4115T Light Duty Industrial PC
Connector Pin Outs
The following describes how to connect peripherals, switches and indicators to POS-478 board.
Floppy Disk Drive Connector
POS-478 board is equipped with a 34-pin daisy-chain drive connector cable.
Chapter 3 – POS-478 CPU Control Board and BIOS Setup
FDD1: FDD Connector
PIN
Description
1
GROUND
3
GROUND
5
GROUND
7
GROUND
9
GROUND
11
GROUND
13
GROUND
15
GROUND
17
GROUND
19
GROUND
21
GROUND
23
GROUND
25
GROUND
27
GROUND
29
GROUND
31
GROUND
33
GROUND
21
PIN
Description
2
REDUCE WRITE
4
N/C
6
N/C
8
INDEX#
10
MOTOR ENABLE A#
12
DRIVE SELECT B#
14
DRIVE SELECT A#
16
MOTOR ENABLE B#
18
DIRECTION#
20
STEP#
22
WRITE DATA#
24
WRITE GATE#
26
TRACK 0#
28
WRITE PROTECT#
30
READ DATA#
32
SIDE 1 SELECT#
34
DISK CHANGE#
143926(A)
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