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Telecommunications

TUTORIALS EXTERNAL LINKS/TOOLS
  1. Public Switched Telephone Network (North America)
  2. X.25 (grandfather of all telecom protocols)
  3. Frame Relay
  4. Switched Multi-megabit Data Services (SMDS)
  5. Integrated Services Digital Network (ISDN)
  6. Digital Signalling System
  7. n-Carrier systems
    T-Carrier T1 T2 T3 T4  
    J-Carrier J1 J2 J3 J4  
    E-Carrier E1 E2 E3 E4  
  8. Optical Cabling
    OC3, OC12, OC48, OC192
  9. SONET
  10. Synchronous Digital Hierarchy (SDH)
  11. xDSL
  12. Signalling System 7
  13. Asynchronous Transfer Mode (ATM)