Power Supply Installation - Toshiba DK14 Installation And Maintenance Manual

DK424 Installation

Power Supply Installation

Power Supply Installation
The Base and Expansion Cabinets are shipped from the factory without the power supply installed.
The DK424 cabinets use the same power supply (RPSU280 and/or RPSU424) as the DK280.
Note
➤ To install power supplies in cabinets of new or installed systems
1. Remove the power supply from its box. The box should also contain a plastic bag with two
jumper plugs for the power supply DKSUB or DKSUE connector. An AC power cord and the
power supply mounting screws are provided with the KSU cabinet.
2. Make sure that the front and right side covers are removed from the cabinet (see
3. Slide the power supply into the right side of the cabinet so that its four mounting holes align
with the four cabinet mounting holes (see
wires are positioned between the FG wire holder and the power supply.)
Note
4. Plug the DC OUT cable plug into the DC OUT connector on the power supply. (The plug has
a guide key on it to ensure that it is plugged in correctly.)
5. Secure the FG wire spade lug to the power supply with the FG screw.
6. Secure the power supply to the cabinet with the four provided screws.
7. If the cabinet is the Base Unit, a standalone Remote Expansion Cabinet, or the first in a stack
of Remote Expansion Cabinets, plug the Base Jumper Plug into the "DKSUB" jumper
connector on the power supply (see
8. If the cabinet is an Expansion Unit (DKSUE), plug the jumper plug that does not have a wire
connected into the "DKSUE" jumper connector.
Important!
9. See
10. Install power supplies in all cabinets, using Steps 1~9.
11. Install the Base and optional Expansion Cabinets, ground wiring, AC and reserve power
cabling, and PCB cabling per the
Note
5-8
RPSU280 and RPSU424 are fit, form, and functionally the same. They can be
interchanged and mixed in DK280 and DK424 systems.
The backplane FG wires are not safety grounds: they are required for proper system CO
line operation.
The power supply with the "DKSUB" jumper plug (plug with wire) installed is the
master and has On/Off control over all other power supplies, which are designated
as slaves. If the master power supply is turned Off or On, all other power supplies
will automatically turn Off or On. (Individual power supplies must be turned On.)
Power supplies that have the "DKSUE" jumper plugs (plug without wire) installed
will not control other power supplies, but can be turned Off or On individually with
their own On/Off switch. (The master power supply must be on and the intercabinet
"Data" ribbon cable must be installed to allow a slave power supply to be turned
On.)
Figure 5-3 to ensure that the power supply is properly installed.
Power Supply testing procedures are provided in the Fault Finding chapter, which should
be referred to if it is suspected that the power supply does not work properly.
)
Figure 5-3 . (Make sure that the two backplane FG
)
Figure 5-3 .
"Recommended Installation Sequence" on Page
Figure 5-2).
5-7.
Strata DK I&M 5/00