J3: Digital I/O Connector (4 In, 4 Out); J4: Floppy Drive Connector - IBT Technologies IB770 User Manual

INSTALLATIONS

J3: Digital I/O Connector (4 in, 4 out)

This 12-pin Digital I/O connector supports TTL levels and is used to
control external devices requiring ON/OFF circuitry.
Signal Name
GROUND

J4: Floppy Drive Connector

J4 of the IB770 is a 34-pin header and will support up to 2.88MB FDD.
16
Pin #
IN0 1
IN1 2
IN2 3
IN3 4
5
OUT2 6
Signal Name
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
IB770 User' s Manual
Pin # Signal Name
7
8
9
10
11
12
Pin # Pin #
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
31 32
33 34
+5V
OUT0
Ground
OUT1
+12V
OUT3
Signal Name
RM/LC
No connect
No connect
Index
Motor enable 0
Drive select 1
Drive select 0
Motor enable 1
Direction
Step
Write data
Write gate
Track 00
Write protect
Read data
Side 1 select
Diskette change