古董电容键盘 AST KB101-如何判断AT键盘针脚？

gxj411

板子上写着1-6 ，有可能1 正 2 负，5-6data和cl,有表没？打一伙，找个LED插上去试试也好


PC/AT 键盘接口的引脚定义：

Pin

Name

Description

Technical

1

CLOCK

Clock

CLK/CTS, Open-collector

2

DATA

Data

RxD/TxD/RTS, Open-collector

3

n/c

Not connected

Reset on some very old keyboards.

4

GND

Ground

　

5

VCC

+5 VDC

PC/XT 键盘接口的引脚定义稍有不同：

Pin

Name

Description

Technical

1

CLOCK

Clock

CLK/CTS, Open-collector

2

DATA

Data

RxD/TxD/RTS, Open-collector

3

Reset

Reset

　

4

GND

Ground

　

5

VCC

+5 VDC