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Cable Drawing Conventions

Figure 3-1 shows the conventions used in representing the signal paths in the LS2020 I/O interface connectors and data cables illustrated in this chapter.

Low-Speed Connectors and Data Cables

• X.21 fantail connector - see the section "."
  
  
• RS-449 fantail connector - see the section "."
  
  
• V.35 fantail connector - see the section "."
  
  
• DSU/CSU control ports on V.35 and RS-449 fantails - see the section "."
  
  
• Internal data cable for connecting a low-speed access card to a fantail - see the section " ."
  
  
• Data cable for connecting an X.21 fantail to an external X.21 device - see the section " ."
  
  
• Data cable for connecting an RS-449 fantail to an external RS-449 DCE device - see the section "."
  
  
• Data cable for connecting two LS2020 switches via their RS-449 fantail interfaces, or for connecting an RS-449 fantail to an external RS-449 DTE device - see the section "."
  
  
• Data cable for connecting a V.35 fantail to an external V.35 DCE device - see the section "."
  
  
• Data cable for connecting two LS2020 switches via their V.35 fantail interfaces, or for connecting a V.35 fantail to an external V.35 DTE device - see the section "."

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