ADLINK MLC 4-21 - Manual (Page 15)

MLC 4-xx Technical Manual Rev. 1.2
Description of interfaces and
functions
Document: Manual_Medical_MLC_1.2 Page 15 of 37 pages Last change date: 18-Feb-15
6.1.4. Table of controls
– technical data and information
Control # Description
19
Main on/off switch, disconnects/connects both AC lines from/to inter-
nal PSU, switches between ACPI global states G3 (mechanical off)
and G2 (soft off)
Note: ACPI global state G2 is the same as ACPI system state S5
Push button is indicated by symbol shown right:
20 Membrane keyboard with four keys and two LEDs
20a
Power push-button (soft on/off)

turns on/off device if main on/off switch #19 connects internal PSU to AC
lines, with other words: Power push-button switches device between ACPI
system state G2/S5 (soft off) and S0 (working)

forces device to resume from ACPI system state S4 (STD, Suspend To
Disk) depending on OS settings
Press button minimum 2s to turn on device and minimum 7s to hard power
down.
Note: This feature avoids unintended power ups/downs
20b Brightness increase button, increases LCD backlight brightness if pressed
20c Brightness decrease button, decreases LCD backlight brightness if pressed
20d
Touch on/off button, disables/enables the touch screen if pressed, useful if touch
should be disabled for cleaning purposes to avoid undesired operation of device
20e
Blue LED indicates that

device is in ACPI state S0 (powered and full working, LCD on) or
 device is in ACPI state S0 “away mode” (only LCD is off) or

device is in ACPI state S1 (CPU is in HALT state, LCD off)
For technicians: PSU powers all supply rails
20f
Orange LED indicates that

device is in ACPI state S3 (STR, Suspend To RAM, LCD off) or

device is in ACPI state S4 (STD, Suspend To Disk) or

device is in ACPI state S5 (soft off)
For technicians: PSU provides only +5V standby voltage
w/o
Optional PCAP touch; the MLC is available as touch version, too.
Note: This is no add-on option and has to be ordered, please contact your PEN-
TA sales representative for this purpose.
6.1.5. Exchanging Fuses
Exchange fuses only if PENTA device is depowered and not connected to the
power source/outlet.
!