Laser 128 - Page 223

ENABl
WP ROT
+12V
EXPANSION CONNECTORS DIAGRAMS
+SY - llV
RESERVED
WDA TA £NAiii WJ£lll PH2 PHO
ROAT A SIDE I PHJ PHI
Figure C-4 External drive connector
1.
ground
2.
ground
3.
ground
4. reserved
5. -12 volt
6. +5 volt
7.
+ 12 volt
8. + 12 volt
9. ENABl - active l ow when
first drive is accessed
11. PHO - drive control
12. PHl - drive control
1 3. PH2 - drive control
14. PH3 - drive control
15. WREQ - active low when
write to dr iv e is required
16. SIDEl - active high when
side 1 of diskette is accessed
17. ENAB2 - active low when
second drive is accessed
10. WPROT - write protect
18. RDATA - drive data input
to computer
Fi g ure C-5
19. WDATA - drive data output
from computer
.-- COMPOSITE VIDEO OUTPUT
GND
Video connector
A -11