3 Solving Problems
Process. The LEDs can be used for
Problems involving HEART BEAT
•If the HEART BEAT LED is lit, it indicates the firmware has encountered an unrecoverable error. Verify that the firmware has had time to load properly and that processes are successfully completed. Call Tech Support if the problem persists.
Problems involving PHY LINK LINK
•The ISDN circuit is not connected to the PRI card. If the PHY LINK LED is Off it indicates the absence of valid LEC circuit signaling. The ISDN circuit is not connected to the PRI card properly. Look for missing or broken wiring from the LEC distribution facility, malfunctioning interconnect cabling (broken wires, bad connectors, incorrect connector installation, etc.).
Recommended action: contact your LEC representative.
Problems involving RED ALARM LED
The PRI card is experiencing a high error rate or is not configured properly. If the RED ALARM LED is lit, it indicates an improper receive signal or no receive signal. Check the configuration of the PRI card with the PRISTATUS command at the controller. Contact your LEC representative or
Problems involving YELLOW ALARM LED
The device at the other end of the network is in red alarm. It may not be receiving the signal from the PRI card. Contact your LEC representative.
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