Connecting Cisco Voice Network Modules to the Network
IP Communications High-Density Digital Voice or Fax Network Module
Table 1  | PVDM2 Module SKUs  | 
   |    |    | 
Module Name |    | Description  | 
   |    |    | 
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  | 
   |    |    | 
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.
Table 2  | Channels Per PVDM2 Module Type  |    |    | 
   |    |    |    |    | 
   |    | Max Channels for High  | Max Channels for  | Range of Channels for  | 
Module Name  |    | Complexity1  | Medium Complexity2  | Flexi Complexity3  | 
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  | 
   |    |    |    |    | 
1.High-complexity vocoders supported: G.711, G.726, G.729, G.723.1, G.728, and Fax Relay.
2.Medium-complexity vocoders supported: G.711, G.726, G.729a, and Fax Relay.
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).
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
•VWIC-1MFT-G703
•VWIC-2MFT-G703
When used with PVDM2 modules and next-generation analog or BRI voice interface cards (VIC2), the NM-HDV2 network module provides the interface to telephony equipment (PBX, key systems, telephones, and fax machines) and to the PSTN. The following VICs are supported:
•VIC-2DID
•VIC-1J1
Connecting Cisco Voice Network Modules to the Network