Cisco OL-12812-01 - Manual (Page 10)

Connecting Cisco Voice Network Modules to the Network
IP Communications High-Density Digital Voice or Fax Network Module
10
Connecting Cisco Voice Network Modules to the Network
Packet Fax or Voice DSP Modules
The packet fax or voice digital signal processor (DSP) module (PVDM2) is available in five
stock-keeping units (SKUs):
You can install up to four PVDM2 modules on all of the NM-HDV2 SKUs. The number of channels
supported depends on the number and density-type of PVDM2 modules installed.
Note PVDM and PVDM2 modules are not interchangeable. Use PVDM modules with the NM-HDV network
module only, and use PVDM2 modules with the NM-HDV2 network module only.
When used with PVDM2 modules and either the built-in T1/E1 ports or the T1/E1 voice or WAN
interface cards (VWIC), the NM-HDV2 network module provides the interface to the PBX, the PSTN,
or WAN. The following VWICs are supported:
• VWIC-1MFT-T1
• VWIC-2MFT-T1
• VWIC-2MFT-T1-DI
• VWIC-1MFT-E1
• VWIC-2MFT-E1
• VWIC-2MFT-E1-DI
Table 1 PVDM2 Module SKUs
Module Name Description
PVDM2-8 8-channel packet fax or voice DSP module
PVDM2-16 16-channel packet fax or voice DSP module
PVDM2-32 32-channel packet fax or voice DSP module
PVDM2-48 48-channel packet fax or voice DSP module
PVDM2-64 64-channel packet fax or voice DSP module
Table 2 Channels Per PVDM2 Module Type
Module Name
Max Channels for High
Complexity
1
1. High-complexity vocoders supported: G.711, G.726, G.729, G.723.1, G.728, and Fax Relay.
Max Channels for
Medium Complexity
2
2. Medium-complexity vocoders supported: G.711, G.726, G.729a, and Fax Relay.
Range of Channels for
Flexi Complexity
3
3. Flexi vocoders supported: G.711, G.726, G.729, G.723.1, G.728, and Fax Relay (number of channels depends on codec
selected).
PVDM2-8 4 4 4-8
PVDM2-16 6 8 6-16
PVDM2-32 12 16 12-32
PVDM2-48 18 24 18-48
PVDM2-64 24 32 24-64