Cisco NM-HDV-1J1-30

The Cisco NM-HDV-1J1-30 is a network module designed for Cisco 2600, 3600, and 3700 series routers. It is a voice and fax network module that provides digital voice and fax connectivity for these routers. The module supports one digital voice interface (T1/E1) and can handle up to 30 channels for voice and fax communication. It is commonly used in enterprise and service provider environments to enable voice over IP (VoIP) and other voice services.