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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
LED Interpretation
Page 7-2Processor and Maintenance Circuit Pack LEDs
7
NOTE:
Alarms on the PROCR, PR-MAINT, MEMORY, and PR-MEM MOs are
indicated by the red LED on the Processor circuit pack.
■ Green (test)—the system is running tests on this circuit pack.
NOTE:
On the Standby Processor circuit pack, green means that the
Standby Switch Processing Element (SPE) is not refreshed (that is, it
is in Maintenance or Down Mode).
NOTE:
On the Maintenance circuit pack, the green LED may blink very
faintly once per second. This is the normal operating state of the
Maintenance circuit pack. The faint blink is due to a
once-per-second self-test executed by the Maintenance circuit
pack.
■ Yellow (busy)—this circuit pack is in use. In a high or critical reliability
system, the yellow LED is always off for the Standby Processor and
Memory circuit packs even when in Maint mode.
■ MAJOR ALARMS (red)
■ MINOR ALARMS (red)
■ WRNG (warning) ALARMS (yellow)
■ ACK (acknowledgment) (green)—indicates Major or Minor alarms have
been reported to INADS
■ EMERGENCY TRANSFER (red)—indicates emergency transfer has been
invoked
NOTE:
If the AC power cord is unplugged from the control cabinet, the
emergency transfer feature invokes, however the EMERGENCY
TRANSFER LED (red) is not lit due to loss of AC power.