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The MultiBay connector board is mounted between the two MultiBays and
serves to route the appropriate signals to the MultiBay connectors.
1.7.3 Power Supply
The power supply is an AC-to-DC converter that serves the same function as
the AC adapter and DC-to-DC converter in the computer. It provides
regulated DC power for all of the subsystems. The expansion base uses a
standard AC power cord that connects directly to the power supply.
An external fan mounted on the power supply provides cooling. When the
temperature of the power supply exceeds 104oF (40oC), the fan turns on.
When the temperature drops below 104oF, the fan turns off.
The MultiBay ISA model has an auxiliary cooling fan mounted on the rear of
the bottom case. The auxiliary fan remains active as long as power is
applied to the MultiBay ISA Expansion Base.
1.7.4 IrDA Interface
The IrDA interface is mounted on the front left corner of the expansion
base and shares a small PCB with the removable drive status lights. The
board is mounted to the underside of the expansion base top cover with a
single screw. The IrDA interface on the expansion base replicates the IrDA
interface on the computer.
1.7.5 Activity Lights
The expansion base has two sets of activity lights.
Removable-Drive Lights
The removable-drive lights are installed on the front left of the
expansion base and share a small PCB with the IrDA interface. The board is
installed as a unit from the back side of the expansion base top cover.
The status lights are identified in Figure 1-7 and described in Table
1-10.