Interphase-tech RAS Communications Controller 5536 Manuale Utente Pagina 142

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Interpreting LEDs
122 Interphase Corporation
The following table describes the board status when the
sequence of LEDs appears as follows:
4 Red Off
LED1 LED2 LED3 LED4 Meaning
On On Off Off Board is operational.
On Off On Off Your E1/PRI line requires CRC4. Select
the CRC4 option. (See Setting Up ISDN
Port Properties on page 80.)
On Off Off Off Your E1/PRI line requires CRC4. Select
the CRC4 option. (See Setting Up ISDN
Port Properties on page 80.)
Off Off Off Off Either no electrical signal is on the
E1/PRI line, or your ISDN provider is
sending an AIS alarm to the board.
Make sure your cable is plugged in
correctly.
LED Color State must be...
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