
    DSP CPU Clock
    • 200 MHz for TNETV2510GGW
    • 175MHz for TNETV2505GGW
    DSP External Memory
    128-megabit synchronous dynamic RAM for each DSP (for both TI 2510 and TI 2505)

    Interface
    80-pin SIMM interface

    Features

    Echo Cancellation
    Software echo cancellation compliant with ITU-I G.168, with 64-ms tail coverage

    Approvals and Compliance

    Safety
    • IEC 60950 (worldwide) and AS/NZS 3260 (Australia and New Zealand)
    • CAN/CSA-C22.2 No. 60950 (Canada) and GB4943-95 (People's Republic of China)
    • EN60950 (CENELEC; includes EU and EFTA)
    • SS337 (Singapore; PSB approval), NOM-019-SCFI-1998 (Mexico), and UL 60950 3rd edition (United States)
    Homologation
    Platform dependent

    Mean Time between Failure (MTBF)
    System dependent

    EMC

    CISPR22, Class B
    Emissions

    EN55022, Class B
    Emissions

    CFR47, Part 15, Subpart B, Class B
    Emissions

    EN61000-3-2
    Harmonics

    EN61000-3-3
    Flicker

    CISPR24
    Immunity

    EN 55024
    Immunity

    EN50082-1
    Immunity

    EN61000-3-2
    Harmonics

    EN 61000-3-3
    Flicker

    EN 61000-4-2
    Electrostatic discharge (ESD)

    EN 61000-4-3
    Radio frequency (RF) fields

    EN 61000-4-4
    EFT

    EN 61000-4-5
    Surge

    EN 61000-4-6
    Conducted RF

    EN 6100-4-8
    Power-frequency magnetic fields

    EN 61000-4-11
    Voltage dips, sags, and interruptions



    Ordering Information

    Table 5 presents ordering information.
    Table 5. Ordering Information

    Description
    Part Number

    8-Channel Packet Fax/Voice DSP Module, or spare
    PVDM2-8 or PVDM2-8=

    16-Channel Packet Fax/Voice DSP Module, or spare
    PVDM2-16 or PVDM2-16=

    32-Channel Packet Fax/Voice DSP Module, or spare
    PVDM2-32 or PVDM2-32=

    48-Channel Packet Fax/Voice DSP Module, or spare
    PVDM2-48 or PVDM2-48=

    64-Channel Packet Fax/Voice DSP Module, or spare
    PVDM2-64 or PVDM2-64=

    PVDM2 Adapter for PVDM Slot on Cisco 2900, 3900 Series ISR
    PVDM2-ADPTR or PVDM2-ADPTR=