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- Description
- Specifications
The PVDM3-32 is a Cisco 32-channel high-density voice DSP module for Cisco 2900 and 3900 Series routers. It handles up to 32 channels with low-complexity codecs such as G.711, 21 channels with medium-complexity codecs and 14 channels with high-complexity codecs.
Each DSP on a PVDM3 module has 512-megabit DDR synchronous DRAM, and the module plugs into a 240-pin DIMM interface. Echo cancellation is software based, complies with ITU-T G.168 and covers a 128 ms tail. PVDM3 modules also offer power-saver modes, and in power-saver mode each module can save up to 5 watts.
The module covers digital and analog voice connections, conferencing, universal transcoding and transrating. It runs under the Unified Communications License on the Universal Cisco IOS Software image, from Release 15.0(1)M.
Supported routers are the Cisco 2901, 2911, 2921, 2951, 3925, 3945, 3925-E and 3945-E. The 2901 and 2911 have 2 PVDM slots each, the 2921 and 2951 have 3, and the 3925 and 3945 have 4. PVDM3 modules are not supported on the Cisco 2800 and 3800 Series. Cisco orders the module as PVDM3-32, or as the spare PVDM3-32=.
Neighbouring densities are the 16-channel PVDM3-16 and the 64-channel PVDM3-64. Other DSP densities are in the Cisco interface card range.
| Part number | PVDM3-32 (spare PVDM3-32=) |
| Type | 32-channel high-density voice DSP module |
| Channels, low-complexity codecs | 32 |
| Channels, medium-complexity codecs | 21 |
| Channels, high-complexity codecs | 14 |
| DSP external memory | 512-megabit DDR SDRAM per DSP |
| Interface | 240-pin DIMM |
| Echo cancellation | software, ITU-T G.168, 128 ms tail |
| Software | Unified Communications License, Universal image, Cisco IOS 15.0(1)M |
| Compatible with | Cisco 2901, 2911, 2921, 2951, 3925, 3945, 3925-E, 3945-E; not the 2800 and 3800 Series |