Power And Grounding; Power Supply Modules - Edge-Core ECS5610-52S Installation Manual

4

Power Supply Modules

Power and Grounding

This chapter focuses on the switch power supplies, how to intall them, and how to
power-on the switch. Connecting the switch to ground is also covered.
This chapter includes these sections:
◆
"Power Supply Modules" on page 29
◆
"Grounding the Chassis" on page 31
◆
"How to Connect to AC Power" on page 31
The switch supports hot-swappable power supply units (PSUs). You can install up
to two PSUs with matching airflow direction in the switch. The PSUs operate in a
load-sharing mode and provide 1+1 redundancy.
Note: 1+1 redundancy is a system where a switch power supply is backed up by
another switch power supply in a load-sharing mode. If one power supply fails, the
other power supply takes over the full load of the switch.
The switch provides two AC power supply module options, which are listed below:
◆
ECS5610-52S-ACPWR (front-to-back airflow)
◆
ECS5610-52SR-ACPWR (back-to-front airflow)
Caution: The switch includes plug-in power supply and fan tray modules that are
installed into its chassis. All installed modules must have a matching airflow
direction. That is, all modules must have a front-to-back (F2B) airflow direction, or
all modules must have a back-to-front (B2F) airflow direction. The airflow direction
of PSUs and fan trays is indicated by labels on the modules.
The AC Power Supply Modules require power from an external AC power supply
that can provide 100 to 240 VAC, 50-60 Hz. A standard AC power socket is located
on the rear panel of the PSU. The power socket is for the AC power cord.
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