Juniper PTX5000 Hardware Manual page 617

Table 89: Troubleshooting PDU LEDs
LED State
PSM_0 through Off
PSM_7 on the
High Capacity
DC PDU
SW ON on the Off
60-A DC PDU
(Continued)
Condition
Input voltage is not present,
or is under –20 V.
The LED might be off for one
of the following reasons:
•
The input power switches
are off.
•
The host subsystem
detected a problem and
turned off the input
power switches.
•
The input is not receiving
any voltage.
Solution
Verify that the customer-site circuit breakers are
switched on and that the input terminals are
receiving power within the supported voltage range.
•
If the customer-site circuit breakers are off,
switch them on.
•
If the customer circuit breakers are switched on
but the input terminals are not receiving power,
switch off the customer-site circuit breakers, and
reinstall the DC power source cables.
1. Verify that the input power switches on the 60-A
DC PDU are switched to the on position (|) .
2. If the input power switches on the 60-A DC PDU
are switched to the on position (|), verify that the
voltage is above –40 V.
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