Cisco NIM-4BRI-NT/TE 4-Port ISDN BRI Network Interface Module

The Cisco NIM-4BRI-NT/TE is a high-performance 4-port ISDN Basic Rate Interface (BRI) Network Interface Module designed for Cisco ISR 4000 Series routers. It supports both NT (Network Termination) and TE (Terminal Equipment) modes, providing flexible connectivity for voice, data, and video applications over ISDN lines. This module enables reliable WAN connectivity, backup, and integrated services in a compact single-wide NIM form factor.

Advantages

With four independent BRI ports, the NIM-4BRI-NT/TE offers cost-effective ISDN connectivity for branch offices and remote sites. It supports multiple signaling protocols including Euro-ISDN, NI-1, DMS-100, and 5ESS, ensuring compatibility with various ISDN networks worldwide. The module is hot-swappable and managed via Cisco IOS CLI or SNMP, simplifying deployment and maintenance. Echo cancellation enhances voice call quality, making it ideal for integrated voice and data solutions.

Suitable for

• Branch office connectivity requiring ISDN backup or primary WAN links
• Voice and data integration over ISDN for small to medium businesses
• Video conferencing and telephony applications using BRI lines
• Remote site connectivity where DSL or cable is unavailable

Key specifications

• Module Type: Network Interface Module (NIM)
• Number of Ports: 4
• Interface Type: ISDN Basic Rate Interface (BRI)
• ISDN Roles: NT (Network Termination) and TE (Terminal Equipment)
• Data Rate per B-channel: 64 kbps
• ISDN Channels: 2B+D (two 64 kbps B-channels, one 16 kbps D-channel)
• Signaling Protocols: Euro-ISDN (ETSI), NI-1, DMS-100, 5ESS
• Compatibility: Cisco ISR 4000 Series (4321, 4331, 4351, 4431, 4451)
• Form Factor: Single-wide NIM slot
• Hot-Swappable: Yes
• Management: Cisco IOS CLI, SNMP
• Maximum Power Consumption: 20 W
• Echo Cancellation: Yes
• LED Indicators: Status per port
• Operating Temperature: 0 to 40°C
• Storage Temperature: -20 to 65°C

Recommendations

For organizations relying on ISDN for critical communications, the Cisco NIM-4BRI-NT/TE delivers robust performance and flexibility. Ensure your router supports NIM modules and verify signaling protocol compatibility with your service provider. This module is an excellent choice for extending the life of ISDN infrastructure in hybrid networks.