VISUAL 200 - Figure 4-1 Format and Values of Character Messages

VISUAL TECHNOLOGY INCORPORATED, RAILROAD AVENUE, DUNDEE PARK, ANDOVER, MA 01810
DATA RATE SWITCH
110 0
200
300
2
1200 3
2400 4
4800
5
9600 6
19200
PARITY SWITCH
EVEN
@
ODD A
MARK B
SPACE
C
MODE SWITCH
VISUAL 200 IVT -52+)
0
ADDS 520+
Hazeltine 1500+
2
ADM-3A+
3
DUPLEX SWITCH
FDX SEC. CH.
@
HDXSEC. CH.
A
FDX ETX
B
HDX ETX
C
FDX EDT
D
HDX EDT E
FDX CR F
HDX CR
G
NEW LINE, LF/CR, SCROLL
CHAR.
AUTO N.L. AUTO CR/LF
0 0 0
1
0 0
2 0
3 0
4
0
5 0
6
NOTE: a indicates function inactive
1 indicates function active
SCROLL
0
1
0
0
1
0
2A2@7@AA6B
J
T
CURSOR ADDRESS
MODE
FOX
VISUAL 200 IVT -52+) YX
ADDS 520+, ADM-3A+
YXCR
Hazeltine 1500+
XY CR
CHECKSUM SCREEN HALF INTENSITY DATA
@@ (high order 4 bits, low order 4 bits)
MODE
CHAR. GRAPHICS
HALF INT. SECURITY HOLD SCREEN
@
0
0 0 0
A 0 0 0 0
B
0 0
0
C 0 0 0
0
0
0 0
E
0 0
0
F
0 0 1
G
0 0
H
0 0 0
0
0 0
0
0
K 0 0 1
L
0
0
M
0
0
N
0
D 0
1 1
P
0 0 0
Q
0 0 0
R 0 0
S 0 0
T
0
0
U
0
0
V
0
W 0
X 0 0
Y
0 0
Z 0
[
0
\
0
1
0
1\
Figure 4-1 Format and Values of Character Messages
19
HDX
YXCR
YX duplex sw
XYCR
INS. CHAR.
0
0
1
0
0
1
0
1
0
1
0
0
0
1
0
0
1
0
0
0
1
0
1
0