Datasheet

Data Sheet
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PVDM2s on a NM-HDV2 module or on the mother board of an ISR router can be shared across multiple IP
Communications High-Density Digital Voice/Fax Network Modules. Please see Table 4 below for a list of PVDM2
modules supported.
PVDM3s equipped on the motherboards of the 2911, 2931, 2951, 3925, 3945 Unified Communications routers
can coexist with the PVDM2s on the NM-HDV2 modules as long as they are not both installed in the same domain.
The motherboard PVDM slots form one domain and each SM slot forms a separate domain. The motherboard
domain can contain either all PVDM2 modules or all PVDM3 modules. An SM domain can only contain PVDM2
modules housed by the NMHDV2 carrier card. If a mix of PVDM2s and PVDM3s are detected on the motherboard
slots, then the PVDM2s will be deactivated, allowing only the PVDM3s to be used actively. If PVDM2s are detected
in service-module slots and PVDM3s are installed on the motherboard, then both will continue to function in their
own domain and coexist.
Table 4. PVDM2 Packet Fax/Voice DSP Type and Density Supported on the IP Communications High-Density Digital
Voice/Fax Network Module
Module Name Description Number of DSPs Maximum
Channels
in High-
Complexity
1
Codec
Maximum
Channels
in Medium-
Complexity
2
Codec
Maximum
Channels in
G.711 codec
PVDM2-8 8-channel Packet Fax/Voice DSP Module 1 4 4 8
PVDM2-16 16-channel Packet Fax/Voice DSP Module 1 6 8 16
PVDM2-32 32-channel Packet Fax/Voice DSP Module 2 12 16 32
PVDM2-48 48-channel Packet Fax/Voice DSP Module 3 18 24 48
PVDM2-64 64-channel Packet Fax/Voice DSP Module 4 24 32 64
The 2900 Series and 3900 Series Integrated Services Routers support Network Modules (with PVDM2s) via an
adapter (part number SM-NM-ADPTR).
Table 5. Maximum Network Modules Allowed per Platform
Cisco Platform Maximum Number of Network Modules Allowed
Cisco 2811/2821/2851 Integrated Services Routers 1
Cisco 3825 Integrated Services Router 2
Cisco 3845 Integrated Services Router 4
Cisco 2901/2911/2921/2951 Integrated Services Routers 0 / 1 / 1 / 2
Cisco 3925/3945 Integrated Services Routers 2 / 4
1
High-complexity codecs supported are: G.711, G.726, G.729, G.723.1, G.728, GSM-EFR and Fax Relay.
2
Medium-complexity codecs supported are: G.711, G.726, G.729a, GSM and Fax Relay