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256-channel DSP NIM ensures stable telephony processing.
NIM-PVDM-256
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NIM with 256 Channel DSP
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NIM-PVDM-256
- Description:
- NIM with 256 Channel DSP
- Rating:
Added to cart 28 times recently
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- Brand:
- Cisco
- GTIN:
- 889728296700
- Condition:
- Warranty:
- 3
- List Price:
$12,860.00
- Price:
$6,784.0047.2% off
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NIM-PVDM-256 Overview
NIM-PVDM-256 is a high-performance network interface module engineered to deliver advanced voice and data processing in modern routers and switches. It supports high-speed connectivity at up to 10Gbps with an SFP+ connector interface and is designed to seamlessly integrate with major networking platforms.
NIM-PVDM-256 features a PCIe form factor for straightforward installation and compatibility with industry-leading devices from Cisco, Juniper, Arista, Dell, and HP. Built to support core protocols including TCP/IP, this module is ideal for expanding data center capacity and upgrading network interfaces in mission-critical environments.
NIM-PVDM-256 price is $6,784.00, a 47.2% saving from the Cisco list price of $12,860.00. NIM-PVDM-256 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for NIM-PVDM-256 for additional pricing. Browse the full Cisco Catalyst 8000 Series Edge Platforms Modules & Cards series or explore all Cisco products.
NIM-PVDM-256 Specifications
- Product Type
- Network Module
- Module Type
- N/A
- Data Rate
- 10Gbps
- Connector Type
- SFP+
- Supported Protocols
- TCP/IP
- Form Factor
- PCIe
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Arista / Dell / HP
- Max Speed
- 10Gbps
- Supported Features
- Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS
- Power Consumption
- N/A
- Interface Ports
- SFP+
- Expansion Slots
- NIM
- Product Name
- NIM-PVDM-256
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| NIM-PVDM-256 |  C-SM-16P4M2X |  NIM-2FXSP/4FXOP |  C-SM-40P4M2X |  MEM-C8300-8GB | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Arista / Dell / HP | Routers, Switches, Servers | Cisco / Juniper / Arista / Dell / HP | Cisco, Juniper, Dell, HP | Cisco / Juniper / Arista / Dell / HP |
| Connector Type | SFP+ | RJ-45 | SFP+ | SFP+ | SFP+ |
| Data Rate | 10Gbps | 1Gbps | 10Gbps / 40Gbps | 40G | 10Gbps |
| Depth | N/A | 2.0 inches | N/A | N/A | 0.5 inches |
| Expansion Slots | NIM | N/A | NIM | N/A | PCIe |
| Form Factor | PCIe | PCIe | Modular | PCIe | PCIe |
| Height | N/A | 1.0 inches | N/A | N/A | 1.5 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Interface Ports | SFP+ | Ethernet | SFP+ | SFP+ | SFP+ |
| Max Speed | 10Gbps | 1Gbps | 40Gbps | 40Gbps | 10Gbps |
| Module Type | N/A | Ethernet | NIM | Ethernet / SFP+ | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | N/A | 8W | 15W | 15W | 15W |
| Product Name | NIM-PVDM-256 | C-SM-16P4M2X 16-Port Ethernet Module | NIM-2FXSP/4FXOP Network Interface Module | C-SM-40P4M2X High-Speed Network Module | MEM-C8300-8GB |
| Product Type | Network Module | Network Module / Network Card | Network Module / Network Card | Network Module | Network Module / Network Card |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Features | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation / Jumbo Frames / QoS | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Supported Protocols | TCP/IP | TCP/IP | TCP/IP / Fibre Channel | TCP/IP | TCP/IP |
| Weight | N/A | 1.2 lbs | N/A | N/A | 1.2 lbs |
| Width | N/A | 3.5 inches | N/A | N/A | 5.0 inches |
Reviews & Ratings
J
Jett Grant
5
Reliable voice expansion for ISR routers.
K
Koa Reed
4
Professional DSP module with consistent uptime.
L
Leif Morris
5
Efficient handling of multiple voice sessions.
M
Merrick Doyle
5
Stable performance in busy call environments.
N
Nico Spencer
5
Dependable voice processing capacity.
Questions & Answers
What is the Cisco NIM-PVDM-256 and what are its primary functions?
The Cisco NIM-PVDM-256 is a network interface module with an integrated 256-channel digital signal processor (PVDM) that delivers high-density voice, video and conferencing services on compatible Cisco routers.
How many simultaneous voice channels does the NIM-PVDM-256 support?
The module supports up to 256 concurrent DSP voice channels, enabling large-scale transcoding, conferencing and fax relay on a single NIM slot.
Which Cisco routers are compatible with the NIM-PVDM-256?
The NIM-PVDM-256 is supported on Cisco ISR 4000 Series, ISR 2900/3900 Series and ASR 1000 Series routers that feature a compatible NIM slot and appropriate IOS image.
What voice features are supported by the NIM-PVDM-256?
It supports wideband and narrowband codecs (G.711, G.729, G.723, G.726, G.728), T.38 fax relay, modem passthrough and hardware-assisted conferencing for up to 32 parties.
How do I install the NIM-PVDM-256 in my Cisco router?
Power down the router, insert the NIM-PVDM-256 into an available NIM slot, secure the module, power the router back on and verify installation with the `show platform hardware` command.
Is software licensing required to activate the NIM-PVDM-256?
Yes—while the hardware carries no built-in license, you must activate Cisco Unified Communications or Unified Border Element feature licenses to enable advanced DSP functions.
What is the power consumption of the NIM-PVDM-256?
Under full load, the module draws approximately 7–10 watts, meeting Cisco’s energy-efficient design standards.
Does the NIM-PVDM-256 support T.38 fax relay and modem passthrough?
Yes—T.38 fax relay and analog modem passthrough are fully supported on all 256 channels for reliable fax and modem connectivity.
What is the maximum conferencing capacity of the NIM-PVDM-256?
You can host up to 80 DSP-assisted audio channels in mixed conferencing or up to 4 simultaneous 20-party conferences on a single module.
Which codecs and protocols does the NIM-PVDM-256 support?
It supports G.711 μ-law/A-law, G.729a/b, G.723.1, G.726, G.728, T.38, H.263, H.264 video, SRTP and SILK for versatile voice/video deployments.
How do I configure the NIM-PVDM-256 on Cisco IOS?
In global configuration mode, use `voice service voip`, `dspfarm profile`, and `hardware dsp` commands to allocate DSP channels and assign them to dial peers.
What are the environmental specifications for the NIM-PVDM-256?
Operating temperature: 0–40 °C; storage temperature: –40–70 °C; humidity: 5–85% non-condensing; altitude: up to 5,000 ft.
How does the NIM-PVDM-256 differ from the NIM-PVDM-128?
The NIM-PVDM-256 doubles the DSP channel capacity from 128 to 256, enabling higher-density voice conferencing, transcoding and fax services in the same form factor.
Can I mix different PVDM cards in the same router?
Yes—different PVDM modules can coexist in separate NIM slots, but you cannot combine multiple PVDM cards within a single slot or exceed slot capacity.
What warranty and support options are available for the NIM-PVDM-256?
Cisco provides a one-year limited hardware warranty; optional Cisco Smart Net® Total Care contracts offer 24/7 hardware replacement and software updates.
What are common troubleshooting steps for the NIM-PVDM-256?
Verify module recognition with `show controllers dsp all`, confirm IOS compatibility, reseat the card if unrecognized and contact Cisco TAC for advanced diagnostics.