J1: Floppy Drive Connector; J2: Parallel Port Connector - IBM CI5VGM Series User Manual

Chapter 2 Installations

J1: Floppy Drive Connector

J1 is a 34-pin header and will support up to 2.88MB floppy drives.
Signal Name
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
Ground
J1
Ground
Ground
Ground

J2: Parallel Port Connector

Signal Name
Line printer strobe
PD0, parallel data 0
PD1, parallel data 1
PD2, parallel data 2
PD3, parallel data 3
PD4, parallel data 4
PD5, parallel data 5
PD6, parallel data 6
PD7, parallel data 7
ACK, acknowledge
Busy
J2 Paper empty
Select
26
Pin # Pin # Signal Name
1 2 RM/LC
3 4 No connect
5 6 No connect
7 8 Index
9 10 Motor enable 0
11 12 Drive select 1
13 14 Drive select 0
15 16 Motor enable 1
17 18 Direction
19 20 Step
21 22 Write data
23 24 Write gate
25 26 Track 00
27 28 Write protect
29 30 Read data
31 32 Side 1 select
33 34 Diskette change
Pin # Pin # Signal Name
1 14 AutoFeed
2 15 Error
3 16 Initialize
4 17 Select
5 18 Ground
6 19 Ground
7 20 Ground
8 21 Ground
9 22 Ground
10 23 Ground
11 24 Ground
12 25 Ground
13 N/A N/A
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