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No. 99MBB091A
■ Nomenclature and function of the Display unit connectors
● Display unit rear view
AC adapter
connector
Battery
switch
Reset
button
Volume adjustment control
RS-232C
switch
RS-232C
connector
SPC
connector
Button masking switch
Contrast adjustment control
• AC adapter connector
Connects the AC adapter cable for power supply.
• Battery switch
Turns on/off the battery power to the circuit. Leave it on normally.
• Contrast adjustment control
Adjusts the contrast of the touch panel.
• Button masking switch
Restricts some of the functions of the touch panel.
• Reset button
Restores the factory-set default conditions.
• Volume adjustment control
Adjusts the volume of the beep generated when the touch panel is pushed. To adjust the
volume, turn the control with a small flat-blade screwdriver.
• RS-232C switch
Switches between the normal mode and the communication mode.
• RS-232C connector
Connects the RS-232C cable.
• SPC connector
Connects the SPC cable.
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