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C o n n e c t i n g T o T h e D a t a P o r t
N - 5 6 0 S e r v i c e M a n u a l
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5 . S e l e c t b a u d r a t e b y p r e s s i n g
9 6 0 0 , o r 1 9 2 0 0 [ d e f a u l t ] ) .
6 . P r e s s t h e
S a t S e c o n d s
D a t a i s t r a n s m i t t e d i n t h e R S - 2 3 2 a n d R S - 4 2 2 f o r m a t s . R S - 2 3 2 d a t a c a n b e
t r a n s m i t t e d a m a x i m u m o f 2 5 f e e t ( 7 . 6 2 m e t e r s ) . T h e R S - 4 2 2 d a t a c a n b e
t r a n s m i t t e d a m a x i m u m o f 4 , 0 0 0 f e e t ( 1 , 2 1 9 . 2 m e t e r s ) . T h e p i n o u t s f o r t h e
d a t a p o r t a r e l i s t e d i n T a b l e 1 9 .
T X D + a n d T X D - a r e t h e d i f f e r e n t i a l t r a n s m i t d a t a p a i r . R X D + a n d R X D - a r e
t h e d i f f e r e n t i a l r e c e i v e p a i r .
T a b l e 1 9 : D a t a P o r t P i n o u t s
P i n
1
R X D + ( R S - 4 2 2 p o s i t i v e i n p u t )
2
R X D ( R S
2 3 2 i n p u t )
-
3
T X D ( R S
2 3 2 o u t p u t )
-
4
T X D + ( R S - 4 2 2 p o s i t i v e o u t p u t ) ( - 5 t o - 1 2 V D C w i t h n o a u d i b l e
a l a r m , 5 t o 1 2 V D C w i t h a u d i b l e a l a r m )
5
S i g n a l G r o u n d ( i s o l a t e d f r o m E a r t h G r o u n d )
6
N C ( N o c o n n e c t i o n )
7
N o r m a l l y O p e n ( N . O . w i t h n o a u d i b l e a l a r m ) , d r y c o n t a c t f o r N u r s e
C a l l
8
N o r m a l l y C l o s e d ( N . C . w i t h n o a u d i b l e a l a r m ) , d r y c o n t a c t f o r
N u r s e C a l l )
9
R X D - ( R S - 4 2 2 n e g a t i v e o u t p u t )
A d j u s t U p
A d j u s t D o w n
o r
A l a r m L i m i t b u t t o n t o s e t t h e s e l e c t i o n .
S i g n a l N a m e
D a t a P o r t I n t e r f a c e P r o t o c o l
b u t t o n ( 2 4 0 0 ,
9 7
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