HP 480-0005-00-15 - Manual (Page 146)

8-6 P/N 480-0005-00-15
Chapter 8: Diagnostics/Maintenance
Monitoring
Faceplate LEDs
LEDs monitor the health of the system; they are the first signal that the unit is not working properly or that an
internal or external error has occurred. LEDs appear on the front of the unit (LED descriptions are detailed in
Chapter 2: Hardware Components).
Check to ensure the correct lighting of each LED and then see Common Symptoms/Problems for troubleshoot-
ing information. If the LEDs are not lighting at all, check the power source to ensure power is being supplied
to the unit.
Inspect Backplane/Chassis
If the backplane becomes physically damaged (i.e., pins become bent), the chassis will need to be returned to
Quintum. This cannot be fixed in the field. Contact your customer service representative for more informa-
tion.
For CMS (14 slot): The four LEDs on the front of the lower swing down panel indicate the status of the four
DC voltage output of the power supplies: +3.3v, +5v, +12v, -12v. When lit, each LED indicates that the
respective voltage is being output. If unlit, the primary cause is power not being supplied to the unit. Ensure
the unit is plugged in and turned on.
DSP Card
DSP Status LEDs. DSP Status LEDs are information only LEDs; they provide a high level look at channel
usage according to a specific DSP bank.
There are eight LEDs on the DSP card:
• DSP Bank 1: Lights for any DSP card activity on that bank.
DSP Bank 1a: Lights when DSP card activity is more than 50%.
• DSP Bank 2: Lights for any DSP card activity on that bank.
DSP Bank 2a: Lights when DSP card activity is more than 50%.
• DSP Bank 3: Lights for any DSP card activity on that bank.
DSP Bank 3a: Lights when DSP card activity is more than 50%.
• DSP Bank 4: Lights for any DSP card activity on that bank.
DSP Bank 4a: Lights when DSP card activity is more than 50%.