Cisco NM-8CE1T1-PRI 8-Port CE1/T1 PRI Module

Usage Area

The Cisco NM-8CE1T1-PRI is a channelized T1/E1 and PRI network module designed for deployment in Cisco 2600, 3600, and 3700 series integrated services routers. It provides high-density WAN connectivity for enterprise edge and branch office environments, enabling voice and data integration over T1/E1 circuits. The module is used for connecting to PSTN trunks, PBX systems, and carrier-provided leased lines, supporting both channelized and PRI (Primary Rate Interface) operations. Typical applications include VoIP gateways, legacy TDM transport, and consolidated access for remote sites.

Construction Features

• 8-port channelized T1/E1 and PRI network module in a compact form factor for Cisco NM slots.
• Supports both T1 (1.544 Mbps) and E1 (2.048 Mbps) interfaces with software-selectable configuration.
• Each port supports channelized operation for fractional T1/E1 or full PRI mode.
• Designed for direct insertion into Cisco router network module bays, requiring no external power supply.
• Robust metal enclosure ensuring electromagnetic compatibility and heat dissipation.
• Compatible with Cisco IOS feature sets for integrated voice and data services.

Technical Parameters

• Ports: 8 channelized T1/E1/PRI
• Interface Type: T1 (DS1) and E1 (CEPT) with RJ-48 connectors
• Channelization: Supports 24 (T1) or 32 (E1) time slots per port
• PRI Support: ISDN PRI for voice and data
• Data Rate: T1 — 1.544 Mbps; E1 — 2.048 Mbps
• Form Factor: Cisco network module (NM)
• Compatibility: Cisco 2600, 3600, 3700 series routers

Standards & Certification

The module complies with industry standards for T1/E1 telecommunications, including ANSI T1.403 and ITU-T G.703/G.704. It is certified for FCC Part 15 (Class A) and carries CE marking for electromagnetic compatibility in the European market. Cisco IOS software support ensures adherence to ISDN PRI protocols (Q.921/Q.931) for reliable interoperability with carrier networks.