HP 480-0005-00-15 - Manual (Page 149)

P/N 480-0005-00-15 8-9
Chapter 8: Diagnostics/Maintenance
CPU Card - Rear
Link LEDs. The CPU card contains four Link and associated TX/RX Status LEDs, viewable from the rear of
the chassis, to provide a high level indication of the system operational mode and chassis activity. Each Link
LED relates to one Ethernet line on the rear of the cards.
Power Supply (CMS, 14 slot)
Each power supply contains a power status LED. The LED lit green indicates power input; red indicates that
input/output failed or there is a power fault. If the power status LED is off, it indicates there is no AC/DC
input, check the AC/DC power source and ensure the power supply is fully seated.
Units with DC power, there are two LEDs: Power and Alarm. When the Power LED is lit green, it indicates
the power supply is functioning correctly. If the Power LED is lit, the Alarm LED will be unlit.When the
Alarm LED is lit red, it indicates that input/output failed or there is a power fault. If the Alarm LED is lit, the
Power (LED) will be unlit.
If power is getting to the unit, replace the unit with a new power supply. If required, the chassis may run on
one supply until a new power supply is installed, depending upon the configuration.
For AC, power supply P/N is 520-5009-00; for DC, power supply P/N is 520-5020-00.
Power Supply (CMS240 and CMS960)
Units with AC power have one LED, the Power LED indicates whether the power supply is functioning cor-
rectly. There are two colors for the LED: red and green. Green indicates AC input; red indicates that input/out-
put has failed or there is a power fault.
Units with DC power, there are two LEDs: Power and Alarm. When the Power LED is lit green, it indicates
the power supply is functioning correctly. If the Power LED is lit, the Alarm LED will be unlit.When the
Alarm LED is lit red, it indicates that input/output failed or there is a power fault. If the Alarm LED is lit, the
Power (LED) will be unlit.
For AC, power supply P/N is 423-5024-00-00 for DC, power supply P/N is 423-5025-00-00.
Alarms
Alarms help you identify where a specific problem is occurring with the Tenor CMS unit. Through the Alarm
Manager, you can read a description of the problem, and isolate where the problem is occurring. Verify all
severity 1 alarms first; these alarms indicate that the unit is in critical condition and the entire system is
affected.
You are able to review alarms via Command Line Interface (CLI). See Chapter 7: System Alarms for specific
information about obtaining and reading alarms.
Active Call Status
You can monitor the status of active calls via CLI’s monitor calls command. You can use the calls command
from the MasterChassis (MC), Slot (SL), Device (DV), or Digital Interface (DI) CLI options. See Chapter 4:
Getting Started with Command Line Interface (CLI) for more information about the calls command.