IBM 2274 - Manual (Page 64)

30 IBM Desktop System HMM
Operating Requirements
All machines require two power inputs: one for the
system unit and one for the monitor display.
The system unit comes with a voltage selector switch,
allowing selection of voltage of either 115 Vac or 230
Vac. This switch must be in the 230 Vac position
when the machine is plugged into a 230 Vac electrical
outlet.
The required power input for the monitor (Not
included with some models) shipped with the system
unit is auto-sensing type and does not require any
voltage switch adjustment.