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Cisco NIM-2FXS/4FXOP-RF Voice Interface Card - 2-Port FXS/DID & 4-Port FXO Network Module for 4000 Series Routers
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Product Features
Technical Overview
This voice interface module delivers six total ports configured as two FXS/DID connections and four FXO connections. The FXS/DID ports support standard analog telephone devices and direct inward dialing services, while the FXO ports provide connectivity to public switched telephone network lines or PBX trunk interfaces.
The card operates as a dedicated voice processing resource within the router chassis, offloading voice traffic processing from the main router CPU. This architecture ensures consistent voice quality and maintains data routing performance even during high-volume voice traffic periods.
Key Product Advantages
This Cisco voice module provides specific advantages for organizations maintaining hybrid voice networks that combine traditional telephony with IP-based systems. The balanced port configuration supports diverse deployment scenarios while maintaining Cisco's quality standards for voice transmission.
Flexible Port Mix
The combination of FXS/DID and FXO ports allows simultaneous connection of end-user devices and external trunk lines, supporting complex voice routing requirements without needing multiple interface cards.
- 2 FXS/DID ports for analog devices
- 4 FXO ports for trunk connections
- Single-slot installation
Cisco Ecosystem Integration
Designed specifically for Cisco 4000 Series routers, this module integrates seamlessly with Cisco IOS voice features and management tools, providing consistent configuration experience and support.
- Native IOS command support
- Centralized management
- Proven interoperability
Deployment / Use Cases
The NIM-2FXS/4FXOP-RF voice interface card serves organizations transitioning from traditional telephony to VoIP systems while maintaining legacy equipment. It provides the bridge between analog voice devices and IP-based routing infrastructure.
Common deployment scenarios include small to medium business branch offices requiring both analog phone connections and PSTN trunk access, retail locations with existing analog point-of-sale systems, and healthcare facilities with legacy nurse call or emergency phone systems that must integrate with modern IP telephony.
Branch Office Voice Gateway
Enable analog phone connectivity at remote offices while maintaining centralized IP telephony management and cost-effective PSTN access through FXO trunk connections.
Legacy System Integration
Connect existing analog devices like fax machines, modems, or specialized telephony equipment to modern Cisco router infrastructure without replacing functional hardware.
Physical Profile
The module features a compact design with a weight of approximately 8.32 ounces (235.87 grams), making it one of the lighter voice interface options for Cisco routers. The refurbished condition indicates thorough testing and cleaning, with all components verified for proper operation before resale. The standard Cisco form factor ensures proper fit and thermal management within compatible router chassis slots.
- Weight
- 8.32 oz (235.87 g)
Highlights
- 2 FXS/DID ports for analog telephone device connectivity
- 4 FXO ports for PSTN or PBX trunk line connections
- Compatible with Cisco 4000 Series Integrated Services Routers
- Refurbished condition with full functionality
- 90-day limited warranty coverage
- Lightweight design at 8.32 oz (235.87 g)
- Voice Interface Card (VIC) product type
- Six total ports in balanced configuration
Specifications
| Specifications | |
|---|---|
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | NIM-2FXS/4FXOP-RF |
| Brand Name | Cisco |
| Product Name | 2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module |
| Product Condition | Refurbished |
| Product Type | Voice Interface Card (VIC) |
| Technical Information | |
| Application/Usage | Voice |
| Interfaces/Ports | |
| Total Number of Ports | 6 |
| Interfaces/Ports Details | 2 x FXS/DID Network,4 x FXO Network |
| Physical Characteristics | |
| Weight (Approximate) | 8.32 oz (235.87 g) |
| Miscellaneous | |
| Compatibility | Cisco 4000 Series Integrated Services Routers |
| Warranty | |
| Limited Warranty | 90 Day |
FAQ
What routers are compatible with this Cisco voice interface module?
This NIM-2FXS/4FXOP-RF module is specifically designed for and compatible with Cisco 4000 Series Integrated Services Routers. It integrates directly into available network interface module slots on these router models, providing native voice interface functionality without requiring additional adapters or configuration workarounds.
What is the difference between FXS and FXO ports on this module?
The module includes two different port types: FXS ports connect to end-user analog devices like telephones or fax machines, providing dial tone and battery power. FXO ports connect to external telephone lines or PBX trunks, receiving dial tone from the service provider. This module has 2 FXS/DID ports and 4 FXO ports, offering flexibility for both device connections and trunk line interfaces.
What does 'refurbished' mean for this Cisco voice card?
Refurbished indicates this module has been previously used, then thoroughly tested, cleaned, and verified to meet Cisco's functional specifications. All components are inspected, any worn parts are replaced, and the card undergoes comprehensive testing to ensure reliable performance. The refurbished status makes this a cost-effective option while maintaining compatibility and functionality.
How many total voice ports does this interface card provide?
The Cisco NIM-2FXS/4FXOP-RF provides six total voice ports configured as two FXS/DID ports and four FXO ports. This balanced configuration supports connecting multiple analog devices while maintaining sufficient trunk line capacity for external telephone service connections, making it suitable for small to medium voice deployment scenarios.
| Qty | Price | Available |
|---|
