SYSTEM TECHNICAL MANUAL HARDWARE DESCRIPTION
COLOR CRT
The 12-inch color CRT displays 25 horizontal lines with 80 charac
ters per line. In the graphics mode, the CRT is all points address
able with 640 pixels horizontally and 400 pixels vertically. Charac
ters are in a 6 x 9 matrix on an 8 x 16 box. The CRT can display
eight colors; black, white, red, green, blue, yellow, magenta, and
cyan. The selection of color is controlled by the software. Screen
refresh is at 56.06 Hz, the horizontal frequency is 24.27 KHz.
The CRT requires a supply voltage of 107Vac±2V with a
maximum current of 0.45A. The CRT monitor accepts separate
direct drive inputs at TTL level to video blue, video green, video
red, horizontal drive, and vertical drive circuits.
Technical details of the color CRT are shown in Figure 2.37.
Deflection angle 90 Degrees
CRT surface
Non-glare, anti-reflection, high-contrast
Phospor
P22 (red, green, blue)
Dot trio pitch
0.31 mm
Number o f colors 8
Figure 2.37 CRT Technical details
RS-232-C PERIPHERAL ADAPTERS
The adapter consists of a small printed circuit board, containing
a 2651 programmable communications interface and support
logic, a connecting cable and plug, and a housing that allows
direct connection to the I/O bus of the NCR DECISION MATE V.
Three versions of the adapter are available, K211, K212, and
K213:
• K211 for the connection of communications devices such as
modems and line couplers
• K212 for the connection of serial printers and terminals
• K213 for the connection of serial plotters
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