Installation guide

4.Connecting to a Power Source and Turning On the Power
26 AlterPath OnBoard Installation Guide
• A switch that is connected to multiple devices (not recommended)
• A dedicated Ethernet port on a blade managing multiple blades’
service processors
4. Connecting to a Power Source and Turning
On the Power
The OnBoard comes with either one or two power supplies.
When the OnBoard has two power supplies, connect each power supply to a
separate power source for redundancy in case one power source fails. For
example, connect to one commercial circuit and to one uninterruptible power
supply (UPS). The power sources must be independent of each other and must
be controlled by separate circuit breakers.
The AC models of the OnBoard have one or two universal power inlets and
are shipped with one or two power cords that are appropriate for the region
where the OnBoard is to be used. See "To Connect AC Power Inlets to an AC
Power Source and Turn OnBoard Power On” for the procedure. The following
figure shows an AlterPath OnBoard 1040 with two AC power inlets.
Figure 2-5: Universal AC Power Inlets and Power Switches
The following figure illustrates the same AlterPath OnBoard model as in
Figure 2-5 connected to two separate power sources.
Universal power inlets
Power switches