Cisco Cisco Digital Service Access Node (DSAN) 8210 Installation Guide

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Chapter 4    Troubleshooting 
 
 
 
20 
4035812 Rev B 
Troubleshooting Common Problems 
The problems most likely to arise when operating the DAXI fall into the following 
categories: 
 
Unit does not power up at all 
 
Unit powers up but provides no ASI output to DSAN 
 
Unit provides ASI output but a video or audio channel is missing 
The information in this chapter may help in identifying and resolving these common 
problems. For further assistance if needed, please contact your local customer 
support representative. See Customer Support Information (on page 23) for contact 
information. 
 
No Power-Up 
If the PWR LED is OFF, the DAXI is not receiving the +12 VDC power needed to 
operate. Possible causes include: 
 
Power supply unplugged from wall outlet 
 
Power supply disconnected from back of DAXI 
 
Blown circuit breaker or fuse affecting wall outlet 
 
Defective +12 VDC power supply 
Visually inspect for an unplugged or disconnected power supply and verify that the 
wall outlet has AC power by plugging in a lamp or other simple AC appliance. 
If these steps do not clearly identify the cause of the problem, suspect a defective DC 
power supply. Refer the unit to your local customer support center for servicing. See 
Customer Support Information (on page 23) for contact information. 
 
No ASI Output 
When power is applied to the DAXI, the PWR LED should come on immediately. 
The ASI LED should come on about 100 seconds later, after the DAXI has booted up 
and is ready to provide output. The ASI LED will turn on and a transport stream 
will be output even if no audio or video input is attached. 
If the ASI LED remains off, the most likely cause is an internal problem with the 
DAXI. Refer the unit to your local customer support center for servicing. See 
Customer Support Information (on page 23) for contact information.