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Home Networking Router, Security, NPB Routers Cisco NM-1T3/E3 Single-Port WAN Expansion Module

Cisco NM-1T3/E3 Single-Port WAN Expansion Module

Brand:
Cisco

The Cisco NM-1T3/E3 is a high-speed WAN network module featuring a single T3/E3 port, designed for reliable enterprise connectivity. It supports up to 44.736 Mbps data transfer and integrates seamlessly with Cisco 2600, 3600, and 3700 series routers, making it ideal for branch offices and dedicated leased line environments.

OVERVIEW

  • The Cisco NM-1T3/E3 network module provides scalable WAN connectivity with support for both T3 and E3 interfaces. It is ideal for organizations requiring consistent, high-bandwidth communication between remote locations. With support for multiple encapsulation protocols and flexible clocking options, this module ensures compatibility with a wide range of network infrastructures.

USE CASES

  • Enterprise WAN connectivity for branch offices
  • ISP and telecom network deployments
  • Data center interconnection
  • High-speed leased line communication
  • Backup WAN link for redundancy planning
  • Secure corporate network expansion

KEY FEATURES

  • Single-port T3/E3 high-speed WAN interface
  • Hot-swappable design for easy maintenance
  • Supports HDLC and PPP protocols
  • Compatible with Cisco 2600, 3600, and 3700 routers
  • Full-duplex communication for optimized throughput
  • Flexible clocking (internal and external)
  • BNC connector for stable connectivity
  • Supports Frame Relay, ATM, and HDLC encapsulation
  • Reliable error detection with BIP
  • Plug-and-play installation for quick deployment

TECHNICAL SPECIFICATIONS

Performance:
  • High-speed WAN connectivity up to 44.736 Mbps (T3) / 34.368 Mbps (E3)
  • Optimized for stable, enterprise-grade data transmission
  • Supports full-duplex communication for maximum throughput
  • Reliable performance for leased line and dedicated WAN links
WAN Interface & Connectivity:
  • 1-port software-selectable T3/E3 interface
  • Integrated CSU/DSU functionality for direct WAN connection
  • 75-ohm BNC connectors (Tx/Rx) for secure signal transmission
  • Supports long-distance connectivity with minimal signal loss
Protocols & Encapsulation:
  • HDLC (High-Level Data Link Control)
  • PPP (Point-to-Point Protocol)
  • Frame Relay
  • ATM-DXI (ATM Data Exchange Interface)
  • Transparent HDLC encapsulation support
Compatibility:
  • Designed for Cisco 2600, 3600, and 3700 series routers
  • Seamless integration with existing Cisco infrastructure
  • Ideal for upgrading legacy WAN interfaces

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