Ac Rack Information; Ac Power Distribution Bus - IBM T00 Service Manual

AC Rack Information

This section contains information about ac rack components.

AC Power Distribution Bus

There are two types of ac power distribution buses:
v Type 6 power distribution buses have six IEC320-C13, 200 V to 240 V ac outlets. An additional two
front outlets have limited access, as shown in the figures on the following pages. The input ac power to
the bus is not switched, so each outlet has a separate circuit breaker to protect against excessive
current (see the schematic on the following pages). The type 6 power distribution bus feature codes are
9171, 9173, 9174, and 6xxx
v Type 7 power distribution buses have nine IEC320-C13, 200 V to 240 V ac outlets. The input ac power
to the bus is not switched, so each group of three IEC320-C13, 200 V to 240 V ac outlets has a
separate circuit breaker to protect against excessive current (see the schematic on the following pages).
The type 7 power distribution bus feature codes are 9176, 9177, 9178, and 7xxx.
v 9188/7188 power distribution buses have twelve IEC320-C13, 200 V to 240 V ac outlets. The input ac
power to the bus is not switched, so each group of two IEC320-C13, 200 V to 240 V ac outlets has a
separate circuit breaker to protect against excessive current (See the schematic on the following
pages.).
A rack can contain up to four vertically mounted ac power distribution buses. Two additional power
distribution buses (each consuming 1 EIA location) can be mounted horizontally in the bottom rear of a
Model T00 rack, and three additional power distribution buses (each consuming 1 EIA location) can be
mounted horizontally in the bottom rear of a Model T42 rack. The four vertical mounting slots will be filled
first before consuming EIA locations in the rack. Type 6 ac power distribution buses contain eight 200 V to
240 V ac outlets to provide power to the devices and drawers. For type 6, the input ac power to the bus is
not switched, so each outlet has a separate circuit breaker to protect against excessive current.
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7014 Model T00, and Model T42 Service Guide