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Appendix 1-10 Interfaces Rev.A
Confidential
Floppy Disk Drive Connector
One 3.5-inch floppy disk drive, which can read and write 1.44MB and 720KB format floppy
disks, can be installed as an optional device in the SR-600.
The connector is a MOLEX 52629-2651(MOLEX) or equivalent connector.
A1-11 FDD Connector
Table A1-9 Floppy disk drive connector pin assignments (Main board CN7)
No. I/O Signal name No. I/O Signal name
1
-
GND 2
-
NC
3OHDSEL# 4I RDATA#
5
-
GND 6 O WDATA#
7OFMODE# 8
-
NC
9 O DS0# 10
-
+5V
11
-
+5V 12
-
+5V
13 I INDEX# 14 I WP#
15 I TRK0# 16
-
NC
17 O WGATE# 18
-
GND
19
-
NC 20 O STEP#
21 O DIR# 22 O MTRON#
23
-
NC 24 I DSKCHG#
25
-
GND 26
-
NC
25
26
1
2