IBM 8203-E4A Manual page 36

Figure 20. 570 control panel
v A: Power-on button
v B: On/off power symbol
v C: Serial number label
v D: Function/Data display
v E: System port (S1)
v F: Power LED
– A flashing light indicates standby power to the unit.
– A constant light indicates full system power to the unit.
Note: There is approximately a 30 second transition period from the time the power-on button is
pressed to when the power LED goes from flashing to solid. During the transition period, you
might observe the flashing intervals speed up.
v G: Decrement button
v H: Enter button
v I: Increment button
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Control panel, control panel fillers, and signal cables