Figure 2-7. MLX-20L System Programming Console Overlay
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To Central Office or Serving Facility
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C O LInes
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C O Line Protector
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Network Interface
Console and DSS Lights
The red and green lights (LEDs) next to each of the 20 line buttons on the 4424LD+ and MLX-20L
console show the status of the line/trunk options. LEDs on the DSS show the status of features
programmed on extensions.
Console Lights
The green and red LEDs next to each button on the console display the status of the line/trunk
option that is being programmed. For example, when you select Pools from the Lines Trunks
menu, the red LED is off if the selected line is not in a pool and on if the line is in a pool. Appendix
C in Feature Reference provides a table that shows the default LED status for line/trunk options.
System Programming Console
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Console and DSS Lights
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