IBM CI5VGM Series user manual Signal Name, Pin #

Chapter 2 Installations

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
J1	Ground	27		28		Write protect
	Ground	29		30		Read data
	Ground	31		32		Side 1 select
	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
J2	Paper empty	12		25		Ground
	Select	13			N/A	N/A
26					CI5VGM User’s Manual