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The Terminal Unit
The DTE may consist of IB-581 or IBM compatible pc. All opera-
tions are carried out from the terminal unit, through an easy-to-un-
derstand menu system. For personal computer connection a system
disk (supplied) is required to boot up the computer. Opetarion by a
computer is the same as with the terminal unit except when turning
on the power.
Power switch
Floppy disk drive
BRIGHT
control
CONTRAST
control
Figure 1-2 Terminal unit IB-581
To turn on/off the unit, press the POWER switch.
Controls for adjustment of screen brilliance and contrast are to the
right of the POWER switch.
Floppy disk drive
The terminal unit provides a floppy disk drive for storing transmitted
and received messages on floppy disks.
Floppy disk
The floppy disk used with the system is a standard 3.5” floppy disk.
Always leave a floppy disk inserted to save incoming messages.
Terminal unit cannot print file from a floppy disk when there is not
enough space remaining on the disk. In this case, replace disk with
formatted disk.