Panasonic KX-P4440 - Manual (Page 135)

6.3 Interface Specifications
Parallel Interface
T h e p arallel in te rfa ce is b ase d o n th e C e n tro n ics stan d ard .
Specifications:
• d ata tra n sfer s p e ed : 1 0 0 0 cp s m in im u m
•sy n ch ro n iza tio n : e x tern al S T R O B E p u lse
• lo g ic lev e ls: T T L _____
• h an d s h ak in g : B U S Y an d A C K s ig n als
•co n n ec to r t y p e : 5 7 -3 0 3 6 0 (A M P H E N O L ) o r e q u iv alen t
•cab le: u se a sh ie ld ed ca b le 6 .6 fee t (2 m e ters) o r l ess in len g th .
W h e n th e p rin ter is p ro ce ssin g d ata , th e B U S Y sig n a l is h ig h . T h e p rin ter
w ill n o t ac ce p t n e w d ata fro m th e co m p u ter. A fte r th e p ro ce ssin g is
co m p leted , th e B U S Y sig n al g o es lo w . (T h e B U S Y sig n al is als o h ig h
w h en th e p rin ter is O F F L IN E .)
W h e n th is o ccu rs, th e A C K sig n a l g o e s lo w in d ic atin g to th e c o m p u te r
th a t th e d ata h a s b e en p ro c ess ed an d th e p rin ter is rea d y to ac ce p t m o re
d ata. T h is h an d sh a k in g ro u tin e o cc u rs ea ch tim e a c h arac ter is s en t to th e
p rin te r.
B U S Y S L C T P O E R R O R
O N L IN E L O W H IG H L O W H IG H
O F F L IN E H IG H L O W L O W L O W
P A P E R O U T H IG H L O W H IG H L O W
T ab le 6 .1 P rin ter statu s sig n a ls
Specifications 6-7