PVDM4-32 – 32-Channel Voice DSP – Motherboard or T1/E1 NIM Slot – PVDM4 Module
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PVDM4-32 Description
PVDM4-32 is Cisco's 32-channel PVDM4 voice DSP module for Cisco 4000 Series ISR designs that need entry-density packet voice DSP resources.
Its purchasing boundary is density rather than software family. PVDM4-64, PVDM4-128, and PVDM4-256 use the same motherboard or T1/E1 NIM slot path but provide higher listed channel counts, while NIM-PVDM-32 keeps the 32-channel tier in a different NIM-slot form factor.
During BOM review, map the expected codec complexity to the 32 low-, 24 medium-, or 16 high-complexity channel limits and choose the physical DSP location. The T1/E1 NIM path is the Cisco-documented route for TDM voice services, while motherboard placement is for media services such as conferencing and transcoding.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
PVDM4-32 |
|
Product family |
Cisco Packet Voice Digital Signal Processor Modules |
|
Product type |
PVDM4 voice DSP module |
|
Cisco description |
32-channel high-density voice DSP module |
|
Slot type |
On-board motherboard or T1/E1 module slot |
|
Supported platform family |
Cisco 4000 Series ISRs except ISR 4461 for motherboard PVDM4 support |
|
Low-complexity channels |
32 |
|
Medium-complexity channels |
24 |
|
High-complexity channels |
16 |
|
TDM voice service path |
Supported when installed on a T1/E1 NIM |
|
Motherboard service path |
IP media services such as conferencing and transcoding |
|
Minimum software listing |
IOS XE 3.10 / XE SD-WAN 17.3 / vManage 20.3 |
|
Module power |
4.85W |
Application Scenarios
Select PVDM4-32 when a Cisco 4000 Series ISR bill of materials needs a PVDM4 module for a smaller DSP pool and does not justify the 64-, 128-, or 256-channel density tiers.
Choose this module for T1/E1 voice NIM planning when the DSP must be installed on the supported NIM path and the channel requirement fits the 32 low-complexity tier.
Specify PVDM4-32 for conferencing or transcoding resource planning on the ISR 4000 motherboard path when the design needs the entry PVDM4 density and not a NIM-PVDM form factor.
Product Comparison
|
Parameter |
PVDM4-32 | |||
|---|---|---|---|---|
|
Product family |
Cisco PVDM4 voice DSP modules |
Cisco PVDM4 voice DSP modules |
Cisco PVDM4 voice DSP modules |
Cisco NIM-PVDM voice DSP modules |
|
Cisco description |
32-channel high-density voice DSP module |
64-channel high-density voice DSP module |
128-channel high-density voice DSP module |
NIM PVDM with 32-channel DSP |
|
Product type |
PVDM4 voice DSP module |
PVDM4 voice DSP module |
PVDM4 voice DSP module |
NIM-based voice DSP module |
|
Slot type |
On-board motherboard or T1/E1 module slot |
On-board motherboard or T1/E1 module slot |
On-board motherboard or T1/E1 module slot |
Network Interface Module slot |
|
Low-complexity channels |
32 |
64 |
128 |
32 |
|
Medium-complexity channels |
24 |
48 |
96 |
24 |
|
High-complexity channels |
16 |
32 |
64 |
16 |
|
TDM service support |
Supported when installed on a T1/E1 NIM |
Supported when installed on a T1/E1 NIM |
Supported when installed on a T1/E1 NIM |
Not supported for NIM-PVDM-X modules |
|
Minimum software listing |
IOS XE 3.10 / XE SD-WAN 17.3 / vManage 20.3 |
IOS XE 3.10 / XE SD-WAN 17.3 / vManage 20.3 |
IOS XE 3.10 / XE SD-WAN 17.3 / vManage 20.3 |
IOS XE 3.16.1 / XE SD-WAN 17.3 / vManage 20.3 |
|
Platform context |
Cisco 4000 Series ISR PVDM4 path except ISR 4461 motherboard slot |
Cisco 4000 Series ISR PVDM4 path except ISR 4461 motherboard slot |
Cisco 4000 Series ISR PVDM4 path except ISR 4461 motherboard slot |
Catalyst 8300 and ISR 4461 NIM-slot platforms |
- In a PVDM4-32 vs PVDM4-64 comparison, the difference is DSP density: PVDM4-64 doubles the listed channel counts while using the same PVDM4 slot family.
- The PVDM4-32 vs PVDM4-128 comparison is a larger capacity jump inside the PVDM4 range, with PVDM4-128 listing four times the channel count.
- For PVDM4-32 vs NIM-PVDM-32, the channel tier matches, but the slot type, software listing, platform context, and TDM service boundary are different.
- Buyers deciding which model to choose should match the codec channel requirement first, then confirm whether the BOM calls for PVDM4 motherboard or T1/E1 NIM placement.
Selection Guide
1. Start with the entry PVDM4 channel tier
Choose PVDM4-32 when the voice design calls for 32 low-complexity, 24 medium-complexity, or 16 high-complexity channels in the PVDM4 module family.
2. Keep form factor and placement separate
Specify this SKU when the router design uses the on-board motherboard PVDM4 position or a Cisco T1/E1 NIM that accepts PVDM4 DSP hardware.
3. Route TDM service requirements to the NIM path
Plan T1/E1 NIM placement when the design needs TDM voice services; reserve motherboard placement for IP media services such as conferencing and transcoding.
4. Avoid mixing it with the NIM-PVDM equivalent
Select NIM-PVDM-32 only when the BOM requires a Network Interface Module slot DSP option for the Catalyst 8300 or ISR 4461 NIM-slot context.
Ordering Checklist
|
Checkpoint |
What to verify |
Why it matters |
|---|---|---|
|
PVDM identity |
The order line is PVDM4-32 and not PVDM4-64, PVDM4-128, or NIM-PVDM-32 |
Keeps the quote tied to the intended channel tier and physical module family |
|
Router slot plan |
The target Cisco 4000 Series ISR has a supported PVDM4 position, with ISR 4461 excluded for motherboard placement |
Avoids assigning this module to a router position Cisco does not document |
|
Service location |
TDM voice requirements are mapped to a T1/E1 NIM install, and motherboard placement is reserved for IP media services |
Prevents a voice gateway design from putting the DSP in the wrong service path |
|
Codec sizing |
The planned call mix fits 32 low-complexity, 24 medium-complexity, or 16 high-complexity channels |
Reduces the chance of buying the entry tier for a larger DSP requirement |
|
Software alignment |
IOS XE 3.10, XE SD-WAN 17.3, and vManage 20.3 listings are checked against the router software plan |
Keeps module selection consistent with Cisco’s published support table |
|
Voice entitlement |
Unified Communications Technology Package or the current Smart Licensing path is accounted for separately from the DSP hardware |
Prevents hardware procurement from being mistaken for the full voice feature entitlement |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Brand | Cisco | Product ID | PVDM4-32 |
| Product family | Cisco Packet Voice Digital Signal Processor Modules | Product type | PVDM4 voice DSP module |
| Cisco description | 32-channel high-density voice DSP module | Slot type | On-board motherboard or T1/E1 module slot |
| Supported platform family | Cisco 4000 Series ISRs except ISR 4461 for motherboard PVDM4 support | Low-complexity channels | 32 |
| Medium-complexity channels | 24 | High-complexity channels | 16 |
| TDM voice service path | Supported when installed on a T1/E1 NIM | Motherboard service path | IP media services such as conferencing and transcoding |
| Minimum software listing | IOS XE 3.10 / XE SD-WAN 17.3 / vManage 20.3 | Voice application licensing | Minimum Unified Communications Technology Package noted for voice applications |
| DSP technology | Multicore DSP technology | Interface | Integrated Services Card slot on motherboard or T1/E1 NIM |
| Operating temperature | 32 to 122 degrees F (0 to 50 degrees C) | Voltage | 3.3V |
| Current | 1.47A | Power | 4.85W |
| Weight | 0.08 lb (36 g) | Dimensions | 0.67 x 2.50 x 2.62 in. (1.7 x 5.1 x 6.7 cm) |
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