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- Description
- Specifications
The PVDM4-64 is a Cisco 64-channel high-density packet voice DSP module, an ISR 4000 voice module. It provides 64 channels at low complexity, 48 at medium complexity and 32 at high complexity.
Motherboard PVDM4 modules are supported on all Cisco 4000 Series ISRs except the ISR 4461. The module plugs directly into the single slot on the router motherboard, and it can also go into a T1/E1 NIM.
The PVDM4 family has echo cancellation, tone detection, noise reduction, acoustic shock prevention and gain control. The echo canceller has a tail length of 128 milliseconds and complies with ITU-T G.168. In power-saver mode each PVDM4 can save up to 5 watts. AMR-WB is not supported, and iSAC is for transcoding only.
A related 64-channel module is the NIM-PVDM-64 64-channel DSP module, and the PVDM4-32U64 32-to-64 channel upgrade is the factory upgrade from 32 to 64 channels. More voice parts are in Cisco miscellaneous parts.
Related: Cisco 4321 router parts
Related: Cisco 4331 router parts
Related: Cisco 4431 router parts
| Part number | PVDM4-64 |
| Type | packet voice DSP module (PVDM4), 64 channels |
| Channels, low complexity | 64 |
| Channels, medium complexity | 48 |
| Channels, high complexity | 32 |
| Slot | router motherboard slot or T1/E1 NIM slot |
| Echo canceller | 128 ms tail, ITU-T G.168 |
| Power-saver mode | saves up to 5 W per PVDM4 |
| Codec limits | AMR-WB not supported; iSAC for transcoding only |
| Compatible with | Cisco 4000 Series ISRs except the ISR 4461 |