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Cisco NIM-4FXSP 4-Port Voice Interface Card - FXS - FXS-E - DID for 4000 Series Routers
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Product Features
Technical Overview
This voice interface card delivers four independent FXS/DID network ports, each supporting Foreign Exchange Station (FXS), FXS-E, and Direct Inward Dialing (DID) functionalities. The module operates as a hot-pluggable network interface module (NIM), ensuring minimal disruption during installation or maintenance cycles in live environments.
Built to Cisco's hardware standards, the NIM-4FXSP maintains consistent signal quality and compatibility across the supported Cisco 4000 Series router portfolio. The card interfaces directly with the router's internal bus, enabling centralized management and configuration through Cisco IOS software for streamlined administration.
Key Product Advantages
The NIM-4FXSP offers a cost-effective solution for integrating analog voice devices into modern IP-based networks, preserving investments in legacy equipment while advancing toward converged communications. Its multi-interface support provides flexibility for diverse telephony requirements within a single module.
Unified Voice Management
Centralize control of analog and digital voice endpoints through the Cisco IOS interface, reducing administrative overhead and simplifying troubleshooting across the network.
- Single-pane management
- IOS-based configuration
- Integrated diagnostics
Legacy Infrastructure Support
Connect traditional analog devices like phones, faxes, and modems directly to your Cisco router, eliminating the need for separate analog telephone adapters or gateways.
- FXS for analog endpoints
- DID for direct inbound calls
- Backward compatibility
Deployment / Use Cases
The Cisco NIM-4FXSP is ideal for branch offices, retail locations, healthcare facilities, and educational campuses that require reliable analog telephony alongside IP communications. It enables seamless migration strategies by supporting existing analog devices during network modernization projects.
Common deployment scenarios include connecting emergency phones in elevators or stairwells, fax lines for legal or medical documentation, analog phones in conference rooms, and legacy alarm systems that rely on traditional phone lines. The module's compatibility with Cisco 4000 Series routers makes it suitable for both small to medium-sized business deployments and enterprise edge implementations.
Highlights
- 4-port FXS/DID voice interface card for Cisco 4000 Series routers
- Supports FXS, FXS-E, and DID analog telephony interfaces
- Hot-pluggable network interface module (NIM) design
- Enables direct connection of analog phones, fax machines, and modems
- Centralized management through Cisco IOS software
- Preserves investments in legacy analog voice infrastructure
- Ideal for branch offices and mixed analog/IP environments
- Compact form factor for easy router integration
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | NIM-4FXSP= |
| Brand Name | Cisco |
| Product Name | 4-Port Network Interface Module - FXS, FXS-E and DID |
| Product Type | Voice Interface Card (VIC) |
| Technical Information | |
| Application/Usage | Voice |
| Interfaces/Ports | |
| Total Number of Ports | 4 |
| Interfaces/Ports Details | 4 x FXS/DID Network |
| Miscellaneous | |
| Compatibility | Cisco 4000 Series Integrated Services Routers |
FAQ
What router models are compatible with the NIM-4FXSP?
The NIM-4FXSP is specifically designed for compatibility with Cisco 4000 Series Integrated Services Routers. This includes models within the 4000 Series family that support network interface module expansion slots. Always verify specific router model compatibility through Cisco's official documentation before deployment.
What types of devices can I connect to the FXS ports?
The FXS ports on this module support standard analog telephony devices including traditional analog phones, fax machines, modems, and alarm systems. Each port provides the necessary line power and signaling to operate these endpoints directly, eliminating the need for separate analog telephone adapters in your network topology.
What is the difference between FXS and DID on this module?
FXS (Foreign Exchange Station) interfaces connect to end-user devices like analog phones, providing line power and dial tone. DID (Direct Inward Dialing) allows external callers to reach specific internal extensions directly without going through an operator or auto-attendant. The NIM-4FXSP supports both functionalities on its four ports, offering flexibility for different telephony requirements within your organization.
Can this module be installed while the router is running?
Yes, the NIM-4FXSP is designed as a hot-pluggable network interface module, meaning it can be inserted or removed from a compatible Cisco 4000 Series router without powering down the system. This feature minimizes service disruption during installation, maintenance, or replacement procedures in production environments.
| Qty | Price | Available |
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