Troubleshooting; Wan Link And Power-Up Issues - Cisco 678 Installation And Operation Manual

Troubleshooting

This chapter provides information about product issues in the Cisco 600 series
CPE.

WAN Link and Power-Up Issues

When you power up the CPE, this is the normal sequence of events:
So under normal conditions, the ALARM light should be off within six seconds
of powering up the CPE, and within one minute the WAN-LNK light should
become solid.
If the CPE cannot establish communication with the service provider equipment,
the WAN-LNK light will go off and the CPE will wait 10 seconds. The
WAN-LNK light will start blinking when the CPE tries again to establish
communication.
If, after repeated attempts to establish communication, the WAN-LNK light
continues blinking, turn the power off and then on. If the WAN-LNK light still
does not become solid within one minute, call your service representative.
78-11190-01
The ALARM light comes on within 5 seconds, flashes for half a second, then
•
goes off.
Between 1 and 10 seconds after the ALARM light goes off, the WAN-LNK
•
light starts blinking, indicating that the CPE is attempting to establish
communication with the central office equipment. After communication is
established, the WAN-LNK becomes solid.
C H A P T E R
Cisco 600 Series Installation and Operation Guide
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