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PVDM4-64
Cisco PVDM4-64 64-Channel DSP Module for ISR 4000
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PVDM4-64 is the Cisco 64-channel high-density voice DSP module for 4000 Series ISRs, installed in the ISC motherboard slot or a T1/E1 NIM slot. 64 low-complexity channels give the 64-channel high-density voice DSP module twice the PVDM4-32 density for low, medium and high-complexity voice. ISR 4461 takes NIM PVDM modules instead. A Cisco ISR 4000 DSP module placement on the motherboard gives IP-based voice services for conferencing, media optimization and transcoding. TDM voice service uses the Cisco Fourth-Generation T1/E1 Voice and WAN NIM placement, and excess channels can be reused for IP-based services. Before the chassis build, match the host generation and the free slot.
PVDM4-64 price for new stock is $283.50. PVDM4-64 refurb price is $64.05. PVDM4-64 is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for PVDM4-64 for additional pricing. Browse the full Cisco PVDM4 DSP Modules series or explore all Cisco products.
64 low-complexity voice channels, 48 medium-complexity voice channels and 32 high-complexity voice channels set the DSP resource count. 4.85W power, 3.3V and 1.47A match the motherboard PVDM electrical profile. 0°C to 50°C operating temperature and 0.08 lb weight fit the PVDM4 physical profile. 17 mm height, 51 mm width and 67 mm depth match the card clearance inside the host. PVDM4-64 uses multicore DSP technology for digital voice connections, conferencing, universal transcoding, transrating and media optimization. Echo cancellation has a 128-millisecond tail and complies with ITU-T G.168. Motherboard insertion needs router power off; T1/E1 NIM insertion needs slot shutdown through OIR commands.
PVDM4-64 is offered new sealed and certified refurbished. Certified refurbished units are inspected and bench-tested in a compatible host, and the DSP reports its capacity to the host. Before the PO, confirm the 4000 Series ISR, the ISC motherboard slot or T1/E1 NIM slot, and the Unified Communications Technology Package for voice applications. Regional stock/RMA covers UK, EU, US and MEA, with PO accepted, Net-30 for government and RMA with advance replacement. Warranty is new — up to 3-year extended and certified refurbished — up to 1 year; returns are 30 days on every condition · terms apply.
| Key Specs | Key Spec Values |
|---|---|
Capacity | 64 low / 48 medium / 32 high channels |
Fits | 4000 Series ISRs except ISR 4461 |
Module Features | 64-channel density; 128 ms echo cancellation |
Requires | UC package; T1/E1 NIM for TDM voice |
Slot | ISC motherboard slot or T1/E1 NIM slot |
Hot Swap | No; motherboard install needs power off |
An ISR 4000 voice gateway needs 64 low-complexity, 48 medium-complexity or 32 high-complexity channels. PVDM4-64 fits the motherboard for conferencing and transcoding, or a fourth-generation T1/E1 NIM for TDM voice. Count one motherboard slot per router and each T1/E1 NIM that needs DSP before the PO.
A T1/E1 NIM build needs DSP on the NIM, not only on the motherboard. PVDM4-64 provides TDM voice services when installed on the Cisco Fourth-Generation T1/E1 Voice and WAN NIM. Match the NIM count, the UC package and the codec complexity before the PO.
A sparing pool for ISR 4200, ISR 4300 or select ISR 4400 hosts covers routers Cisco stopped selling on 7 November 2023. PVDM4-64 replaces a failed 64-channel motherboard or T1/E1 NIM DSP. Count the installed slot location and the host model before the PO.
ISR 4461 motherboard use
ISR 4461 has no motherboard PVDM4 slot. Use NIM-PVDM-64 for a 64-channel DSP resource in ISR 4461 NIM slots.
More than 64 low-complexity channels
PVDM4-64 tops out at 64 low-complexity, 48 medium-complexity and 32 high-complexity channels. Use PVDM4-128 when the same PVDM4 slot needs the next density.
Catalyst 8300 host slots
Catalyst 8300 does not take motherboard PVDM4 modules. Use NIM-PVDM-64 in a Catalyst 8300 NIM slot for 64-channel IP-based voice services.
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| PVDM4-64 |  PVDM4-128 |  PVDM4-32 |  PVDM4-256 |  PVDM2-12DM | |
|---|---|---|---|---|---|
| Form Factor | Daughter Card | Daughter Card | Daughter Card | Modular | PCIe |
| Module Type | DSP Module | DSP Module | DSP Module | DSP Card | Ethernet |
| Operating Temperature | 0°C to 50°C | 0°C to 50°C | 0°C to 50°C | 0 to 70°C | 0 to 70°C |
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PVDM4-64 is the Cisco 64-channel high-density voice DSP module for Cisco 4000 Series ISRs. The ordering description is 64-channel high-density voice DSP module, or spare. PVDM4 identifies the fourth-generation Packet Voice Digital Signal Processor Module, and 64 identifies the low-complexity channel density.
PVDM4-64 fits Cisco 4000 Series ISRs except ISR 4461. The platform motherboard has one PVDM4 slot, and extra PVDM4 modules fit T1/E1 NIMs. ISR 4461 has no motherboard slot and takes NIM-PVDM-64 for 64-channel DSP capacity in a NIM slot.
A Cisco 4000 Series ISR uses motherboard PVDM4 DSP modules PVDM4-32, PVDM4-64, PVDM4-128 and PVDM4-256, except ISR 4461. The same family can take additional PVDM4 modules on T1/E1 NIMs. Select the PID by channel density and codec complexity.
PVDM4-64 provides 64 low-complexity voice channels, 48 medium-complexity voice channels or 32 high-complexity voice channels. Low-complexity codecs include G.711, Clear Channel, and fax and modem pass-through. Medium and high-complexity selections reduce the channel count, so match the codec plan before the PO.
A Cisco 4000 Series ISR has one motherboard PVDM4 slot, so one PVDM4-64 fits the motherboard position. Additional PVDM4 modules fit T1/E1 NIMs. Motherboard insertion needs router power off; a NIM placement needs the slot shut down through OIR commands before removal.
PVDM4-64 adds DSP resources for digital voice connections, conferencing, universal transcoding, transrating and media optimization. The edge is 64 low-complexity channels, twice the PVDM4-32 density. Echo cancellation has a 128-millisecond tail and complies with ITU-T G.168 for voice.
PVDM4-64 needs the Unified Communications Technology Package for voice applications on ISR 4000 platforms. Smart Licensing applies across routing platforms from Cisco IOS XE 16.10.1a. Use the router release that carries the UC package, the T1/E1 NIM configuration and the planned voice features.
PVDM4-64 is the base PID, and PVDM4-64= is the spare-form PID for the same 64-channel DSP module. PVDM4-64-RF is the Cisco-remanufactured Refresh PID. Certified refurbished is ORM's condition and is separate from the Cisco-remanufactured Refresh PID on the PO.
PVDM4-64 has the density edge over PVDM4-32: 64 low-complexity, 48 medium-complexity and 32 high-complexity channels instead of 32, 24 and 16. Both fit the same PVDM4 motherboard or T1/E1 NIM positions on ISR 4000 routers except ISR 4461.
PVDM4-128 is the next density above PVDM4-64 on the same PVDM4 slot type. PVDM4-128 gives 128 low-complexity, 96 medium-complexity and 64 high-complexity channels. PVDM4-64 fits buyers who need 64, 48 or 32 channels in the same host position.
PVDM4-64 is a motherboard or T1/E1 NIM daughter card for ISR 4000 routers except ISR 4461. NIM-PVDM-64 is a network interface module PID for Catalyst 8300 and ISR 4461 NIM slots. Pick by host slot, not by 64-channel density.
Cisco has not announced an end-of-sale date for PVDM4-64. Cisco stopped selling the Cisco ISR4200, ISR4300 and select ISR4400 Series Platform on 7 November 2023, and the last date of support for those hosts is 30 November 2028. Plan host sparing against that date.
ORM offers PVDM4-64 new sealed and certified refurbished. Certified refurbished units are inspected and bench-tested in a compatible host, and the DSP reports its capacity to the host. Cisco 90-Day Limited Hardware Warranty sits beside ORM's cover. Warranty is new — up to 3-year extended and certified refurbished — up to 1 year.
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