Cisco NIM-8MFT-T1/E1=

Overview

The Cisco NIM-8MFT-T1/E1= is a fourth-generation expansion module designed to add eight digital trunk ports to a Cisco 4451-X Integrated Services Router. It supports both T1 and E1 circuits on a single card, providing flexibility for branch offices across different regions without the need to change hardware. Each E1 interface delivers data rates up to 2.048 Mbps, making it suitable for typical branch voice and data traffic demands.

This module consolidates WAN data and Public Switched Telephone Network (PSTN) connectivity into one slot, simplifying network infrastructure. It includes an integrated CSU/DSU on every port, reducing the need for external adapters and streamlining cabling. The onboard Packet Voice Digital Signal Processor 4 (PVDM4) slot enables hardware-based voice processing, such as echo cancellation, to maintain call quality even under heavy network load.

Key features

• Eight configurable ports that support either T1 or E1 circuits, allowing versatile deployment across different network environments
• Integrated CSU/DSU on each port to simplify cabling and eliminate the need for additional external devices
• Dedicated PVDM4 slot for advanced voice processing features like echo cancellation up to 128 ms, ensuring clear voice communication
• Supports both WAN data and voice services on a single card, enabling network consolidation and efficient use of router slots
• Remote management capabilities through SNMP and Telnet, allowing network teams to monitor and configure the module with familiar tools
• Plug-in design for easy installation or replacement with minimal disruption during maintenance windows

Key specs

• Number of ports: 8 digital trunk ports
• Supported circuit types: T1 and E1
• Maximum data rate per E1 interface: 2.048 Mbps
• Voice processing: Packet Voice Digital Signal Processor 4 (PVDM4) slot included
• Echo cancellation: up to 128 ms
• Integrated CSU/DSU: included on every port
• Management protocols: SNMP, Telnet
• Compatible router: Cisco 4451-X Integrated Services Router

Connectivity and compatibility

This expansion module fits directly into the Cisco 4451-X Integrated Services Router, providing seamless integration with existing network infrastructure. Its support for both T1 and E1 circuits makes it adaptable to various regional telecommunication standards, which is especially useful for organizations operating in multiple countries or regions.

• Supports T1 circuits commonly used in North America and Japan
• Supports E1 circuits widely used in Europe and other regions
• Integrated CSU/DSU removes the need for external line termination devices
• Compatible with WAN and voice applications, consolidating multiple services on one card

Ideal uses and environments

This module is well suited for branch offices requiring reliable PSTN access alongside data connectivity, call centers managing high volumes of T1 or E1 voice traffic, and service providers deploying managed voice gateways for multiple customers. Its combination of flexible trunk support and onboard voice processing helps maintain call quality and network efficiency in environments where voice and data services coexist.

Network administrators will appreciate the straightforward management and plug-in design, which reduces downtime during upgrades or replacements. The module fits well in setups where space is limited but multiple digital trunk connections are necessary.

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