IFR Systems FM/AM-1200S/A Operation Manual page 98

Communications service monitor
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4 - 1 1
B A S I C R S - 2 3 2 O P E R A T I O N
T h i s p a r a g r a p h c o n t a i n s b a s i c i n s t r u c t i o n s f o r o p e r a t i n g t h e FM/AM-
1 2 0 0 S / A u s i n g a n R S - 2 3 2 o r G P I B c o m p a t i b l e e x t e r n a l d e v i c e .
U s i n g t h e s e
i n s t r u c t i o n s ,
t h e o p e r a t o r c a n s e l e c t a n y a v a i l a b l e p a r a m e t e r o f t h e
f o l l o w i n g F M / A M - 1 2 0 0 S / A
f u n c t i o n s :
DTMF
OFFSET
I M T S ( P U L S E )
METER
TONE
R F
TONE WAVEFORM
DCS
MODULATION
4 - 1 1 - 1
F M / A M - 1 2 0 0 S / A
I N I T I A L I Z A T I O N
T h e i n i t i a l c o m m u n i c a t i o n b e t w e e n t h e F M / A M - 1 2 0 0 S / A
a n d t h e e x t e r n a l
c o n t r o l l e r c o n s i s t s o f B a u d R a t e s y n c h r o n i z a t i o n .
T h e e x t e r n a l
c o n t r o l l e r c a n b e s e t t o a n y o n e o f t h e f o l l o w i n g B a u d R a t e s :
U s e t h e f o l l o w i n g p r o c e d u r e t o i n i t i a l i z e t h e F M / A M - 1 7 0 0 S / A
f o r R S - 2 3 2 /
G P I B o p e r a t i o n :
STEP
PROCEDURE
3
-
1.
C o n n e c t e x t e r n a l c o n t r o l l e r t o F M / A M - 1 2 0 0 S / A
a t R S - 2 3 2 / G P I B
C o n n e c t o r
( 4 3 ) .
2 .
C h e c k F M / A M - 1 2 0 0 S / A
P r o t o c o l ( A p p e n d i x 0 ) .
3 .
P r e s s
FuNcT
B
A
~
o n t h e K e y b o a r d ( 1 8 ) ,
f o l l o w e d b y t h e n u m b e r
c o r r e s p o n d i n g t o t h e d e s i r e d B a u d
ate
a s s h o w n a b o v e .
1
E x a m p l e :
S e t B a u d R a t e t o 4 8 0 0
" S E T BAUD RATE 5 "
w i l l
b e d i s p l a y e d o n VFD ( 3 7 ) .
4 .
T y p e t w o C R ( c a r r i a g e r e t u r n s ) o n e x t e r n a l c o n t r o l l e r .
" R S - 2 3 2
ENABLED" s h o u l d b e d i s p l a y e d o n VFD ( 3 7 ) .
5 .
I f a c o m p u t e r i s a v a i l a b l e ,
a p r o g r a m m a y b e u s e d f o r c o n t r o l .
T h e f o l l o w i n g e x a m p l e w i l l w o r k o n I B M - c o m p a t i b l e
t y p e s .
N o t i c e
t h a t B a u d R a t e i s 9 6 0 0 i n t h e e x a m p l e .

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