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Cisco

Cisco NM-8CE1T1-PRI | 8x T1/E1 Channelized + ISDN PRI Network Module | RJ-48C | CSU/DSU | T1: 1.544M ESF/SF B8ZS/AMI | E1: 2.048M G.704 HDB3 | NxDS0 (1–24/31)

SKU:NM-8CE1T1-PRI

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Description

High-density 8-port channelized T1/E1 network module for routers needing multiple ISDN PRI trunks or fractional data circuits. Each port is independently selectable for T1 or E1 operation, with integrated CSU/DSU per port, RJ-48C interfaces, and full support for PRI and NxDS0 channelization. Designed for voice gateways, PBX consolidation, and branch/core WAN aggregation over T1/E1 services.

Features

- Eight channelized T1/E1 ports for high-density deployments
- PRI and fractional NxDS0 support per port
- Integrated CSU/DSU simplifies telco turn-up
- Standards-based framing and coding for global interop
- RJ-48C interfaces for direct demarc connectivity

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: Can all eight ports be used for PRI simultaneously?
A: Yes, the module supports PRI on multiple ports concurrently, subject to router performance and IOS feature support.

Q: Are ports independently selectable for T1 or E1?
A: Yes. Each port can be configured for T1 or E1 and for PRI or channelized data.

Q: Is a separate CSU/DSU needed?
A: No. Each port includes an integrated CSU/DSU.

Q: What cable and impedance are required?
A: RJ-48C twisted pair: 100Ω for T1, 120Ω for E1. Use a balun for 75Ω E1 when required.

Q: Does it require additional licenses?
A: No module license is required; capabilities depend on the router’s IOS image.

Technical Specifications

- Ports: 8 x T1/E1, channelized (independent per-port configuration)
- ISDN PRI: Supported on all ports
- Per-port mode: Selectable T1 or E1
- Line rate: T1 1.544 Mbps; E1 2.048 Mbps per port
- Timeslots: T1 1–24; E1 1–31; Nx56/Nx64 kbps
- Framing: T1 ESF or SF (D4); E1 G.704 (CRC4/non-CRC)
- Line coding: T1 AMI or B8ZS; E1 HDB3
- Connectors: 8 x RJ-48C; 100Ω (T1) / 120Ω (E1) UTP; 75Ω E1 via balun
- Integrated CSU/DSU per port with selectable clocking
- Applications: Multi-PRI voice gateways, dense fractional WAN, migration between T1 and E1
- Alarm/status: LOS/LOF/AIS/RAI (via router IOS)
- Form factor: Network Module (requires router NM slot)

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