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READY AND TRUE READY (R AND TR)
When th e R
j u m p e r i s i n s t a l l ed, th e R eady
signal is available at th e i n t e r f ace. When the
TR jumper is installed, the True Ready signal
is available at the interface.
The R
j u m p e r i s s t a n d a rd , w h i l e t h e TR
jumper is optional. These two l i nes are inde-
pendent functions, and may be used separately
or together.
R
TR
READY O R TRUE READY
-
X
Ready signal via J1-22.
X
Tr ue Re a d y signal via J1-8.
NOTE
W hen u s in g
t h e Tr u e R e a d y
option, Motor Control 3 may not
be used.
LEVER LOCK OPTIONS (D, DL, LL, NL)
The lever lock solenoid, an optional feature,
can be controlled by th e In Use in t er face line
J1-16.
D
DL
LL
NL
-
X
X
X
X
X
X
LEVE R LOCK
SOLENOID
L atched with Dr i v e
Select.
L at c h e d by In Use
via J1-16, true (low).
Active energizes
solenoid.
Latched by In Use
via J1-16. Active low,
in conjunction with
Drive Select, latches
the solenoid. The
solenoid remains
latched until In Use
is false (high) on the
leading edge of Drive
Select.
DISK CHANGE (DC)
T his outpu t i s u s e d t o i n d i c at e t o t h e c o n -
troller that a disk change has been made. The
internal
s i g na l i s g a t e d w i t h D r i v e S e l ect.
When th e l e ver i s o p ened, the D i s k C h a nge
l ine goes low (true), and remains low until t h e
trailing edge of the next Drive Select.
DC
DISK CHANGE
Disk Change signal not available.
Disk Change signal available via
J1-12.
TWO-SIDED DISKETTE INSTALLED (2S)
W hen
a t w o- s i d e d d i s k e t t e i s i n s t a l l e d ,
i nternal circuitry g ates this signal wit h D r i v e
S elect. I t
s e nd s a l o w ( t r u e ) s i g na l t o t h e
controller,
i n d i c a t in g t h a t a d oub l e - sided
d iskett e
i s i ns t a l l e d ( i n d e x h o l e t wo i s
present). This option is factory installed.
2S
TW O - S IDED DISKETTE
Two sided di sk e tt e s i
available.
Two-sided diskette signal available
via J1-10.
WRITE PROTECT (WP AND NP)
T his WP option is used to lock out th e W r i t e
G ate w h e n
a wr it e pro t e c ted d i s k e tt e i s
installed. It is factory installed.
T he NP option a l l ows the controller t o w r i t e
o n any d i s k et te, w h ether o r
protected. It d oes not stop th e W r i t e P r otect
signal from b e in g sent on t h e i n t e r f ace li n e.
T his option is i m plemented by removing W P ,
and installing NP .
WP
NP
X
X
3-13
rr
na1 n
nt
n o t i t i s w r i t e
WRITE PROTECT
Disables Write Protect, for
write protected diskette.
Allows writing on any
diskette.
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