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2.2 Pin Configuration
RS-232C
PIN
CONFIGURATION
1
+5 V
2
TXD
3
RXD
4
CTS
5
GND
6
RTS
7
N/C
8
RTS
9
N/C
USB
PIN
CONFIGURATION
1
N/C
2
D-
3
D+
4
GND
Centronics
Pin
SPP Mode
Nibble
In/Out
1
Strobe
N/A
In
2-9
Data 0-7
N/A
In
10
Ack
N/A
Out
11
Busy
N/A
Out
12
Paper Out / End
N/A
Out
13
Select
N/A
Out
14
Ground
N/A
GND
15
No Defined
N/A
N/A
16-17
Ground
N/A
GND
18
No Defined
N/A
N/A
19-30
Ground
N/A
GND
31
No Defined
N/A
N/A
32
Error / Fault
N/A
Out
33-35
Ground
N/A
GND
36
No Defined
N/A
N/A