Hughes 9450 Series User Manual page 12

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Introduction
4
3004128-0001 Revision C
The 9450 IDU has a four RJ-45 connector with 2 LEDs for each
port with the following functions:
Green/Red bicolor: Green indicates Link active; Red indicates a
power over Ethernet PD device is connected and is being
powered by the IDU. When both functions are active, it will
appear Orange in color.
Green: Traffic indicator