Cisco NM-1A-OC3-POM ATM OC-3c/STM-1 Network Module

Equipment Overview

The Cisco NM-1A-OC3-POM is a network module designed for ATM OC3 connectivity within Cisco NM series routers and switches. Its primary purpose is to provide a single ATM OC-3c/STM-1 interface for enterprise WAN deployments, enabling high-speed data transfer over optical networks. This module is suited for integrating legacy ATM infrastructure into modern Cisco-based systems, supporting both campus and service provider edge environments. It is a modular component that facilitates seamless network expansion without replacing the entire chassis.

Main Parameters

• Model: Cisco NM-1A-OC3-POM
• Interface: One ATM OC-3c/STM-1 port
• Optical Slot: Single POM (SFP) slot for fiber optic transceivers
• Compatibility: Cisco NM series network modules (e.g., 2600, 3600, 3700 platforms)
• Data Rate: 155 Mbps (OC-3/STM-1)
• Network Type: Asynchronous Transfer Mode (ATM)
• Form Factor: Network module for chassis integration

Key Advantages

This module is selected for enterprise projects requiring reliable ATM connectivity with a compact, single-slot design. The POM slot offers flexibility in choosing optical transceivers, simplifying spare parts management and reducing deployment complexity. It is a cost-effective solution for maintaining legacy ATM links within a Cisco-centric network architecture. Its proven compatibility with established NM-series hardware ensures stable operation in mission-critical environments.

Compatibility & Integration

The Cisco NM-1A-OC3-POM integrates with Cisco routers supporting NM slots, including Cisco 2600, 3600, and 3700 series. It adheres to ATM Forum standards for OC-3c/STM-1 interfaces, ensuring interoperability with standard ATM switches and carrier equipment. The module is designed for plug-and-play installation, requiring minimal configuration changes within Cisco IOS environments.