Cisco NM-8A/S 8-Port Async/Sync Serial, 1 Year Warranty and Free Ground Shipping NM8A/S

Description:

The Cisco NM-8A/S 8-Port Async/Sync Serial Network Module is a router expansion module designed to provide multiple asynchronous and synchronous serial interfaces for Cisco modular routers used in enterprise and industrial networking environments. It delivers eight serial ports that support connectivity to modems, terminals, serial devices, and WAN communication equipment for remote access and serial data communication. Commonly installed in Cisco modular routers deployed in enterprise branch offices, telecom networks, and industrial communication systems, this module enables flexible serial connectivity and device integration. Network administrators, IT engineers, and system integrators use this module for serial device connectivity, remote terminal access, network infrastructure expansion, and replacement of legacy serial interface modules.

Applications:

The Cisco NM-8A/S network module is used in enterprise and industrial networking environments where multiple serial connections are required for remote access, terminal server applications, and integration with legacy communication equipment. It enables connectivity between routers and devices such as modems, serial consoles, industrial controllers, and network management systems. Typical deployments include enterprise branch networks, telecom infrastructure, network management platforms, and industrial communication environments where reliable asynchronous or synchronous serial communication is necessary.

Technical Specifications:

• Manufacturer Part Number (MPN): NM-8A/S
• Product Type: Serial Network Module
• Series: Cisco Network Module (NM Series)
• Total Ports: 8
• Interface Type: Asynchronous / Synchronous Serial
• Connector Type: Smart Serial / RJ45 (via compatible cables)
• Supported Protocols: PPP, HDLC, X.25, Frame Relay
• Data Transfer Rate: Up to 128 Kbps per asynchronous port (varies by configuration)
• Module Type: Router Expansion Module
• Compatible Devices: Cisco Modular Routers (including Cisco 2600, 3600, and 3700 Series)
• Installation Type: Router Network Module Slot
• Management: Integrated with Cisco IOS

Common Replacements:

• Cisco NM-16A Async Serial Network Module
• Cisco HWIC-8A Async Serial Interface Card
• Cisco NIM-8A Serial Interface Module