Brand: Cisco · SKU: NIM-2FXS/4FXOP · MPN: NIM-2FXS/4FXOP · Category: Components
The Cisco NIM-2FXS/4FXOP is a Network Interface Module designed for Cisco Integrated Services Routers (ISRs), specifically the 4000 Series. It provides a combination of two Foreign Exchange Station (FXS) ports and four Foreign Exchange Office (FXO) ports, offering versatile solutions for integrating analog voice and fax services into digital communication networks. It features an onboard DSP for TDM analog voice services, supporting features like echo cancellation (128ms), VAD, CNG, and T.38 fax relay. The module supports online insertion and removal (OIR). It is compatible with Cisco IOS XE Release 16.5 or later for the 4000 series routers. The FXS ports can serve as FXS-E/DID.
| DSP | Integrated onboard DSP |
|---|---|
| FXO Ports | 4 |
| FXS Ports | 2 (also listed as 2-Port FXS/FXS-E/DID) |
| Form Factor | Single-wide NIM Slot |
| Total Ports | 6 |
| Compatibility | Cisco 4000 and 4300/4400 Series ISRs |
| Protocol Support | SCCP, SIP, MGCP, H.323 |
| Audio Codec Support | G.711, G.729a, G.726, G.723, iSAC (transcoding), iLBC (planned) |
| Software Compatibility | IOS XE 16.5 or later |
| Connectivity Technology | Wired (Analog Voice over TDM) |
| Warranty | Standard Warranty (varies by seller/region) |
| Weight | 0.52 lb (236 g) |
| Dimensions | Single-wide NIM Slot Form Factor |
The Cisco NIM-2FXS/4FXOP is a high-performance voice network interface module for Cisco 4000 Series ISRs. It uniquely combines 2 FXS ports (for connecting analog phones/devices) and 4 FXO ports (for connecting to external PSTN lines/trunks) in one module. This allows for flexible and reliable integration of legacy analog telephony infrastructure with modern IP-based communication systems, supporting features like faxing over IP (T.38) and onboard echo cancellation.
Yes, this Cisco Voice Module NIM-2FXS/4FXOP (NIM-2FXS/4FXOP) is 100% genuine Cisco hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Cisco Voice Module NIM-2FXS/4FXOP includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
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.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the NIM-2FXS/4FXOP.