Model: PVDM2-8 Router Voice DSP Module
Detail: 8-Channel Packet Voice/Fax DSP Module

Cisco PVDM2-8 Description

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 PVDM2-8 Features

·Can be configured for high-, medium- or flex complexity via software

·Flex complexity is the default configuration, and in this mode, the network module will dynamically negotiate the appropriate codec (medium or high) on a call-by-call basis

·High complexity codec support – G.723.1, G.728, G.729, G.729b, iLBC, and Modem Relay

·Medium complexity codec support – G.7112, g.729a, G.729ab, G.726, G.722, and Fax Relay

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Quick Specs Of Cisco PVDM2-8 

Figure 1 shows the appearance of PVDM2-8.


Table 1 shows the Quick Specs.

Product Code PVDM2-8
Description 8-channel packet fax and voice DSP module
Maximum Number of Channels in G.711 8
Maximum Number of Channels in High-Complexity Codecs 4
Maximum Number of Channels in Medium-Complexity Codecs 4

Product Details

Figure 2 shows PVDM2 SIMM Slots on the Cisco High-Density Digital Voice Network Modules.

 PVDM2 SIMM Slots on the Cisco High-Density Digital Voice Network Modules

PVDM2 Modules Specifications


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


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


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