Cisco 2-port FXO Network Interface Module for ISR 4000 Series
Brand: Cisco · SKU: NIM-2FXO · MPN: NIM-2FXO · Category: Components
The Cisco NIM-2FXO is a 2-port FXO (Foreign Exchange Office) voice interface module designed for Cisco ISR 4000 Series routers, enabling connection to the public switched telephone network (PSTN) for backup and hybrid voice deployments. It features two analog ports with RJ-11 connectors. This module allows routers to make and receive phone calls over the PSTN, supporting features like Caller ID, Call Waiting, Call Transfer, and three-way conferencing. It is ideal for small office phone system connectivity, failover solutions for VoIP systems, and remote branch office integration into corporate voice systems. It supports signaling protocols including FXO, FXS, and E&M, and features echo cancellation and acoustic shock protection on some devices.
Specifications
| MTBF | 1,200,000 hours |
|---|---|
| Voltage | 5-12V |
| Module Type | 2-port Network Interface Module - FXO (Universal) |
| Compatibility | Cisco ISR 4000 Series (e.g., 4321, 4331, 4351, 4431, 4451) |
| Network Ports | 2x FXO (Universal) ports |
| DRAM Memory Size | 512 MB |
| Caller ID Support | Yes |
| Flash Memory Size | 1 GB |
| Power Consumption | 4.5W (less than 2.5 watts mentioned elsewhere) |
| Interface Connector | RJ-11 |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Signaling Protocols Supported | FXO, FXS, E&M |
| Warranty | 365 days mentioned by one seller for refurbished unit. |
| Weight | 0.5 lbs |
| Dimensions | 5.4 x 7.3 x 1.6 inches (13.72 x 18.542 x 4.064 cm) |
Key Features
The Cisco NIM-2FXO is a compact telephony interface module providing two FXO ports for integrating analog PSTN lines into Cisco ISR 4000 Series routers. It is essential for ensuring voice continuity, supporting VoIP failover, and integrating legacy phone systems into modern IP communication networks for enterprise and branch office environments.
Frequently Asked Questions
Is this product genuine OEM?
Yes, this Cisco 2-port FXO Network Interface Module for ISR 4000 Series (NIM-2FXO) is 100% genuine Cisco hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
What warranty is included?
This Cisco 2-port FXO Network Interface Module for ISR 4000 Series includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
How long does shipping take?
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Can I return this product?
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Is the Cisco 2-port FXO Network Interface Module for ISR 4000 Series compatible with my system?
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the NIM-2FXO.
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