Cisco NIM-4FXS

The Cisco NIM-4FXS is a network interface module (NIM) designed for use with Cisco Integrated Services Routers (ISRs). It provides four analog Foreign Exchange Station (FXS) ports, which allow connection to analog devices such as telephones, fax machines, and modems. The NIM-4FXS module enables voice and data services over traditional analog telephony infrastructure, making it suitable for small to medium-sized businesses that still rely on analog devices.