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Specifications
24
RS232 15-Pin Connector Pinout
10
11
6
1
5
15
PIN
EIA
CCIT
Designation
1
DCD
109
Data Carrier
Direct
6
RX
104
Receive Data
(out)
2
TX
103
Transmit Data
8
DTR
108.
2
Data Terminal
Ready
9
GND
Signal Ground
7
DSR
107
Data Set Ready
12
RTS
105
Request to
Send
11
CTS
106
Clear to Send
RS
232
13
RI
125
Ring Indicator
4
MICROPHONE (+)
5
MICROPHONE (-)
10
SPEAKER (+)
Audio
15
SPEAKER (-)
Boot
3
BOOT
Reset
14
RESET