The Marathon 3K is one of a family of industry-leading Integration Multiplexers offering cost-effective solutions for small to enterprise-sized networks.

Features

• Integrates legacy data with LAN and voice/fax traffic over a common private leased line, ISDN, or public frame relay link for substantial cost savings
  
• Locally-attached frame relay devices can transparently pass traffic to the public frame relay network, protecting your capital equipment investment
  
• Two built-in voice/fax channels
  
• New 8 Kbps ClearVoice™ technology for telephone conversations with toll quality while consuming minimal bandwidth
  
• Flash memory simplifies network upgrades
  
• A primary link can be established based on time-of-day configurations for economic remote access
  
• Modular 3-slot design provides for optional Integrated Router Module, voice/fax and legacy data expansion
  
• Synchronous channel speeds up to 64 Kbps for superior performance in SNA/SDLC networks
  
• Asynchronus port switching and contention allow remote users to share resources
  
• Supports PC-based Netman® network management system
  
• One-year hardware waranty
  

Specification Overview

The Marathon 3K combines built-in voice/fax and legacy data integration with optional LAN integration and routing capabilities for convenient branch-office internetworking. An economic three-slot modular design allows for an additional voice/fax module, legacy data expansion or an Integration Router Module.

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Marathon 3K utilizes either private leased lines or public frame relay services for cost-effective internetworking. ^(TM)MicroBand ATM cell relay allows optimal throughput for integrated traffic over private leased lines. A MicroBand ATM port can be configured for wide-area link backup.

For public frame relay access, the Marathon 3K allows integrated communications traffic to travel over a common PVC to its destination. Multiple frame relay links can be configured to segment traffic for access to multiple public frame relay carriers. The Marathon 3K also allows locally-attached frame relay devices, including those that support RFC 1490 encapsulation, token ring and SNA applications, to transparently pass traffic to the public frame relay network.

The Marathon 3K supports ClearVoice technology on its built-in voice ports, based on the International Telecommunications Union's (ITU) G.729 standard for wide-area voice compression. A new, more powerful digital signal processor and advanced algorithm provide toll quality voice at 8 Kbps compression rates. Silence suppression and other bandwidth efficiencies reduce the average consumed bandwidth by more than half.

The Marathon 3K handles virtually all legacy data protocols, including DEC VT100, H-P ENQ/ACK and SNA/SDLC. For LAN traffic, an optional Integration Router Module provides robust LAN routing capabilities. High-speed legacy data and LAN compression provide optimal bandwidth efficiency.