Digital Hierarchy Data Communications

Digital Hierarchy

• - Provides an open industry forum for the discussion and resolution of multiple technology integration and SONET interoperability issues.
  
• - All you wanted to know about T1's but were afraid to ask.
  
• - Webopedia definition and links about T1.
  
• - Sponsored by the Alliance for Telecommunications Industry Solutions and accredited by ANSI for interoperability standards.
  
• - Defines SONET and SDH, and provides references to appropriate standards organizations.
  
• - Offering T-1/T-3 information, glossary, FAQs, reference, Technical reports, news, messageboard, ISP lists and links.
  
• - DCB's T1 repeater for customer-owned cable.
  
  

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