Use this topic when you need to replace a redundant ac-power switch.
The
redundant ac-power switch FRU
assembly includes the
redundant ac-power switch and
the input power cables. They should all be replaced together.
These
instructions
assume that a redundant ac-power switch has
been removed and the one or two nodes that were connected to it are
powered
off.
To replace a redundant ac-power switch,
complete the following steps:
- Attach each
of the two mounting plates to the redundant ac-power switch using
three M3 Torx T8 head screws. Position the mounting face, as shown
in Figure 1, on the
side of the redundant ac-power switch that
contains the output power sockets.
Figure 1. Attaching the mounting
plates
- Using the labels provided, label each
end of the two redundant ac-power switch input
power cables. Unless the configuration is changing, the labels are
the same
as those on the cables removed with the old redundant ac-power switch.
Label the rack power distribution end "Power source <name>,
outlet <id>" to redundant ac-power switch <location> <MAIN
| BACKUP> input. For example: "Power source D2, outlet
4 to redundant ac-power switch pos
7 MAIN input".
- Label the redundant ac-power switch end" redundant ac-power switch <location> <MAIN
| BACKUP> input from Power source <name>, outlet <id>".
- Connect the input power cables to the redundant ac-power switch.
You want to connect the cables now, because it is difficult to access
the
input power sockets on the redundant ac-power switch when
it is installed in a rack.
- Connect
the main input power cable to the redundant ac-power switch.
- Connect the backup input power cable to the redundant ac-power switch.
- Secure both the redundant ac-power switch input
cables, as shown in Figure 2,
using the clips of the redundant ac-power switch.
Figure 2. Power cable clips
- Install the redundant ac-power switch in
the rack. The four “C” clips for mounting the unit should already
be positioned
in the rack mounting bar.
- Position the redundant ac-power switch in
the rack, pushing the cables through to the front of the rack. Mount
in place
using the four M6 screws.
- Connect the redundant ac-power switch power
input cables to the site power.
- Determine
a suitable cable route from the redundant ac-power switch to
the power distribution units.
- Route the
main input power cable of the redundant ac-power switch to
the specified power distribution unit, and connect it.
- Route the backup input power cable of the redundant ac-power switch to
the specified power distribution unit, and connect it.
- Verify that the redundant ac-power switch power
cables are tidy. Ensure that they do not obstruct other equipment
and are
tied in place where necessary.
- Test the redundant ac-power switch before
connecting it to the 2145 UPS-1U,
using MAP 5340: Redundant ac power verification.
- Connect the one or two 2145 UPS-1U units
that are powered by this redundant ac-power switch.
The power cables should still be plugged into the 2145 UPS-1U units.
- Connect the other end into the output power
sockets on the front
of the redundant ac-power switch.
- Check the labels on the cables to see which
socket they should
be connected to.
- If the uninterruptible
power supply units
do not power on automatically, power them on by pressing the power
button
for five seconds.
- Power
on the one or two SAN Volume Controller nodes
connected to this redundant ac-power switch.
