18 serial port connector (rs-232/422/485), Table 4-19: rs-232 connector pinouts, Table 4-20: rs-232/422/485 connector pinouts – IEI Integration PCISA-945GSE v1.01 User Manual
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PCISA-945GSE CPU Card
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PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
9
Ground (GND)
10
N/C
Table 4-19: RS-232 Connector Pinouts
4.2.18 Serial Port Connector (RS-232/422/485)
CN Label:
COM2
CN Type:
14-pin header (2x7)
CN Location:
See Figure 4-20
CN Pinouts:
7
The serial port connector provides an RS-232, RS-422 or RS-485 communications
channel.
Figure 4-20: RS-232/422/485 Connector Pinout Locations
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
Data Carrier Direct (DCD)
2
Data Set Ready (DSR)
3
Receive Data (RXD)
4
Request To Send (RTS)
5
Transmit Data (TXD)
6
Clear To Send (CTS)
7
Data Terminal Ready (DTR)
8
Ring Indicator (RI)
9
Ground (GND)
10
Ground (GND)
11
TXD485+
12
TXD485-
13
RXD485+
14
RXD485-
Table 4-20: RS-232/422/485 Connector Pinouts