• Cisco NIM-2BRI-NT/TE with 2x ISDN BRI S/T ports and green circuit board
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Cisco

Cisco NIM-2BRI-NT/TE | 2x ISDN BRI (S/T) ports | NT/TE selectable | 2B+D per port | Voice/Data gateway

NIM-2BRI-NT/TE

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Description

Two-port ISDN BRI S/T module providing flexible NT or TE operation per port for voice gateway or data backup scenarios. Supports 2B+D per port, making it ideal for small-site PSTN interconnects and resilient WAN dial-backup.

Features

- Dual-mode NT/TE operation per port for maximum deployment flexibility
- Two BRI S/T ports to connect PBXs, ISDN terminals, or PSTN via NT1
- Carrier-grade ISDN signaling with robust clocking and loopback support
- Ideal for voice gateway, survivability, and dial backup use cases
- Seamless integration with router call control and QoS policies

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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Technical Specifications

FAQs

Technical Specifications

- Ports: 2x ISDN BRI (S/T), 8P8C (RJ-45) connectors
- Mode: Software-selectable NT or TE per port
- Channels: 2B+D per port (2x 64 kbps B + 16 kbps D)
- Use cases: Voice gateway to PSTN, ISDN data backup, small-site telephony
- Standards: ITU-T I.430/ETS 300 012 (S/T interface)
- Clocking: Network or internal
- Voice resources: Requires PVDM4 DSP on the host router for voice/media features
- Compatibility: NIM slot on ISR 4000 Series platforms
- Cabling: ISDN BRI S/T (twisted pair) to NT1/ISDN equipment
- Management/Monitoring: Loopback and alarm reporting via router IOS-XE

FAQs

Q: Is this module S/T or U interface?
A: It provides S/T interfaces. If connecting to a U-interface from the telco, use an external NT1.

Q: What routers is it compatible with?
A: Routers with NIM slots in the ISR 4000 Series (e.g., 4221, 4321, 4331, 4351, 4431, 4451-X).

Q: Do I need DSP resources for voice?
A: Yes, voice features require PVDM4 DSPs on the host router. Data-only BRI backup does not.

Q: How many B-channels are available?
A: Each port supports 2 B-channels (2x 64 kbps) plus a 16 kbps D-channel.

Q: Does it require additional licensing?
A: Base module operation does not require a separate module license, but certain voice features may require appropriate router feature licenses.

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