Description
The Cisco NIM-4MFT-T1/E1 is a versatile network interface module designed for the Cisco 4000 Series Integrated Services Routers, offering four software-configurable T1/E1 ports. Built to deliver high-density digital voice, WAN connectivity, and data services, this module supports both channelized and unchannelized configurations. Its compact form factor and modular design make it an efficient choice for expanding network capabilities without requiring additional rack space. Ideal for businesses seeking cost-effective scalability, it integrates seamlessly into existing infrastructures.
This module supports a wide range of protocols, including Frame Relay, HDLC, PPP, and ISDN PRI, making it suitable for diverse enterprise environments. Each port can be individually configured as T1 or E1, allowing flexibility in deployment and bandwidth allocation. Compatible with Cisco’s digital signal processor (DSP) modules, it also supports voice applications such as VoIP and TDM gateway functionality. The NIM-4MFT-T1/E1 is a reliable solution for consolidating WAN links or upgrading legacy telephony systems in a used hardware setup.

