Upgrading To The High Capacity Dc Power System - Juniper PTX5000 Hardware Manual

Upgrading to the High Capacity DC Power System

Before you upgrade a PTX5000 to the High Capacity DC power system from a normal-capacity power
system:
• Ensure that the No Redundant Power for System alarm is not displayed when you run the show chassis alarms
operational-mode CLI command.
If the No Redundant Power for System alarm is displayed, see
System Power Zones" on page 182
zones for normal-capacity PSMs. Modify your hardware configuration so that the PTX5000 power
system is redundant. Once redundant power is configured and the alarm is no longer displayed, you
can begin the upgrade procedure.
• Ensure that the PTX5000 is running Junos OS release 14.1 or later.
To upgrade to the High Capacity DC power system:
1. Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect the strap to
one of the ESD points on the chassis.
2. Remove the existing power supply modules (PSMs) from one of the power distribution units (PDUs).
See "Replacing a PTX5000 60-A or 120-A DC PSM" on page 441
Removing the PSMs raises the following alarms:
• No Redundant Power for FPC 0-7
• No Redundant Power for Rear Chassis
• No Redundant Power for Fan 0-2
3. Remove the PDU from which PSMs have been removed and install a High Capacity DC PDU. See
"Replacing a PTX5000 High Capacity DC PDU" on page 442
4. Install the High Capacity PSM sleeve into the PTX5000. See
Sleeves" on page 457
5. Install the PSMs in the new PDU and power on the PDU. See
DC PSM" on page 447
Now there are two different types of PDUs in the chassis, resulting in the Mix of PDUs alarm being
raised. And there are two different types of PSMs in the chassis, resulting in the Power Manager Non
Operational alarm being raised. However, as long as the PDU is operational, one PDU and associated
PSMs can fulfill the power requirements of the PTX5000. In this configuration, the No Redundant Power
for System alarm is not displayed when you run the show chassis alarms command.
for more information about PTX5000 redundancy and power
for details.
for details.
"Understanding Normal-Capacity Power
for details.
for details.
"Installing the High Capacity PSM
"Replacing a PTX5000 High Capacity
454