Zhone Technologies / Premisys PRM-880160 CPU-3 XCON Module
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Zhone Technologies / Premisys PRM-880160 CPU-3 XCON Module

This unit ships in the sealed manufacturer's packaging.

Part Number: 880160

The CPU-3 XCON card controls the integrated access system. It initializes the system upon power-up, and runs a self-test on all cards plugged into the chassis at that time. The card polls all cards in the system every second to determine their operating status. The card also processes all incoming operator commands and displays the responses in a series of operator interface screens for each card in the system. The operator interface system (local VT-100 terminal, remote computer, or network management system) connects to the Interface card, which sends these commands to the CPU card for processing. The card's circuitry allows you to cross-connect DS0 time slots between T1 and E1 lines connected to the system WAN cards. Included are test pattern generators for T1 and E1 line test purposes. Finally the card performs master-slave CPU arbitration. In a system with redundant CPU cards, the two CPU cards communicate their status to each other. If the master CPU card fails, the redundant card takes over and becomes the master.

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Zhone Technologies / Premisys IMACS Integrated Multiple Access Communications Server

  • Digital Cross-Connect
  • T1/E1 Conversion
  • Voice Compression
  • Optical HSU Interface to Protection Relays
  • Complete System Management
  • Powerful Diagnostic and Fault Isolation


The Zhone Technologies / Premisys IMACS - with over 50 optional service application modules, three flexible, scalable chassis options, and two firmware platforms - provides an almost limitless combination of services, applications and network interfaces.

The IMACS supports V.35, V.11/X.21, up to 8 HDSL, T1, E1, fractional T1, and fractional E1 interfaces. An integrated digital cross-connect is available to consolidate multiple voice, data, and T1/E1 services. Three chassis models, IMACS 600, 800, and 900, differ in their card capacity and card install options (front, or front and rear). All models support the same range of modular cards, power supplies, and system redundancy options. All IMACS systems can be fully managed either with local craft interface through a VT100, PC, or through the OnLine Element Management System using standard SNMP interfaces.

In addition, IMACS offers a powerful array of integrated network diagnostic and fault isolation capabilities. These include Bit Error Rate Testers, test tone and signaling state generation, digital and analog loopback support, and remote configuration and control. IMACS meets stringent standards criteria, such as NEBS and CE, which means the user can deploy the IMACS almost anywhere in the user's network.

The IMACS is designed to continuously meet the needs of a changing telecommunications landscape. With its advanced patented modular architecture, voice and data services can be deployed quickly and cost effectively. Applications include: POTS (FXS, FXO, E and M), ISDN (BRI and PRI), voice compression (ADPCM and ACELP), VPN access, Internet access, integrated routing capabilities, voice over Frame Relay, Digital Data Networks (DDN), analog private lines, and numerous others. And the IMACS is being used in both public and private, as well as traditional facilities-based and wireless networks.

Product Family: IMACS

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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Zhone Technologies / Premisys IMACS Integrated Multiple Access Communications Server

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