New Original Cisco Network Module Voice Bundle Router DSP Module PVDM4-64
Product Information
Cisco 4000 Series PVDMs are available in two form factors with four supported densities in each form factor:
● Motherboard PVDMs (PVDM4) for densities up to 256 channels (Figure 1)
● PVDM enhanced services modules (SM-X-PVDM) for densities up to 3080 channels (Figure 2)
The motherboard PVDMs are supported on all Cisco 4000 Series ISRs. They can be plugged directly into the single slot on the router motherboard or into the network interface module (NIM) that supports T1/E1 ports. A PVDM4 module plugged into the motherboard delivers IP-based voice services such as conferencing, media optimization, and transcoding only.
A PVDM4 module plugged into the T1/E1 NIM would be used for voice T1/E1 connectivity. Any excess channels can be reused toward other IP-based services supported on the motherboard slot. Enhanced DSP architecture accommodates a new packet-processing engine optimized for rich-media voice applications, while concurrently supporting the TDM-IP voice framework.
The PVDM enhanced services modules are supported on ISRs that contain an SM-X slot - namely the Cisco 4331, 4351, and 4451 ISRs. The SM-X modules support only IP-based voice services and cannot be used for TDM applications.
Table 1 Cisco 4000 Series ISR PVDM Part Numbers and Slot Requirements.
| Part Number | Slot | Description |
| PVDM4-32(=) | On-board motherboard or T1/E1 module slot | 32-channel high-density voice DSP module, or spare |
| PVDM4-64(=) | On-board motherboard or T1/E1 module slot | 64-channel high-density voice DSP module, or spare |
| PVDM4-128(=) | On-board motherboard or T1/E1 module slot | 128-channel high-density voice DSP module, or spare |
| PVDM4-256(=) | On-board motherboard or T1/E1 module slot | 256-channel high-density voice DSP module, or spare |
| SM-X-PVDM-500(=) | Enhanced services module slot | 768-channel high-density voice DSP module, or spare |
| SM-X-PVDM-1000(=) | Enhanced services module slot | 1024-channel high-density voice DSP module, or spare |
| SM-X-PVDM-2000(=) | Enhanced services module slot | 2048-channel high-density voice DSP module, or spare |
| SM-X-PVDM-3000(=) | Enhanced services module slot | 3080-channel high-density voice DSP module, or spare |
Table 2 shows the comparison of PVDM4-64, PVDM4-32 and PVDM4-128.
| Product Code | PVDM4-64 | PVDM4-32 | PVDM4-128 |
| Slot | On-board motherboard or T1/E1 module slot | On-board motherboard or T1/E1 module slot | On-board motherboard or T1/E1 module slot |
| Description | 64-channel high- density voice DSP module | 32-channel high-density voice DSP module | 128-channel high- density voice DSP module |
| Low Complexity | 64 | 32 | 128 |
| Medium Complexity | 48 | 24 | 96 |
| High Complexity | 32 | 16 | 64 |
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