Juniper PTX5000 Hardware Manual page 436

grounding and site wiring requirements for the PTX5000, see
and Lug Specifications" on page 164
• Check the status of the PDUs by issuing the show chassis environment pdu command.
• Make sure that the DC power cables are arranged so that they do not obstruct access to other router
components.
• Routinely check the status LEDs on the PDU and PSM faceplates and the craft interface to verify
that the power system is functioning normally.
During normal operation of the 60-A and 120-A DC PDU and PSM:
• The green PDU OK LEDs light to indicate that the PDUs are functioning normally.
• Each green DC IN LED on a 60-A DC PDU lights when the input is receiving source DC power.
• Each green –48 V 120 A LED on a 120-A DC PDU lights when the input is receiving source DC
power.
• Each SW ON LED on a 60-A DC PDU lights when the input power switch is on.
• Each CB ON LED on a 120-A DC PDU lights when the circuit breaker is on.
• The green INPUT OK LED on a power supply module lights when the PSM is receiving voltage.
• The green OUTPUT OK LED on a power supply module lights when the circuit breaker on the
PDU is on.
During normal operation of the High Capacity DC PDU and PSM:
• The green PDU OK LEDs light to indicate that the PDUs are functioning normally.
• Each green PSM LED, PSM_0 through PSM_7 on a PDU, lights when the input is receiving
appropriate source DC power.
• The green INPUT1 OK LED on a power supply module lights when the input 1 of the PSM is
receiving voltage.
• The green INPUT2 OK LED on a power supply module lights when the input 2 of the PSM is
receiving voltage.
• The green OUTPUT OK LED on a power supply module lights when power supply output is
functioning normally.
For more information about the PDU and PSM LEDs, see
LEDs" on page 99 and
Site Electrical Wiring Guidelines
and
"PTX5000 DC Power Supply Module LEDs" on page
"PTX5000 Chassis Grounding Cable
.
"PTX5000 DC Power Distribution Unit
105.
418