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Cisco

Cisco NIM-4E/M | 4x E&M analog | Voice trunk NIM | 2-/4-wire E&M signaling

SKU:NIM-4E/M

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Description

Provides four analog E&M voice interfaces for tie-line connections to PBXs, radio gateways, or legacy voice equipment. Supports common E&M signaling modes for reliable trunk integration.

Features

- Four E&M trunks for compact tie-line density
- Flexible 2-/4-wire operation
- Reliable integration with legacy PBX and radio systems
- Simplifies migration paths from TDM to IP
- Designed for ISR 4000 branch platforms

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: What is an E&M interface used for?
A: E&M is an analog trunk interface commonly used for PBX tie lines and integrations with radio or legacy voice systems.

Q: Does this support 2-wire and 4-wire configurations?
A: Yes, it supports both 2-wire and 4-wire E&M operation depending on configuration.

Q: Is this module for analog phones?
A: No. E&M is a trunk interface; for analog phones or fax endpoints use an FXS module.

Q: Which routers are compatible?
A: ISR 4000 Series routers with available NIM slots; check software release notes for feature support.

Q: Any special licensing required?
A: No specific port license is required; features depend on IOS XE capabilities.

Technical Specifications

- Ports: 4x E&M analog
- Signaling: E&M (supports 2-wire and 4-wire operation)
- Applications: PBX tie lines, radio/voice gateways, legacy interop
- Module type: Network Interface Module (NIM)
- Router compatibility: ISR 4000 Series with NIM slots (e.g., 43xx/44xx)
- Audio path: analog trunk interface for enterprise voice

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