1. INTRODUCTION
1-5
1.6 Trackball Control Unit RCU-026
The RCU-026 has a power key, a trackball module (trackball, scrollwheel and left and
right mouse buttons), a status LED, and a USB port. The trackball module functions
like a PC mouse; the user rolls the trackball and operates the left and right buttons and
the scrollwheel to do various functions.
1.6.1 Control description
1.6.2 Operator fitness
The operator fitness signal is output whenever the trackball is operated.
Control Description
Power key Turns the system on or off. (Where the slide switch for MU-190/MU-231 or MU-270 is
ON, this key also turns the display unit on or off.)
Status
LED
The color and state of the LED change according to system or alert status. See the
LED status description on page 1-3.
Left
button
• Does the operation related to the object selected.
• Confirms the operation done for the object selected.
Scrollwheel • Select options.
• Selects chart scale.
• Sets numeric data.
The scrollwheel does not have a “push” function.
Right
button
• Displays context-sensitive menu when cursor is put in the display area.
• Cancels operation done on the object selected.
Trackball • Moves the cursor.
• Selects an object.
USB port For connection of USB flash memory (FAT16 or FAT32 format). Do not connect a USB
HDD or PC keyboard. The DVD drive (Maker: TEAC, Type: PU-DRV10) is for chart
updates.
Status
LED
Trackball
Power key
Left button
Right
button
USB port
Scrollwheel