Mechanical Installation
Rev 1.0
28
Mellanox Technologies
grounded and that there is a valid ground connection between the chassis of the appliance and the
rack. Test the ground using an Ohm meter.
4.4
Power Connections and Initial Power On
The UFM-SDN Appliance ships two power supply units. Each supply has a separate AC recepta-
cle. The UFM-SDN Appliance accepts input voltages of 100 - 127 VAC and 200 - 240 VAC for
all possible PS units. The power cords should be standard 3-wire AC power cords including a
safety ground and rated for 15A or higher. The power supplies deliver 750W AC.
Figure 21: Two Power Inlets - Electric Caution Notifications
4.5
Extracting and Inserting the Power Supply Unit
Some national and/or local codes may require IT components to be bonded and exter-
nally grounded (not including the power cord ground). You must follow all national
and local codes when installing this equipment.
After inserting a power cable and turning the appliance on, confirm the green system
status LED light is on.
Do not hot swap the power supply if your appliance has only one power supply. You
must power down the system to replace the power supply unit there is only one PS unit
in the appliance.
The power supply is only hot-swappable if you have a redundant system with two power sup-
plies installed. If you only have one power supply installed, before removing or replacing the
power supply, you must first take the appliance out of service, turn off all peripheral devices
connected to the system, turn off the system by pressing the power button, and unplug the AC
power cord from the system or wall outlet.
CAUTION
Risk of electric shock and
energy hazard. The two PS
units are independent.
Disconnect all power sup-
plies to ensure a powered
down state inside of the UFM-
ACHTUNG
ACHTU
NG
Gafahr des elektrischen
Schocks. Entferrnen des
Netzsteckers elnes
Netzteils spannungs-
frei. Um alle Einhieten
spannungsfrei zu
machen sind die Netzs-
tecker aller Netzteile zu
ATTENTION
Risque de choc et de danger
e’lectriques. Le de’branch-
ment d’une seule alimenta-
tion stabilise’e ne de’branch
uniquement qu’un module
“Alimentation Stabilise’e”.
Pour isoler completement le
module en cause, Il faut
de’brancher toutes les ali-
