NM-1A-T3/E3 Cisco WAN Network Module for 2600/3600 Series

Highlight Cisco NM-1A-T3/E3 WAN Module

The Cisco NM-1A-T3/E3 44.74 Mbps Wide Area Network Module is engineered to deliver robust ATM connectivity for enterprise and service provider environments. Designed for Cisco 2600 and 3600 Series routers, this module ensures seamless integration into existing infrastructures while supporting high-speed backbone and branch office connections.

General Information

• Manufacturer: Cisco
• Part Number: NM-1A-T3/E3
• Device Type: Network Module

Technical Specifications

• Technology: Asynchronous Transfer Mode
• WAN Interface: 1 × Software-selectable T3 or E3 Port
• Connector Type: 75-ohm Dual BNC
• T3 Line Rate: 44.736 Mbps
• E3 Line Rate: 34.368 Mbps
• Duplex Mode: Full-Duplex
• ATM AAL5: Forum Compliant
• Supported Traffic Classes: CBR, VBR-rt, VBR-nrt, ABR, UBR, UBR+
• Cabling: 75-ohm Coaxial Cable
• LED Indicators: ATM Status, RX, TX, Alarm, Loopback
• Network Standards: ATM Forum, DS3/T3, E3
• Installation: Internal Cisco NM Slot
• Operating Mode: Software Configurable
• Hot Swappable: No
• Cisco IOS Requirement: Cisco IOS Plus Feature Set

Compatibility

Supported Cisco Router Platforms

• Cisco 2811
• Cisco 2821
• Cisco 2851
• Cisco 3825
• Cisco 3845
• Cisco 2600 Series
• Cisco 3600 Series
• Cisco 3700 Series
• Cisco 3800 Series

Cisco NM-1A-T3/E3 WAN Network Module Overview

The Cisco NM-1A-T3/E3 44.74MBPS WAN Network Module is a specialized expansion component designed for Cisco 2600 and 3600 Series routers. This module provides high-speed connectivity for wide area networks, enabling enterprises to integrate T3 and E3 circuits into their infrastructure. With its robust design and compatibility, the NM-1A-T3/E3 ensures reliable performance for mission-critical applications, offering seamless integration with Cisco IOS software and advanced networking features.

Interface Capabilities

The NM-1A-T3/E3 module supports both T3 and E3 interfaces, providing flexibility for deployment in diverse networking environments. The T3 interface delivers a data rate of 44.74 Mbps, while the E3 interface offers 34.368 Mbps. This dual capability allows organizations to adapt to regional standards and carrier requirements without replacing hardware.

Connector and Cabling

The module utilizes BNC coaxial connectors for secure and stable connections. It supports 75-ohm cabling, ensuring optimal signal transmission over extended distances. The design emphasizes durability and reliability, minimizing signal loss and maintaining consistent throughput across WAN links.

Data Throughput

With a maximum throughput of 44.74 Mbps on T3 circuits, the NM-1A-T3/E3 module is ideal for high-bandwidth applications such as video conferencing, large-scale data transfers, and enterprise-level connectivity. The E3 interface provides 34 Mbps, suitable for regional deployments where E3 is the standard.

Detection and Correction

The module incorporates advanced error detection mechanisms, including cyclic redundancy checks and alarm indication signals. These features enhance reliability by identifying transmission errors and maintaining network integrity.

Encapsulation Support

The NM-1A-T3/E3 supports multiple encapsulation methods, including PPP and HDLC. This flexibility allows integration with diverse WAN architectures, ensuring compatibility with legacy systems and modern infrastructures alike.

Supported Platforms

The NM-1A-T3/E3 is fully compatible with Cisco 2600 and 3600 Series routers. These platforms are widely deployed in enterprise and service provider environments, making the module a versatile solution for expanding WAN capabilities.

IOS Software Integration

The module requires Cisco IOS software version 12.2 or later, ensuring access to advanced routing, security, and QoS features. Integration with IOS allows administrators to configure WAN interfaces seamlessly, leveraging Cisco’s extensive suite of networking protocols.

Enterprise Connectivity

Enterprises can deploy the NM-1A-T3/E3 to connect branch offices to headquarters via high-speed WAN links. The module’s robust performance ensures consistent communication across geographically dispersed locations, supporting collaboration and centralized resource access.

Service Provider Applications

Service providers can utilize the NM-1A-T3/E3 to deliver managed WAN services to customers. Its support for both T3 and E3 circuits enables providers to cater to diverse regional requirements, enhancing service flexibility and customer satisfaction.

Data Center Integration

In data center environments, the NM-1A-T3/E3 facilitates high-capacity interconnections between facilities. Its reliable throughput supports replication, backup, and disaster recovery operations, ensuring data integrity and business continuity.

Hardware Design

The NM-1A-T3/E3 is engineered with robust hardware components to withstand demanding operational conditions. Its design emphasizes longevity and consistent performance, reducing downtime and maintenance costs.

Redundancy Features

When deployed in redundant configurations, the module enhances network resilience. Failover mechanisms ensure continuous connectivity, minimizing the impact of hardware failures or circuit disruptions.

Quality of Service

The NM-1A-T3/E3 supports QoS features within Cisco IOS, enabling administrators to prioritize traffic based on application requirements. This ensures optimal performance for latency-sensitive applications such as VoIP and video conferencing.

Security Integration

Integration with Cisco IOS security features allows the NM-1A-T3/E3 to support secure WAN communications. Features such as access control lists, encryption, and firewall capabilities protect data integrity and confidentiality across WAN links.

Scalability

The NM-1A-T3/E3 provides scalable WAN connectivity, allowing organizations to expand bandwidth as business needs grow. Its compatibility with multiple router platforms ensures seamless integration into existing infrastructures.

Global Enterprises

Multinational corporations benefit from the NM-1A-T3/E3 by establishing reliable WAN links across continents. Its support for international standards ensures interoperability with carriers worldwide, facilitating global connectivity.

Educational Institutions

Universities and research organizations can deploy the NM-1A-T3/E3 to support high-bandwidth applications such as online learning platforms, video lectures, and collaborative research projects.

Government Agencies

Government networks require secure and reliable WAN connectivity. The NM-1A-T3/E3 provides the necessary performance and security features to support mission-critical operations across agencies and departments.

Adaptability

The NM-1A-T3/E3’s dual support for T3 and E3 circuits ensures adaptability to evolving telecommunications standards. Organizations can transition between interfaces without replacing hardware, future-proofing their investments.

Integration with Emerging Technologies

As networking technologies evolve, the NM-1A-T3/E3 remains relevant by supporting integration with MPLS, VPNs, and advanced routing protocols. This ensures compatibility with modern architectures and long-term viability.

Strategic Value

By deploying the NM-1A-T3/E3, organizations gain strategic value through enhanced connectivity, scalability, and cost efficiency. Its future-proof design ensures long-term relevance, supporting evolving business and technological requirements.