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Cisco NIM-24A 24-Port Async Serial Network Interface Module - RS-232 Plug-in for Data Networking
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Product Features
Technical Overview
This network interface module delivers 24 independent RS-232 serial ports in a single plug-in form factor. The asynchronous serial interfaces support standard serial communication protocols for data transfer between network devices and serial endpoints.
The NIM-24A integrates directly into compatible Cisco Integrated Services Routers, expanding their connectivity options without requiring external serial concentrators or additional power supplies. The module's design ensures proper thermal management and electrical compatibility within the router chassis.
This section brings together practical product details such as Application/Usage, Total Number of Ports, Connector Type, Interfaces/Ports Details, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The Cisco NIM-24A provides concentrated serial connectivity in a space-efficient package, reducing the need for multiple standalone serial adapters. Its plug-in design simplifies installation and maintenance compared to external serial solutions.
These strengths make the product easier to deploy and manage in real environments, especially where reliability, usability, and day-to-day operational continuity matter. Notable benefits include 24-port density, RS-232 legacy support, Direct router integration, Compact form factor.
Deployment / Use Cases
This serial interface module is ideal for network environments requiring connectivity to legacy serial devices, industrial control systems, point-of-sale terminals, and other equipment using RS-232 interfaces. It enables serial device integration into modern IP-based networks through Cisco routing platforms.
Common deployment scenarios include retail environments with serial receipt printers, manufacturing facilities with serial-based industrial equipment, financial institutions with legacy banking terminals, and telecommunications installations requiring serial console access to network devices.
Legacy System Integration
Connect older serial-based equipment to modern network infrastructure without replacing functional devices.
- POS systems
- Industrial controllers
- Serial terminals
Network Console Management
Provide serial console access for network device configuration and troubleshooting through router integration.
- Device configuration
- Out-of-band management
- Emergency access
Physical Profile
The NIM-24A measures 1.25 inches in height, 3.50 inches in width, and 6.70 inches in depth, making it compact enough to fit within Cisco router chassis while providing substantial port density. The plug-in module form factor ensures secure installation and proper alignment with router backplane connectors.
- Width
- 3.50" (88.90 mm)
- Depth
- 6.70" (170.18 mm)
- Height
- 1.25" (31.75 mm)
Highlights
- 24 RS-232 serial ports in a single module
- Plug-in form factor for Cisco Integrated Services Routers
- Compatible with 4451-X, 4221, 4321, 4331, 4351, 4431, and 4451 router models
- Compact dimensions: 1.25" H × 3.50" W × 6.70" D
- Designed for data networking applications
- Asynchronous serial communication support
- Manufactured by Cisco Systems, Inc.
- Country of origin: China
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | NIM-24A |
| Brand Name | Cisco |
| Product Name | 24-Port Async Serial NIM |
| Product Type | Expansion Module |
| Technical Information | |
| Application/Usage | Data Networking |
| Interfaces/Ports | |
| Total Number of Ports | 24 |
| Connector Type | RS-232 |
| Interfaces/Ports Details | 24 x RS-232 Serial |
| Physical Characteristics | |
| Form Factor | Plug-in Module |
| Height | 1.25" (31.75 mm) |
| Width | 3.50" (88.90 mm) |
| Depth | 6.70" (170.18 mm) |
| Miscellaneous | |
| Compatibility | Cisco Integrated Services Router: 4451-X 4221 4321 4331 4351 4431 4451 |
| Country of Origin | China |
FAQ
What Cisco routers are compatible with the NIM-24A module?
The NIM-24A is compatible with Cisco Integrated Services Routers including the 4451-X, 4221, 4321, 4331, 4351, 4431, and 4451 models. This compatibility ensures the module integrates directly with these routing platforms without requiring additional adapters or external power supplies.
What type of connectors does the NIM-24A provide?
The module provides 24 RS-232 serial connectors. RS-232 is a standard serial communication interface commonly used for connecting computers to peripheral devices such as modems, printers, and industrial equipment. These connectors support asynchronous serial data transmission.
What is the form factor of this network interface module?
The NIM-24A is a plug-in module designed to install directly into compatible Cisco router chassis. This form factor provides integrated connectivity without external cabling between the router and serial devices, simplifying installation and reducing desk space requirements.
What are the physical dimensions of the NIM-24A module?
The module measures 1.25 inches (31.75 mm) in height, 3.50 inches (88.90 mm) in width, and 6.70 inches (170.18 mm) in depth. These compact dimensions allow the module to fit within Cisco router chassis while providing 24 serial ports in a space-efficient design.
| Qty | Price | Available |
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