Ptx1000 Dc Power Supply Description - Juniper PTX1000 Hardware Manual

The fan in the power supply provides port-to-FRU airflow, which is also known as airflow out (AFO). A
power supply with the label AFO or a gold-colored handle denotes port-to-FRU airflow.
CAUTION:
Power to the PTX1000" on page
page 103, and
NOTE: For more information about power system redundancy, see
Redundancy" on page

PTX1000 DC Power Supply Description

The DC power supplies in the PTX1000 (see
hot-removable and hot-insertable field-replaceable units (FRUs) that you can install without powering off
the router or disrupting the routing function. The PTX1000 has four power supplies.
CAUTION:
Figure 19: PTX1000 FRU Panel
1 Power supplies (4)
—
To avoid electrical injury, carefully follow instructions in
82,
"Removing a Power Supply from the PTX1000" on page
21.
Figure 19 on page 41
Do not mix AC and DC power supplies in the same chassis.
"Installing a Power Supply in a PTX1000" on
"PTX1000 Component
and Figure 20 on page
2 Fan modules (3)
—
"Connecting AC
101.
42) are
41