IBM 2790, Manual

Page: 18 / 88

Character Card Punch
EBCDIC
0123 4567
Hexadecimal
A
1 2 -1
1 1 0 0 0 0 0 1
C l
B
1 2 - 2
1 1 0 0 0 0 1 0
C2
C
12-3
1 1 0 0 0 011
C3
D 12-4
1 1 0 0 0 1 0 0
C4
E 12-5
1 1 0 0 0 1 0 1
C5
F
1 2 - 6
1 1 0 0 0 1 1 0
C6
G 12-7
1 1 0 0 0 1 1 1
C7
H
1 2 - 8
1 1 0 0 1 0 0 0 C 8
1 12-9
1 1 0 0 1001
C9
J 11-1
1101 0 0 0 1
D1
K
1 1 - 2
1101 0 0 1 0
D2
L
11-3
1101 0 0 1 1
D3
M 11-4
1101 0 1 0 0
D4
N
11-5
1101 0 1 0 1
D5
O 11-6
1101 0 1 1 0
D6
P 11-7
1101 0 111
D7
Q
11 - 8 1101 1 0 0 0
D8
R
11-9
1101 1001
D9
S
0 - 2
1 1 1 0 0 0 1 0
E2
T 0-3
1 1 1 0 0 0 1 1
E3
U
0-4
1 1 1 0 0 1 0 0
E4
V 0-5
1 1 1 0 0 1 0 1
E5
W 0-6
1 1 1 0 0 1 1 0
E6
X 0-7
1 1 1 0 0 1 1 1
E7
Y
0 - 8 1 1 1 0 1 0 0 0
E8
Z
0-9
1 1 1 0 1001
E9
0
0
m i o o o o
F0
1 1
m i o o o i
FI
2
2 n n o o i o
F2
3
3
n n o o n
F3
4
4
1111 0 1 0 0
F4
5
5
1111 0 1 0 1
F5
6
6
1111 0 1 1 0
F6
7 7
1111 0 1 1 1
F7
8 8 1111 1 0 0 0
F8
9
9
1111 1001
F9
a
1 2 - 0 - 1 1 0 0 0 0 0 0 1
81
b
1 2 - 0 - 2 1 0 0 0 0 0 1 0
82
c 12-0-3
1 0 0 0 0 0 1 1
83
d 12-0-4
1 0 0 0 0 1 0 0
84
e 12-0-5
1 0 0 0 0 1 0 1
85
f
1 2 - 0 - 6 1 0 0 0 0 1 1 0 8 6
9
12-0-7
1 0 0 0 0 1 1 1
87
h
1 2 - 0 - 8 1 0 0 0 1 0 0 0 8 8
i 12-0-9
1 0 0 0 1001
89
Character
Card Punch
EBCDIC
0123 4567
Hexadecimal
i
12-11-1 1001 0001 91
k 12-11-2 1001 0010 92
1 12-11-3 1001 0011
93
m 12-11-4 1001 0100 94
n 12-11-5 1001 0101 95
o 12-11-6 1001 0110 96
P
12-11-7 1001
0111 97
q
12-11-8
1001
1000 98
r 12-11-9 1001 1001 99
s 11-0-2 1010 0010 A2
t
11-0-3 1010 0011 A3
u
11-0-4
1010 0100 A4
V
11-0-5 1010 0101 A5
w
11-0-6 1010 0110
A6
X
11-0-7 1010 0111 A7
y
11-0-8 1010 1000 A8
z 11-0-9
1010 1001 A9
9
12-2-8 0100 1010 4A
12-3-8
0100
1011 4B
<
12-5-8 0100 1101 4D
+
12-6-8 0100 1110 4E
1 12-7-8 0100
1111 4F
&
12
0101 0000 50
! 11-2-8
0101
1010 5A
$
11-3-8 0101 1011 5B
*
11-4-8 0101 1100 5C
)
11-5-8 0101 1101 5D
}
11-6-8 0101 1110 5E
11-7-8 0101
n n
5F
-
11 0110 0000 60
/ 0-1 0110 0001 61
/
0-3-6 0110 1011 6B
% 0-4-8 0110 1100
6C
—
0-5-6 0110 1101 6D
>
0-6-8 0110 1110 6E
? 0-7-8 0110 1111 6F
2-8
0111 1010
7A
#
3-8 0111 1011 7B
@ 4-6 0111 1100 7C
■
5-8 0111 1101 7D
=
6-6
0111
1110 7E
"
7-8 0111
1111 7F
* EO C 12-4-8 —
* Blank No Punch
—
* Not transmitted
Figure 10. Acceptable Area Station Character Set and Card Code
Badges are manually inserted (horizontally, face up,
guide-hole first). Badges that are inserted improperly are
not accepted. Properly inserted badges are retained at the
badge-reading station until completion of a correct trans­
mission. Data-transfer rate of the badge reader is approxi­
mately 100 characters per second.
Transaction Selection Switches
The transaction selection switches are ten pushbutton
switches located on the left front of the area station
(Figure 9). Selecting any of the first nine switches locks
the switches until the last switch (Release) is pressed.
Selection of any one of the first nine switches by the
operator generates an eight-bit character that identifies the
type of transaction chosen. The system controller can
assign (at the user’s option) different meanings to each
switch based on the area station address.
Control Keys
The Area Station contains four special purpose control
keys: Enter, Clear, Next Guidance, and Monitor.
18