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N4001 TDA4863G TMP87 CEU20P06 HD74LS20 32M61 EC3CB14 34286G2
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  s p e c i f i c a t i o n s r e l a y c a r d f e a t u r e s c o n t a c t r e s i s t a n c e : 1 0 0 m o h m s m a x c o n t a c t r a t i n g s : a c 1 2 5 v / 1 a o r d c 3 0 v / 3 a ( r e s i s t i v e l o a d ) o p e r a t i o n t i m e : 8 m s e c m a x r e l e a s e t i m e : 8 m s e c m a x o u t p u t s t a t u s r e a d b a c k 1 6 l e d i n d i c a t o r f o r e a c h c h a n n e l c o n n e c t o r : 3 7 - p i n d - t y p e ( e x t . a r - b 9 0 0 7 ) i s o l a t i o n : 2 1 0 0 v d c i s o l a t i o n a c r o s s e r o p e n c o n t a c t s 1 4 0 0 v d c i s o l a t i o n b e t w e e n c o i l a n d c o n t a c t s f o r i b m p c / x t / a t p e r s o n a l c o m p u t e r s a n d c o m p a t i b l e d i m e n s i o n s : 1 7 5 m m x 1 0 8 m m a r - b 2 1 0 3 g e n e r a l t h e r e g i s t e r s o f t h e a r - b 2 1 0 3 a r e l o c a t e d a s f o l l o w s : b a s e + 0 r e l a y p o r t 1 ( w r i t e ) r e l a y p o r t 1 ( r e a d ) b a s e + 1 r e l a y p o r t 2 ( w r i t e ) r e l a y p o r t 2 ( r e a d ) b a s e + 2 n o t u s e d n o t u s e d b a s e + 3 n o t u s e d n o t u s e d a d d r e s s o u t p u t r e g i s t e r i n p u t s t a t u s n u m b e r o f o u t p u t s m a x s w i t c h i n g p o w e r m a x s w i t c h i n g c u r r e n t c o n t a c t r a t i n g b o u n c e t i m e 1 2 f o r m a ( s p s t ) a n d 4 f o r m c ( s p d t ) r e l a y s r e s i s t i v e l o a d - a c 2 5 0 v a , d c 1 2 0 w , i n d u c t i v e l o a d - a c 1 2 5 v a , d c 6 0 w 4 a r e s i s t i v e l o a d - a c 1 2 5 v , 1 . 0 a o r d c 3 0 v , 3 a , i n d u c t i v e l o a d - a c 1 2 5 v , 0 . 6 a o r d c 3 0 v , 2 a 1 0 0 m i l l i o h m s m a x i m u m ( i n i t i a l v a l u e ) 8 m s m a x i m u m a t t h e r a t e d v o l t a g e 8 m s m a x i m u m a t t h e r a t e d v o l t a g e 8 m s m a x i m u m 1 0 0 m i l l i o n . ( r e f . 1 0 v d c , 1 0 m a ) 1 4 0 v r m s , 1 8 0 v d c 0 . 2 w 1 6 l e d m a x s w i t c h i n g v o l t a g e 2 5 0 v a c , 2 2 0 v d c c o n t a c t r e s i s t a n c e r e l e a s e t i m e o p e r a t e t i m e i s o l a t i o n c o n t a c t a n d c o i l - 1 5 0 0 v r m s , 2 1 0 0 v d c , c o n t a c t t o c o n t a c t - 1 0 0 0 v r m s , 1 4 0 0 v d c l i f e e x p e c t a n c y v a r i s t o r v o l t a g e v a r i s t o r p o w e r a c t i v e i n d i c a t o r s i / o a d d r e s s a p p l i c a t i o n s p o w e r c o n s u m p t i o n d i m e n s i o n s 1 7 5 m m x 1 0 8 m m b a s e p o r t s w i t c h s e l e c t a b l e f r o m 0 0 0 h t o 3 f c h w i t h i n c r e m e n t s o f 4 + 5 v d c @ 1 0 0 m a m a x . ( a l l r e l a y s o n ) , + 1 2 v d c @ 3 0 0 m a m a x . ( a l l r e l a y s o n ) c o n t r o l s w i t c h i n g , a n a l o g m u l t i p l e x i n g , m o t o r s t a r t e r c o n t r o l , a l a r m c o n t r o l , l i g h t i n g c o n t r o l r e g i s t e r s t h e a r - b 2 1 0 3 o c c u p i e s 4 c o n s e c u t i v e a d d r e s s e s i n t h e p c i / o s p a c e o f w h i c h o n l y t w o a c t u a l l y u s e d . t h e b a s e o r s t a r t i n g a d d r e s s i s s e l e c t e d d u r i n g t h e i n s t a l l a t i o n p r o c e d u r e . b a s e + w h e n t h e o u t p u t i s e n e r g i z e d , t h e s t a t u s l e d i n d i c a t o r w i l l l i g h t u p t o i n d i c a t e a n a c t i v e i n p u t . t h e r e g i s t e r s o f t h e a r - b 2 1 0 3 a r e l o c a t e d a s f o l l o w s : d 7 c h 8 d 6 c h 7 d 5 c h 6 d 4 c h 5 d 3 c h 4 d 2 c h 3 d 1 c h 2 d 0 c h 1 b a s e + d 7 c h 1 6 d 6 c h 1 5 d 5 c h 1 4 d 4 c h 1 3 d 3 c h 1 2 d 2 c h 1 1 d 1 c h 1 0 d 0 c h 9 o r d e r i n g i n f o r m a t i o n : m o d e l n o . a r - b 2 1 0 3 r e l a y c a r d a r - b 9 0 0 7 3 7 p i n s c r e w t e r m i n a l b o a r d f o r a r - b 2 1 0 3 w i t h 0 . 6 m r o u n d c a b l e . ( 1 ) . d i s k : w i n 3 1 / 9 5 d r i v e r d e s c r i p t i o n a c c e s s o r i e s n o t e t h a t a l l p o r t a r e 8 b i t ( o n e b y t e ) w i d e a n d r e q u i r e b y t e o r i e n t e d w r i t e o p e r a t i o n s r a t h e r t h a n w o r k o p e r a t i o n s . a l l r e l a y s i n a p o r t a r e u p d a t e d s i m u l t a n e o u s l y . w r i t i n g a l o w ( 0 ) t o a r e l a y w i t h i n a p o r t d e a c t i v a t e s t h e r e l a y . w r i t i n g a h i g h ( 1 ) t o a r e l a y a c t i v a t e s i t . p r o g r a m m i n g r e g i s t e r s n o d r i v e r i s s u p p l i e d w i t h t h e a r - b 2 1 0 3 s i n c e t h e p r o g r a m i s v e r y s i m p l e a n d c a n b e a c c o m p l i s h e d m o s t e f f i c i e n t l y u s i n g d i r e c t i / o i n s t r u c t i o n s , i n w h a t e v e r a p p l i c a t i o n l a n g u a g e i s u s e d ( i . e . , b a s i c , c , a s s e m b l y , p a s c a l , e t c . ) . f o r e x a m p l e , a s s u m e t h a t o n e w i s h e s t o t u r n o n r e l a y c h a n n e l 7 . a l s o a s s u m e t h e a r - b 2 1 0 3 b o a r d h a s b e e n s e t t o b a s e a d d r e s s 9 9 2 ( 3 e 0 h e x ) . t o t u r n o n r e l a y c h a n n e l 7 , o n e s i m p l y w r i t e s 0 1 0 0 0 0 0 0 t o b a s e a d d r e s s 9 9 2 . l i k e w i s e t o t u r n o n c h a n n e l 1 0 , 1 2 a n d 1 4 o n e w r i t e s 4 2 d e c i m a l ( 0 0 1 0 1 0 1 0 b i n a r y o r 2 a h e x ) t o i / o a d d r e s s 9 9 3 ( 3 e 1 h e x ) . t h e f o l l o w i n g e x a m p l e i s t h e b a s i c l a n g u a g e b u t i t c a n b e e a s i l y b e e n t r a n s l a t e d t o o t h e r l a n g u a g e s . e x a m p l e : a s s u m e t h e a r - b 2 1 0 3 i s i n s t a l l e d a t b a s e a d d r e s s 9 9 2 ( 3 e 0 h e x ) . t o t u r n o n t h e c h a n n e l 1 a n d 1 0 , w r i t e a s f o l l o w s : 1 0 0 0 b a s e _ p o r t = & h 3 e 0 : r e m b a s e i / o a d d r e s s e s 1 0 1 0 o u t b a s e _ p o r t , 1 : r e m t u r n s c h a n n e l 1 o n 1 0 2 0 o u t b a s e _ p o r t + 1 , 2 : r e m t u r n s c h a n n e l 1 0 o n t o c o n t r o l t h e d e s i r e d r e l a y s b u t m a k e n o e f f e c t t o o t h e r r e l a y s , w r i t e a s f o l l o w s : 2 0 0 0 b a s e _ p o r t = & h 3 e 0 : r e m b a s e i / o a d d r e s s e s 2 0 1 0 p o r t 1 = ( i n p ( b a s e _ p o r t ) o r 1 ) : r e m r e a d b a c k p o r t 1 s t a t u s a n d s e t b i t o f c h a n n e l 1 2 0 0 0 o u t b a s e _ p o r t , p o r t 1 : r e m t u r n s c h a n n e l 1 o n 2 0 3 0 p o r t 2 = ( i n p ( b a s e _ p o r t , 1 ) o r 2 ) : r e m r e a d b a c k p o r t 2 s t a t u s a n d s e t b i t o f c h a n n e l 1 0 2 0 4 0 o u t b a s e _ p o r t + 1 , p o r t 2 : r e m t u r n s c h a n n e l 1 0 o n


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