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Okuma America Corporation
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Rev. 8-21-01
Main Card 13 (A911-1521) RS-232 card
This card contains the RS-232-C interface and is mounted on the MB-IIB with the component
sides of both boards facing each other. Tape readers, punchers, printers, PC’s, and any other
peripheral which conforms to the RS232-C standard can be connected via this interface.
Main Card 15 (A911-1526) Sub CPU card
This is an optional card on the OSP 5020M controls only. It incorporates a 32 bit double engine
architecture. A microprocessor (M68020) and a math co-processor (M68881) for the Hi-speed/
Hi-Accuracy machining centers are the two “engines” on this card. This option is referred to as
Hi²NC.
Main Card 16 (A911-1516) Sub CPU card
This card is standard equipment on the OSP 5020M controls. This card performs the multi-axis
contouring functions for the machining centers.
Main Card 17 (A911-1517) Sub CPU card
This is an option card employed when the One-Touch IGF function is purchased. This option
allows the operator to do some graphics programming at the machine.
CRP-IIC (A911-1692) or (A911-1693) CRT Processor board
This board is used for data communication with the OSP 5000/5020 NC operation panel. It
transmits the video signal to the NC operation panel for the CRT display. This board is com-
prised of a Character IF, a Color Graphic IF, and a Serial IF. The 1692 board is the standard
board. The 1693 board is used if the TM-APT (Remote programming station) option is pur-
chased with the machine.
Character IF
This interface is used to control the character display mode (half-size, normal size, and
enlarged size). After being combined with the color-graphics IF video signals, the char-
acter IF signals are transmitted to the NC operation panel as video signals and the char-
acters are displayed at the CRT.
Color-Graphics IF
The graphic controller provides a total of 4 color graphic screens. Graphic control is
possible only by using the graphic controller. After being combined with the character
IF video signal, the color graphic video signal is transmitted to the NC operation panel,
with the color graphic signal then being displayed at the CRT.
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