Cisco NM-32A 32 Ports Expansion Module
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Cisco NM-32A 32 Ports Plug-in Network Expansion Module Refurbished

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Part Number#: NM-32A
List Price was: $923.08
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Short Description:
NM-32A 32 Ports Plug-in High-Density Asynchronous Network Expansion Module WAN | Made by Cisco | Refurbished
Product Condition:
Warranty provided by ALLHDD.COM:
90 Days
Product Details of the Cisco NM-32A Network Expansion Module

In the dynamic landscape of networking, the Cisco NM-32A 32 Ports Plug-in Network Expansion Module stands out as a crucial component for expanding network capabilities. This comprehensive guide aims to provide an in-depth understanding of the features, installation process, benefits, and considerations associated with the Cisco NM-32A, all presented in simple English for accessibility.

Understanding the Cisco NM-32A

The Cisco NM-32A is a plug-in network expansion module designed to enhance the capacity and functionality of Cisco routers. With 32 ports available, this module facilitates the seamless expansion of network connections, making it a valuable asset for businesses experiencing growing demands on their network infrastructure.

Importance of Network Expansion Modules

Network expansion modules play a crucial role in the scalability of network systems. As businesses grow and demand more from their networks, expansion modules like the Cisco NM-32A provide a scalable solution, allowing for increased connectivity without the need for a complete network overhaul.

32 Ports for Increased Connectivity

The standout feature of the Cisco NM-32A is its 32 ports, offering a substantial increase in connectivity options. This allows businesses to accommodate more devices and users on their network, supporting the evolving needs of a dynamic environment.

Hot-Swappable Design

The hot-swappable design of the Cisco NM-32A is a convenient feature that enables users to replace or add modules without powering down the entire system. This ensures minimal downtime during maintenance or expansion activities.

Compatibility with Cisco Routers

The Cisco NM-32A is specifically designed for compatibility with Cisco routers. This ensures seamless integration into existing Cisco network infrastructures, providing a hassle-free solution for network expansion.


The primary benefit of the Cisco NM-32A is its ability to scale network infrastructure. With 32 additional ports, businesses can easily accommodate more devices and users, adapting to the ever-changing demands on their networks.

Cost-Effective Expansion

Instead of investing in an entirely new networking system, the Cisco NM-32A offers a cost-effective solution for expanding network capacity. This is particularly advantageous for businesses looking to maximize their existing infrastructure investments.

Minimal Downtime

The hot-swappable design of the Cisco NM-32A contributes to minimal downtime during maintenance or expansion activities. This ensures that businesses can make necessary changes to their network without disrupting critical operations.

More Information

The Cisco NM-32A 32-port Network Expansion Module is an expansion module for Cisco routers that provides 32 additional asynchronous ports for use with serial WAN connections. This module is typically used in situations where a Cisco router does not have enough built-in serial ports to support the number of WAN connections required.

The part module supports both synchronous and asynchronous serial connections and has 32 serial ports that can be configured for different types of serial connections, such as T1, E1, and V.35. It supports data rates of up to 2.048 Mbps per port and is compatible with a wide range of Cisco routers, including the Cisco 2800, 2900 and 3900 series ISR routers.

The module is designed to plug directly into the router's expansion slot and is powered by the router, it does not require an external power supply. Additionally, it supports advanced data services such as HDLC, PPP, and Frame Relay, as well as legacy data services such as X.25 and Bisync.

In summary, the Cisco part is a great solution for businesses that need to expand their router's serial port capacity and support more WAN connections.

High Performance

The Cisco NM-32A 32 Ports Network Expansion Module is a network module that can be installed in a Cisco Integrated Services Router (ISR) to provide additional Ethernet ports. The specific performance of the module will depend on the router it is installed in and the configuration of the network. However, here are some general points on the performance of the Cisco part:

  • The module provides 32 additional Ethernet ports, each capable of 10/100Mbps or 10/100/1000Mbps.
  • The module supports auto-negotiation and auto-MDIX, which allows for easy connection to a wide variety of devices.
  • The module is fully integrated with the Cisco IOS Software, which allows for easy management and configuration of the ports.
  • The module is supported on a variety of Cisco ISR platforms, including the Cisco 2900, 3900, and 4000 series.

It's important to note that the performance of the module will also depend on the ISR it is installed in. The performance of the ISR will also play a role in the overall performance of the module. Additionally, the performance of the module can be affected by factors such as network congestion, traffic patterns, and the number of devices connected to the module.

Exceptional Reliability

The Cisco NM-32A 32-port network expansion module is designed for use with the Cisco 2800 and 3800 series Integrated Services Routers. It provides additional Ethernet ports for connecting devices to the network and is known for its exceptional reliability and performance.

Some of the features that contribute to the exceptional reliability of the Cisco part include:

  • The hot-swappable design allows for easy replacement or upgrade of the module without disrupting the operation of the router.
  • Redundant power and cooling systems help ensure that the module continues to operate even in the event of a failure.
  • The module is designed to meet strict industry standards for quality and reliability and is extensively tested to ensure that it can withstand the demands of a mission-critical network environment.
  • The module is also designed to be backward compatible with other Network Modules, which allows you to use the same hardware across different generations of routers.

The Cisco part is well suited for large-scale deployments that require high port density and high-speed connectivity, such as data center environments.

Main Information about this Cisco NM-32A
  • Manufacturer: Cisco
  • Model Number or SKU# NM-32A
  • Product Type: Expansion Module
Interfaces / Ports for Asynchronous Module
  • 4 x DB-68 Female
  • 32 x Via Octal Cable Asynchronous Serial
Performance of 32 Ports Module
  • Connectivity Media: Shielded Cable
  • Data Transfer Rate: 134 Kbps Full-duplex
  • Application/Usage: Data Networking
Network Module Status Indicator
  • Status LED for each serial port
Environmental Conditions
  • Operating Temperature: 32°F (0°C) to 104°F (40°C)
  • Non-operating Temperature: -13°F (-25°C) to 158°F (70°C)
  • Humidity: 5% to 95% Relative Humidity
Additional Information: Modular Router Solutions
  • Dialup Remote Access
  • Serial & Legacy Concentration
  • VPN & Firewall Solutions

Protocols Supported

  • Full Cisco IOS support by release 11.2 and 11.3

Physical Limitation of Serial Modules per Chassis

  • Cisco 3640: 3
  • Cisco 3620: 1

Overall, the Cisco NM-32A 32 Ports Plug-in Network Expansion Module is a valuable tool for businesses seeking to expand and optimize their network infrastructure. Its 32 ports, hot-swappable design, and compatibility with Cisco routers make it a versatile solution for scaling network capabilities. By following the installation guide and considering compatibility and power requirements, businesses can seamlessly integrate the Cisco NM-32A, ensuring a scalable, efficient, and future-proofed networking environment.

Product Condition:
Warranty provided by ALLHDD.COM:
90 Days

About Refurbished Products

Refurbished products are typically refurbished by an Original Manufacturer or an affiliate of the manufacturer or 3rd party facility. This product may have minor blemishes due to normal product usage and doesn't necessarily come with documentation and software unless indicated, but has been well tested and generally has never had any defects.


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What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

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