PTX5000 Packet Transport Router Hardware Guide
120-A DC PDU LEDs
Table 19: 120-A DC PDU LEDs
LED
Color
—One
Green
PDU OK
per power
supply
Red
–
Green
–48 V
—One per
120 A
input
–
—One per
Green
CB ON
input
–
58
Figure 38 on page 58
shows the 120-A DC PDU LEDs.
Figure 38: 120-A DC PDU LEDs
DC PDU
PDU OK
1—
PDU OK
LED
2—
CB ON
LED
Table 19 on page 58
describes the LEDs on the 120-A DC PDU faceplate.
State
On steadily
On steadily
Off
On steadily
Off
On steadily
Off
1 1
2
3
3—
–48 V 120 A
Description
PDU is functioning normally.
PDU has failed.
PDU might be starting up or not receiving any input voltage. The
circuit breakers might be off.
Input is receiving voltage.
Input voltage is not present, or is under –40 V.
Circuit breaker is powered on.
Circuit breaker is not powered on, or the circuit breaker is on but
the input is under –40 V. The circuit breaker might have been
turned off, the host subsystem detected a failure and turned off
the circuit breaker, or the power supply is not receiving any input
voltage.
LED
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