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Electronic specifications

Serial port connector

Pin

Signal Name

Description

 

 

 

1

DCD

Data Carrier Detect1

 

 

 

2

RXDATA

Receive Data

 

 

 

3

TXDATA

Transmit Data

 

 

 

4

DTR

Data Terminal Ready

 

 

 

5

GND

Ground

 

 

 

6

DSR

Data Set Ready

 

 

 

7

RTS

Request To Send

 

 

 

8

CTS

Clear To Send

 

 

 

9

RI

Ring Indicate

 

 

 

Keyboard and Mouse connectors

Pin

Signal Name

 

 

1

Keyboard (or mouse) data

 

 

2

NC

 

 

3

GND

 

 

4

+5 V

 

 

5

Keyboard (or mouse) clock

 

 

6

NC

 

 

External USB connectors

Pin

Signal Name

 

 

1+5 V

2USBN Data-

3 USBN Data+

4 GND

99