The Cisco NM-HDV2 Network Module is a high-density digital voice or fax network module that can be installed in Cisco 2800, 2900, 3800, and 3900 series routers. It provides high-density digital voice connectivity up to 4 T1/E1 ports or 120 medium-complexity channels. It also provides high-density data WAN connectivity up to 4 T1/E1 ports. Analog voice connectivity up to 4 ports is also supported.
The following are the technical specifications of the Cisco NM-HDV2 Network Module:
- Supports up to 4 T1/E1 ports or 120 medium-complexity channels
- Supports up to 4 analog voice ports
- Supports up to 32 HDLC channel groups with a total bandwidth of 2.048 Mbps
- Supports PVDM2 technology that supports higher call densities and more flexibility in channel allocation per DSP
- G. 168-compliant echo cancellation for tail circuits up to 64 milliseconds
- Supports Cisco IOS Release 12.4(11)T or later
The Cisco NM-HDV2 Network Module is a versatile and powerful voice and fax network module that can be used to provide a variety of voice and fax services.
Here are some of the benefits of using the Cisco NM-HDV2 Network Module:
- High-density voice connectivity: The NM-HDV2 can support up to 120 medium-complexity channels, which is enough to support a large number of VoIP phones.
- High-density data WAN connectivity: The NM-HDV2 can also support up to 4 T1/E1 ports, which can be used to provide high-speed data connectivity to remote sites.
- Analog voice connectivity: The NM-HDV2 also supports 4 analog voice ports, which can be used to connect analog telephones or fax machines to the router.
- PVDM2 technology: The NM-HDV2 uses PVDM2 technology, which allows for higher call densities and more flexibility in channel allocation per DSP.
- G. 168-compliant echo cancellation: The NM-HDV2 supports G. 168-compliant echo cancellation, which helps to improve the quality of voice calls.
Overall, the Cisco NM-HDV2 Network Module is a versatile and powerful voice and fax network module that can be used to provide a variety of voice and fax services.
