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Chapter 3. Hardware Description
3.2 Connector Specification
3.2.1
DB9 Connector Specification
Pin specifications and signal definition of the DB9 connector are as follows:
1. DB9 Serial Connector
Figure 3-3.
DB9 Serial Connector
2. RS232 Signal Specification
Pin
Signal
Description
1
DCD
Data Carrier Detection (Input)
2
RXD
Receive Data (Input)
3
TXD
Transmit Data (Output)
4
DTR
Data Terminal Ready (Output)
5 GND
Ground
6
DSR
Data Set Ready (input)
7
RTS
Request to Send (Output)
8
CTS
Clear to Send (Input)
9
RI
Ring Indicator (Input)
3-3
Содержание WiComm-1
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