Siemens PC 670 manual Interface to floppy disk drive

Release 04/02 Hardware Information

Interface to floppy disk drive

By means of this interface a notebook floppy disk drive may be connected. The maximum connection length of the data cable may not exceed 40cm.

Pin	Short Name	Meaning	Input/
No.			Output
1	P5V	+5V	Output
2	INDEX_N	Index hole recognition	Input
3	P5V	+5V	Output
4	DS_N0	Drive 0 selection	Output
5	P5V	+5V	Output
6	DCHG_N	Disk change display	Input
7	n.c.	Not assigned	-
8	n.c.	Not assigned	-
9	Reserved	Reserved	-
10	MOT_N0	Activate motor 0	Output
11	Reserved	Reserved	-
12	DIR_SL_N	Step motor direction	Output
13	n.c.	Not assigned	-
14	STEP_N	Step motor pulse
15	GND	Chassis ground	-
16	WR_DAT_N	Write data signal	Output
17	GND	Chassis ground	-
18	WR_GAT_N	Enable data signal	Output
19	Reserved	Reserved	-
20	TRACK_N0	Track 0 signal	Input
21	Reserved	Reserved	-
22	WR_PRT_N	Write protection signal	Input
23	GND	Chassis ground	-
24	RD_DAT_N	Read Data signal	Input
25	GND	Chassis ground	-
26	SIDE_1_N	Page selection	Output

Panel PC 670 Computing Unit, Equipment Manual 7-27