Table 95: Troubleshooting Pdu Leds - Juniper PTX5000 Hardware Manual

PTX5000 Packet Transport Router Hardware Guide

Table 95: Troubleshooting PDU LEDs

LED State
on Off
–48 V 120 A
the 120-A DC
PDU
on the Off
DC IN
60-A DC PDU
DC IN on the Off
60-A DC PDU
through Off
PSM_0
on the
PSM_7
High Capacity
DC PDU
540
Condition
The input is not receiving voltage or is
under –40 V.
The input voltage is not present or is
under –40 V.
The input voltage is not present or is
under –40 V.
Input voltage is not present, or is under
–20 V.
Solution
Verify that the customer-site circuit breakers
are switched on. If the customer-site circuit
breakers are off, switch them on.
Verify that the circuit breakers on the 120-A DC
PDU are switched to the on position (
Verify that the input power tray is receiving
power within the supported voltage range.
If the customer-site circuit breakers are switched
on but the input power tray is not receiving
power, switch off the customer-site circuit
breakers, and reinstall the DC power source
cables.
Verify that the customer-site circuit breakers are
switched on and that the input power tray is
receiving power within the supported voltage
range.
If the customer-site circuit breakers are off,
switch them on.
If the customer-site circuit breakers are switched
on but the input power tray is not receiving
power, switch off the customer-site circuit
breakers, and reinstall the DC power source
cables.
Verify that the customer-site circuit breakers are
switched on and that the input power tray is
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 power tray is not receiving power,
switch off the customer-site circuit breakers,
and reinstall the DC power source cables.
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.
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