NIM-PVDM-256 – 256-Channel Voice DSP – NIM Slot – IP Media Services
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NIM-PVDM-256 Description
NIM-PVDM-256 is a Cisco Packet Voice DSP network interface module that provides the 256-channel NIM-PVDM density tier for IP media services on Cisco branch edge platforms.
This SKU is the high-density NIM option in the documented NIM-PVDM set. It keeps the same NIM-slot form factor as NIM-PVDM-128 while doubling the listed low-, medium-, and high-complexity channel counts; SM-X-PVDM-500 moves to an enhanced service-module slot for a larger DSP pool.
Procurement review should match the DSP channel plan to codec complexity, confirm an available NIM slot or documented NIM adapter path, and verify the Cisco IOS XE, XE SD-WAN, and vManage baseline for the target Catalyst 8300, Catalyst 8200, or ISR 4461 design.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
NIM-PVDM-256 |
|
Product family |
Cisco Packet Voice Digital Signal Processor Modules |
|
Product type |
NIM-based voice DSP module |
|
Cisco description |
NIM PVDM with 256-channel DSP |
|
Slot type |
Network Interface Module slot |
|
Low-complexity channels |
256 |
|
Medium-complexity channels |
192 |
|
High-complexity channels |
128 |
|
Service scope |
IP-based voice services |
|
TDM application support |
Not supported for NIM-PVDM-X modules |
|
Catalyst 8300 software listing |
IOS XE 17.3.2 / XE SD-WAN 17.3.2 / vManage 20.3.2 |
|
Catalyst 8200 software listing |
IOS XE 17.4.1 or 17.5.1 baseline by model |
|
Module power |
15W |
Application Scenarios
Select NIM-PVDM-256 when the router BOM needs the largest Cisco-documented NIM-PVDM channel tier and the design assigns DSP resources to a Network Interface Module slot.
Use this SKU in Catalyst 8300 voice designs where IOS XE mode or XE SD-WAN mode must keep DSP-farm IP services aligned with Cisco-listed PVDM options.
Choose NIM-PVDM-256 for Catalyst 8200 or 8200L orders only after confirming the model-specific software listing and the required NIM slot availability.
Product Comparison
|
Parameter |
NIM-PVDM-256 |
SM-X-PVDM-500 | |
|---|---|---|---|
|
Product family |
Cisco NIM-PVDM voice DSP modules |
Cisco NIM-PVDM voice DSP modules |
Cisco SM-X-PVDM voice DSP modules |
|
Cisco description |
NIM PVDM with 256-channel DSP |
NIM PVDM with 128-channel DSP |
768-channel high-density voice DSP module or spare |
|
Product type |
NIM-based voice DSP module |
NIM-based voice DSP module |
Enhanced services voice DSP module |
|
Slot type |
Network Interface Module slot |
Network Interface Module slot |
Enhanced services module slot |
|
Low-complexity channels |
256 |
128 |
768 |
|
Medium-complexity channels |
192 |
96 |
384 |
|
High-complexity channels |
128 |
64 |
192 |
|
Service scope |
IP-based voice services |
IP-based voice services |
IP-based voice services |
|
Catalyst 8300 software listing |
IOS XE 17.3.2 / XE SD-WAN 17.3.2 / vManage 20.3.2 |
IOS XE 17.3.2 / XE SD-WAN 17.3.2 / vManage 20.3.2 |
IOS XE 17.3.2 / XE SD-WAN 17.3.2 / vManage 20.3.2 |
|
Datasheet platform context |
Catalyst 8300 and ISR 4461 NIM-slot platforms |
Catalyst 8300 and ISR 4461 NIM-slot platforms |
Catalyst 8300 and ISR platforms with SM-X slots |
- In a NIM-PVDM-256 vs NIM-PVDM-128 comparison, the difference is NIM-slot DSP density: NIM-PVDM-256 lists 256 low-complexity channels while NIM-PVDM-128 lists 128.
- The NIM-PVDM-256 vs SM-X-PVDM-500 comparison is a form-factor and capacity decision, because SM-X-PVDM-500 uses an enhanced services module slot and lists a higher low-complexity channel count.
- For buyers deciding which model to choose, the NIM-PVDM-256 comparison should first match channel density and slot type, then confirm the platform software listing.
Selection Guide
1. Size the order around the 256-channel NIM tier
Choose NIM-PVDM-256 when the official channel table matches the planned 256 low-complexity, 192 medium-complexity, or 128 high-complexity DSP requirement.
2. Keep the same slot family only when lowering density
Select NIM-PVDM-128 only when the design still needs a NIM-PVDM module but the listed channel count can be half of the NIM-PVDM-256 tier.
3. Move to SM-X-PVDM only when the slot plan changes
Use SM-X-PVDM-500 instead of NIM-PVDM-256 only when the router has the required enhanced services module slot and the BOM needs the larger DSP channel pool shown for that module.
4. Separate IP media services from TDM requirements
Quote NIM-PVDM-256 for IP-based voice services and keep any TDM application requirement tied to Cisco-documented voice NIM or PVDM form-factor guidance.
Ordering Checklist
|
Review Area |
Required Confirmation |
Procurement Risk |
|---|---|---|
|
Exact SKU |
Confirm NIM-PVDM-256 rather than NIM-PVDM-128 |
Avoids under-ordering the documented NIM-PVDM channel tier |
|
Slot plan |
Confirm a Network Interface Module slot or a Cisco-documented NIM adapter path |
Prevents assigning a NIM-based DSP module to the wrong physical slot |
|
Codec channel math |
Match the design to 256 low-, 192 medium-, or 128 high-complexity channels |
Prevents sizing the DSP pool from the wrong complexity column |
|
Target platform |
Verify Catalyst 8300, Catalyst 8200, Catalyst 8200L, or ISR 4461 support from current Cisco module documentation |
Prevents quoting the module for an unsupported branch platform |
|
Software baseline |
Check IOS XE, XE SD-WAN, and vManage minimum versions for the selected platform |
Keeps the hardware line item aligned with the deployment software train |
|
Service mode |
Confirm IP media service use rather than TDM application use |
NIM-PVDM-X modules are documented for IP-based voice services only |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Brand | Cisco | Product ID | NIM-PVDM-256 |
| Product family | Cisco Packet Voice Digital Signal Processor Modules | Product type | NIM-based voice DSP module |
| Cisco description | NIM PVDM with 256-channel DSP | Slot type | Network Interface Module slot |
| Low-complexity channels | 256 | Medium-complexity channels | 192 |
| High-complexity channels | 128 | Service scope | IP-based voice services |
| TDM application support | Not supported for NIM-PVDM-X modules | Catalyst 8300 software listing | IOS XE 17.3.2 / XE SD-WAN 17.3.2 / vManage 20.3.2 |
| C8200 software listing | IOS XE 17.4.1 / XE SD-WAN 17.4.1 / vManage 20.4.1 | C8200L software listing | IOS XE 17.5.1 / XE SD-WAN 17.5.1 / vManage 20.5.1 |
| DSP technology | Multicore DSP technology | Interface | Network Interface Module (NIM-PVDM-X) |
| Operating temperature | 32 to 122 degrees F (0 to 50 degrees C) | Voltage | 12V |
| Current | 1.25A | Power | 15W |
| Weight | 0.45 lb (204 g) | Dimensions | 1.25 x 3.50 x 7.24 in. (3.18 x 8.89 x 18.39 cm) |
Get More Information
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