26
Appendix: Connector Interface
9 pin D-SUB
Pin
NO
Signal
Name
I/O Description Characteristics
1 No
connect
2 TX
O
Serial
Data
Output
High: -3V ~ -15V
Low: +3V ~ +15V
3
RX
I Serial Data Input High: -3V ~ -15V
Low: +3V ~ +15V
4 No
connect
5 GND
G Ground
6 No
connect
7 No
connect
8 No
connect
9 No
connect
6 pin mini din
Pin
NO
Signal
Name
I/O Description Characteristics
1 No
connect
2 No
connect
3 GND
G Ground
4
VCC
I
+5V DC Power
Input
DC +5V ± 10%.
5 No
connect
6 No
connect
USB A Type Connector
Pin
NO
Signal
Name
I/O Description Characteristics
1 GND - Ground
Ground
2
D+
I/O
Data plus
Data plus
3
D-
I/O
Data Minus
Data Minus
4
VCC
+
+5V DC Power
Input
+5V DC Power
Input
1
5
6
9
2
3
4
7
8
2
4
6
1
3
5