Iei-integration NANO-9452 v1.12 Bedienungsanleitung Seite 73

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NANO-9452 EPIC Motherboard
Page 55
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
13 RXD485+ 14 RXD485#
Table 4-19: RS-232/RS-485 Serial Port Connector Pinouts
4.2.18 Serial Port Connector (COM 3 and COM 4)
CN Label:
COM3 and COM4
CN Type:
10-pin header (2x5)
CN Location:
See
Figure 4-20
CN Pinouts:
See
Table 4-20
The 10-pin serial port connector provides a second RS-232 serial communications
channel. The COM 2 serial port connector can be connected to external RS-232 serial port
devices.
Figure 4-20: COM3 and COM4 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 NC
Table 4-20: COM3 and COM4
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