Tandy 1000 SL Technical Reference Manual page 407

( 3 ) S i g n a l o f i n t e r f a c e c o n n e c t o r p i n ~ 0 . 3 4
While t h e o u t p u t s i g n a l o f i n t e r f a c e c o n n e c t o r p i n No.34
(READY, OPEN,
o r o t h e r o p t i o n a l s i g n a l s ) i s
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l e v e l ) , "RDY" i n d i c a t o r o f t h e
SKA
t u r n s on.
Refer t o t h e S p e c i f i c a t i o n as t o t h e f u n c t i o n o f t h e s i g n a l and i t s
r e l a t i o n t o t h e s t r a p s .
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3231
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