SKU: 4058946921

Cisco 2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module

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Description

Cisco 2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface ModuleUnlock flexible voice connectivity within Ciscos 4000 Series Integrated Services Routers (ISRs) with this high density Network Interface Module (NIM). The module combines 2 ports of FXS FXS E DID and 4 FXO ports into a single, compact card that slots into Cisco 4000 Series ISRs with available NIM bays. Built for modern hybrid voice deployments, it lets you connect analog phones or Direct Inward Dialing (DID) capable devices while preserving your IP

Unlock flexible voice connectivity within Cisco’s 4000 Series Integrated Services Routers (ISRs) with this high-density Network Interface Module (NIM). The module combines 2 ports of FXS/FXS-E/DID and 4 FXO ports into a single, compact card that slots into Cisco 4000 Series ISRs with available NIM bays. Built for modern hybrid voice deployments, it lets you connect analog phones or Direct Inward Dialing (DID) capable devices while preserving your IP telephony architecture for SIP trunks, unified communications, and branch-office resilience. Designed for scalability, reliability, and seamless integration with Cisco’s voice ecosystem, this NIM is a cornerstone for a cost-efficient, future-ready voice gateway.

  • Flexible telephony in one module: 2 ports that can be configured as FXS, FXS-E, or DID alongside 4 FXO ports provide versatile analog and voice gateway capabilities for small offices to distributed sites.
  • High-density, scalable expansion for Cisco 4000 Series: Integrates into the ISR’s NIM slots to maximize port density without expanding the chassis footprint, enabling progressive growth of voice services as your network evolves.
  • DID support and hybrid voice integration: The FXS ports support Direct Inward Dialing configurations, enabling direct dialing into your private networks, while FXO ports connect to PSTN trunks or legacy circuits for reliable mixed-mode operation.
  • Designed for reliability and ease of management: Part of the Cisco 4000 family, this NIM is designed for long-term operation with straightforward IOS XE-based management and consistent configuration across Cisco voice platforms.
  • Seamless interoperability with Cisco voice ecosystems: Optimized to work with Cisco Unified Communications Manager (CUCM), Cisco Unified Border Element (CUBE), and other Cisco voice services, providing a cohesive, end-to-end solution for enterprise voice.

Technical Details of Cisco 2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module

  • Product type: Network Interface Module (NIM) for Cisco 4000 Series Integrated Services Routers (ISR).
  • Ports: 2 x FXS/FXS-E/DID ports; 4 x FXO ports; all analog interfaces for POTS and telephony lines.
  • Platform compatibility: Cisco 4000 Series ISR chassis with available NIM slots; supports integration across multiple modules in up to three NIM slots on the chassis.
  • Signaling and features: Provides traditional analog telephony interfaces with support for DID on FXS ports; suitable for hybrid voice deployments combining IP telephony with legacy PSTN access.
  • Management and compatibility: Configured and managed through Cisco IOS XE software, enabling consistent voice service provisioning alongside data routing and security features on Cisco ISRs.

How to install Cisco 2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module

  • Power down the Cisco 4000 Series ISR or verify hot-swappable compatibility, then locate an available NIM slot suitable for the module.
  • Align the NIM’s edge connectors with the backplane and gently insert the card into the slot until the latches engage securely.
  • Secure the module, re-enable power if you powered down, and confirm that the IOS XE detects the new NIM in the chassis.
  • Enter the appropriate voice port configurations for FXS/FXS-E/DID and FXO, including dial peers, voice ports, and line groups to route calls as required by your deployment.
  • Test the setup end-to-end by provisioning test extensions, placing inbound and outbound calls, and validating interoperability with SIP trunks and any connected PSTN lines.

Frequently asked questions

Q: What capabilities does the Cisco 2-Port FXS/FXS-E/DID and 4-Port FXO Network Interface Module provide?

A: It adds versatile analog telephony interfaces to Cisco 4000 Series ISRs, delivering 2 FXS/FXS-E/DID ports and 4 FXO ports for a hybrid voice gateway solution that supports both DID-enabled analog phones and legacy PSTN connections.

Q: Which Cisco platforms are compatible with this NIM?

A: This module is designed for Cisco 4000 Series Integrated Services Routers with available NIM slots, enabling flexible expansion and consolidated voice and data services within a single router chassis.

Q: Can the FXS ports handle Direct Inward Dialing (DID)?

A: Yes. The FXS ports on this module can be configured to support DID, providing direct inward dialing paths for convenient call routing into your private network.

Q: How many NIM slots does the Cisco 4000 Series support, and how does this module fit in?

A: The Cisco 4000 Series ISRs support multiple NIM slots (up to three in many configurations); this module is designed to occupy one NIM slot, expanding your analog telephony capacity while preserving space for additional modules as your network grows.

Q: What management interface is used to configure this NIM?

A: Configuration and management are performed through Cisco IOS XE, ensuring consistency with other Cisco voice and data services and allowing centralized administration alongside routing, security, and IP telephony features.

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SKU: 4058946921

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