Sun Microsystems Netra t 1120, Service Manual

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Chapter 1 Description 1-5
1.2.2 Netra t 1125
The front panel has five LEDs:
POWER–Green
This indicator is illuminated at all times when the system is On.
SYSTEM–Green
This indicator is off (or reset) during power up procedures and is
illuminated whenever UNIX is running and the alarms driver is
installed. It is reset by a hardware Watchdog timeout or, alternatively,
whenever the user-defined Alarm 3 is asserted.
ALARM 1–Amber
Illuminated whenever the user-defined Alarm 1 is asserted.
ALARM 2–Amber
Illuminated whenever the user-defined Alarm 2 is asserted.
SPARE–Amber
For future enhancement.
FIGURE 1-6
Netra t 1125 System LEDs
1.3 System Unit Components
TABLE A-1
on page A-3 lists the system unit components by part number. A brief
description of each listed component is also provided.
Note – Part numbers listed in
TABLE A-1
on page A-3 are correct as of the Service
Manual publication date but are subject to change without notice. Consult your
authorized Sun sales representative or service provider to confirm a part number
prior to ordering a replacement part.
ALARM 1
ALARM 2
POWER SYSTEM
ON STBY
Power
switch