Ex9253 Power System; Ac Power Supply Description - Juniper EX9253 Hardware Manual

RELATED DOCUMENTATION
Clearance Requirements for Airflow and Hardware Maintenance for an EX9253 Switch | 53

EX9253 Power System

IN THIS SECTION
AC Power Supply Description | 27
AC Power Cord Specifications for an EX9253 Switch | 29
AC Power Supply Specifications for EX9253 Switches | 31
DC Power Supply Description | 32
DC Power Supply Specifications for EX9253 Switches | 33
Power Requirements for EX9253 Components | 34
Calculating System Thermal Output | 34
EX9253 switches uses either AC or DC power supply (see
32). The switch can support up to six power supplies installed at the rear panel of the chassis in slots
labeled PSM0 through PSM5.
CAUTION: Do not mix AC and DC power supplies in the same chassis.

AC Power Supply Description

Each AC power supply weighs approximately 3.4 lb (1.54 kg) and consists of a handle, an ejector lever,
an AC appliance inlet, a fan, and an LED to monitor the status of the power supply.
28 shows the power supply and
WARNING: The switch is a pluggable type A equipment installed in a restricted-access
location. It has a separate protective earthing terminal (sized for M5 hex screws)
Figure 13 on page 28
Figure 14 on page 28 shows the power supply components.
and Figure 16 on page
Figure 13 on page
27