Figure 24: 60-A Dc Psm And 120-A Dc Psm - Juniper PTX5000 Hardware Manual

Copyright © 2017, Juniper Networks, Inc.

Figure 24: 60-A DC PSM and 120-A DC PSM

DC IN OK DC
OUT OK FAULT
PTX5000 High Capacity DC PSM
Each High Capacity DC PSM has 3.8 kW output and accepts two 60-A input feeds. These
PSMs are smaller than the 60-A DC and 120-A DC PSMs, allowing up to eight PSMs to
be installed per PDU, and up to 16 PSMs per chassis. The following is a list of some of
the features of the High Capacity DC PSM:
Single non-isolated output: 12 V @ 3800 W
Two 40 VDC–72 VDC inputs, up to 60 A maximum each
NOTE: Both inputs are required for the PSM to function.
One bias output voltage: +5 V at 2.4-A maximum
Hot-swappable
Self-cooled with monitored, variable-speed fans
I2C fault reporting and control
Figure 25 on page 42 shows the High Capacity DC PSM.
Chapter 4: Power System Components and Descriptions
41