ESI VideoBridge 2150, Руководство по обслуживанию

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I n a dd i t i on , V i de oB r i dg e op t i ons ( G P I B , RS - 2 3 2 C , H a n d l e r I n t e r f a ce )
a l s o a f f e c t Overa l l M e a s u reme n t Speed :
F o r GP I B mea s u remen t s , a dd 3 5 0 m s pe r mea s u re m e n t i n FAST a nd S L OW
mod e s , 40 0 m s i n ME D i u m t o s t a nda r d V i de oB r i dge me a su r e me n t spee d s .
F o r R S - 2 3 2 C mea su reme n t s , u s e t h e b a u d ra te s e t a t t he f a c tory ( 9 600 )
a n d range H O L D t o a c h i e v e op t i mum me a s u reme n t spee ds .
T h e V i de o B r i dg e w i t h H a n d l e r I n t e r f a ce opt i on c a n be p r o g r a mmed to
ope ra t e w i t h o u t d i s p l a y ( te s t code 8 ) . E l i m i na t i n g d i sp l a y saves up t o
1 1 0 m s p e r me a s u r e m e n t . B y s e l e c t i n g F A S T m o d e a l o n g w i t h m i n i m u m
I n te g ra t i o n a n d S e t t l i ng t i me s o f 2 m s , t h e V i de oB r i dge w i t h H a n d l e r
I n te r f a ce c a n make up t o 9 m e a s u r e me n t s p e r s e c ond . Re f e r t o S e c t i on
A . l o f t h i s ma n u a l f or m o r e i n f o rma t i on on H a n d l e r I n te r f a c e t i m i n g .
NOTE :
A l l spe e d s l i s te d a re appr o x i ma t e . Spe c i f i e d t i me s ma y
v a ry by 3 - 5 ms due t o i n t e r na l c l oc k syn c h r on i z a t i o n .
Me a n i ng f u l de t e rmi na t i on o f mea s u re m e n t spe e d depe n d s o n s pe c i f y i n g
t he f o l l ow i n g c o nd i t i on s :
1 )
2 )
3 )
4 )
5 )
6 )
t e s t f re q u e n c y
i n t e g ra t i on t i me
s e t t l i n g t i me
n um be r o f a ve ra g e s
d i sp l ay mode
t e s t s i g na l
7 )
8 )
9 )
1 0 )
1 1 )
1 2 )
va l ue o f comp on e n t- u nder- t e s t
baud ra te ( i f app l i ca b l e )
FAST v s . MED i um v s . S L OW
s i ng l e vs . con t i n u o u s
r a n g e h o l d vs . a u t o r a n g e
b i a s on vs . b i a s o f f
2 - 9 2
e
l
s
l
i 2 1 5 0 /2 1 6 0 5 / 8 5