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Chapter 3 Connection
This chapter describes how to connect peripherals, switches and indicators to the
WAFER-4821 board. You can access most of the connectors from the top of the
board while it is installed in the chassis.
1.1 Floppy Disk Drive Connector
WAFER-4821 board comes equipped with a 34-pin daisy-chain driver connector
cable. The detailed pin assignment of the connector is specified as following
table:
•
CN8: Floppy Disk Drive Connector
PIN Description PIN
Description
1 GROUND
2 REDUCE
WRITE
3 GROUND
4 N/C
5 GROUND
6 N/C
7 GROUND
8 INDEX#
9 GROUND
10 MOTOR
ENABLE
0#
11
GROUND
12 DRIVE SELECT 1#
13
GROUND
14 DRIVE SELECT 0#
15 GROUND
16 MOTOR
ENABLE
1#
17 GROUND
18 DIRECTION#
19 GROUND
20 STEP#
21 GROUND
22 WRITE
DATA#
23 GROUND
24 FDCWE#
25 GROUND
26 TRACK
0#
27 GROUND
28 WRITE
PROTECT#
29 GROUND
30 READ
DATA#
31 GROUND
32 HEAD#
33 GROUND
34 DISK
CHANGE#
