
Interpreting LEDs
Interpreting LEDs
The
LED1
LED2
LED3
LED4
FigureLED functions differ depending on whether the board is configured with a T1/PRI interface, an E1/PRI interface with CRC4, or an E1/PRI interface without CRC.
T1/PRI Interface
On cards with a T1/PRI interface, the LEDs for each port function as follows:
LED | Color | Meaning if the LED is ON... |
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1 | Green | Clock is synchronized. |
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2 | Green | Physical layer is active. |
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3 | Yellow | Your ISDN provider is sending an RAI alarm to the |
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| board. |
118 | Interphase Corporation |