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Home Networking Networking Accessories Cisco NM-1A-OC3SML-1V ATM CES Network Module - 1-Port Singlemode Long Reach OC-3 ATM Interface

Cisco NM-1A-OC3SML-1V ATM CES Network Module - 1-Port Singlemode Long Reach OC-3 ATM Interface

Cisco NM-1A-OC3SML-1V ATM CES Network Module - 1-Port Singlemode Long Reach OC-3 ATM Interface

Brand:

Cisco

Specifications

Product Overview:

The Cisco NM-1A-OC3SML-1V is a powerful 1-port singlemode long-reach OC-3 ATM Network Module with Circuit Emulation Services (CES), designed for Cisco modular routers including the 2600, 3600, and 3700 series. This module supports OC-3 (155 Mbps) ATM connectivity over singlemode fiber up to 40 kilometers, making it an ideal solution for long-distance WAN links, metropolitan-area networks, and enterprise backbones.
With Circuit Emulation (AAL1), the NM-1A-OC3SML-1V allows legacy TDM voice services such as T1/E1 or PBX traffic to be reliably transported over a modern ATM network. It supports a wide range of ATM protocols including AAL1, AAL5, UNI, PNNI, ILMI, and OAM, and integrates seamlessly with Cisco IOS for advanced QoS, PVC management, and network monitoring.
Whether you're supporting real-time voice, video, or data over a wide area network, the NM-1A-OC3SML-1V ensures dependable, scalable performance for mission-critical deployments.

Specifications:

Brand: Cisco
Model: NM-1A-OC3SML-1V
Interface Type: 1 x OC-3 (STM-1) Long Reach Singlemode Fiber
Connector Type: SC singlemode optical interface
Data Rate: 155 Mbps
Wavelength: 1310 nm
Maximum Reach: Up to 40 km over singlemode fiber
ATM Protocols Supported: UNI, PNNI, AAL1 (for CES), AAL5, ILMI, OAM
Circuit Emulation: Yes, via AAL1 for T1/E1 legacy service support
Compatible Cisco Routers: Cisco 2600, 3600, 3700 Series (NM slot required)
Power Requirements: Supplied by host router
Cisco IOS Support: Yes (requires compatible IOS version)

Features:

High-Speed WAN Access – 155 Mbps OC-3 ATM for robust backbone or edge connectivity
Long-Distance Reach – Supports up to 40 km over singlemode fiber with SC connector
Advanced ATM Capabilities – Includes support for traffic shaping, OAM, ILMI, and PVCs
Circuit Emulation Support (CES) – Transports legacy TDM traffic (T1/E1) over fiber ATM
Cisco IOS Integration – Unified software management with complete visibility and control
Enterprise & Carrier-Grade – Engineered for reliability in high-demand telecom and enterprise applications

Why Choose Cisco NM-1A-OC3SML-1V?

Long Reach Capability – Designed for extended fiber runs up to 40 km without repeaters.
Seamless Legacy Integration – Circuit Emulation enables voice TDM support on ATM.
Cost-Effective Backbone Expansion – Delivers scalable OC-3 ATM over existing fiber infrastructure.
Comprehensive Protocol Support – Ensures compatibility with ATM switches and services.
Trusted Cisco Quality – Backed by Cisco’s reputation for secure, enterprise-grade networking hardware.

Features

Brand:

Cisco

Warranty:

1 Year

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