J1: floppy drive connector, J2: parallel port connector – IBM CI5VGM Series User Manual
Page 30
Chapter 2 Installations
26
CI5VGM User’s Manual
J1: Floppy Drive Connector
J1 is a 34-pin header and will support up to 2.88MB floppy drives.
Signal Name
Pin #
Pin #
Signal Name
Ground 1 2 RM/LC
Ground 3 4 No
connect
Ground 5 6 No
connect
Ground 7 8
Index
Ground
9
10
Motor enable 0
Ground
11
12
Drive select 1
Ground
13
14
Drive select 0
Ground
15
16
Motor enable 1
Ground 17
18 Direction
Ground 19
20
Step
Ground 21
22 Write
data
Ground 23
24 Write
gate
Ground 25
26 Track
00
Ground 27
28
Write
protect
Ground 29
30 Read
data
Ground
31
32
Side 1 select
J1
Ground 33
34
Diskette
change
J2: Parallel Port Connector
Signal Name
Pin #
Pin #
Signal Name
Line printer strobe
1
14
AutoFeed
PD0, parallel data 0
2
15
Error
PD1, parallel data 1
3
16
Initialize
PD2, parallel data 2
4
17
Select
PD3, parallel data 3
5
18
Ground
PD4, parallel data 4
6
19
Ground
PD5, parallel data 5
7
20
Ground
PD6, parallel data 6
8
21
Ground
PD7, parallel data 7
9
22
Ground
ACK, acknowledge
10
23
Ground
Busy 11
24
Ground
Paper empty
12
25
Ground
J2
Select 13
N/A
N/A