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Types of Terminal Emulation

• 3270 - 3270 products
  Terminal Emulation 3270. It is used to connect terminals to mainframes. Data is encoded using EBCDIC.
• TN3270 (Telnet 3270 )-
  A terminal Emulation protocol. Data is encoded using ASCII and blocks groups of characters for transmission. Regular Telnet sends each character in its own data packet. A client sends to TCP port 23.
  Does not support LU 1 or LU3 print sessions.
• TN3270E -
  Defined in RFC 1647. Like TN3270 with additional functionality. Does support LU 1 or LU3 print sessions.
• 3770 RJE - 3770 products
  used to connect terminals to mainframes for batch job processing
• 5250 -
  used to connect to AS/400 systems.
• TN5250 (Telnet 250 ) -
  A client sends to TCP port 23.
• TN3287 - ( IBM 3287 printer sessions)

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