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4-78 .
±5 V
S
UPPLY. The 10-1/2 V fro m
t
he ORG seco ndary
i
s fu ll-wa v e rectified and stored betwee n ac cycles
the recti fier and storage capac itors to prod uce an aver age of ±25 V. The regulator I.C . ta kes the high-ripple ±25V
and regulates
i
t to al most ripple
f
ree ±15 volts. The regul ator I .C . also p rovides current limi tin g so accide ntal
s hort circ ui ts do not damage the circ ui t. Excess
h
eat ge ne rated by the
I .C .
is diss ip ated into the
h
eat si nk brac ket .
Table 4-7. Interface Bus Code Set
ASCII COD E S
(A MER ICAN STAN DA R D COD E FOR
I
NF O RM ATIO N
I
NT ER C HANG E)
ADDRE SS
M
OD E
UN I VERSA L
NL ISTEN
U
CO MM ANDS
CO MM A N D
DATA
M
OD E
NOT
U
SED
EXC EP T
A LL DATA
CR , LF AS
W
OR D T ERM I NATOR S
ι
LISTEN
TA LK
Section IV -
P
rin ciples of
O
peration
Model 59313Α
UN TA LK
NOT
CO MM AND
U
SE D
ADDRE SS
ADD RE SS
-_
-_--
Ι
-y
Υ
NOT
U
SED
4- 2 7
B
ITS
b, y
b,,-~
b ς -~
00 0
0 0 1
01 0
0 1 1
1 0 0
10 1
1 1 0
11 1
b a
b,
b:
b,
CO LUMN
3
4
5
6
7
OW
0
1
2
0
0
0
0
0
NUL
D
LE
Ι
S
P
Ι
z
@
Ι
0
0
0
1
1
SO H
DC1
IMMUMMI
ο
ο
1
ο
2
STX
DC2 ~ι~s ιι ~ σι h
ο
ο
1
1
3
ΕΤΧ
DC3
i~sιι ~s ι ~
~
ο
1
ο
ο
4
EQT
DC4
ισ~ ιι ~~ ι - λ
0
1
0
1
5
EN Q
ΝΑΚ
ι~©
~ Ι
e
υ
0
1
1
0
6
AC K
SY N
ι ~©
0
1
1
1
7
BEL
ΕΤΒ
ι
1
0
0
0
8
B
S
CA N
ι
1
0
0
1
9
HT
EM
1
9
1
0
1
0
10
LF
S
UB
-
.
1
0
1
1
11
V
T
E
SC
1
1
0
0
12
FF
F
S
Ell
____
1
1
0
1
13
C
R
GS
ι
-
1
1
1
0
14
SO
R
S
ι ,
~ "
1
1
1
1
15
SI
U
S
/
ο
D
EL
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