Advantech UNO 2173A/AF user manual RS-232 Standard Serial Port COM1~COM2

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A.3 RS-232 Standard Serial Port (COM1~COM2)

Table A.4: RS-232 standard serial port pin assignments

Pin	RS-232 Signal Name

1DCD

2RxD

3TxD

4DTR

5GND

6DSR

7RTS

8CTS

9RI

27

AppendixA

Image 35

Contents Intel Atom Fanless Box PC with 1 x LAN, 2 x COM, Mini-PCIe UNO-2173A/AFSupport CopyrightAcknowledgements Product Warranty FCC Class a Technical Support and Assistance Safety Precaution Static ElectricityDeclaration of Conformity Safety Instructions Page Contents Appendix a System Settings and Pin Assignments Overview Introduction Hardware Specifications USB Ports Reserved Functions Battery Backup SRAM* 1MB Printer PortInterface Serial Ports Serial Port SpeedSafety Precautions UNO-2173A Chassis Dimensions Chassis DimensionsUNO-2173AF Chassis Dimensions Accessories Hardware Functionality Front panel of UNO-2173A/AF RS-232 Interface COM1~COM2Automatic Data Flow Control Function for RS-485 RS-422/485 Interface UNO-2173AF1 RS-422/485 Selection Termination Resistor SW3 LAN Ethernet ConnectorPower Connector PS/2 Keyboard and Mouse ConnectorBattery Backup Sram Reserved USB ConnectorVGA Display Connector Output voltage 3 VDC Power Button / Power ManagementLithium Battery Specification Lvds UNO-2173AF Reset ButtonHD Audio UNO-2173AF PCI Express Mini Card SocketPage Initial Setup Chassis Grounding Inserting a CompactFlash CardInstalling a Hard Disk Connecting PowerRear Panel for Antenna Installing a Wireless LAN Card and AntennaWireless Module PCI Express mini card Antenna Bios Setup System Settings and Pin Assignments System I/O Address and Interrupt Assignment Appendix a System Settings and Pin AssignmentsTable A.2 UNO-2173A/AF Interrupt Assignment Label Function Board Connectors and JumpersRS-232 Standard Serial Port COM1~COM2 RS-422/485 Serial Port UNO-2173AF Power Connector PWRTable A.7 Keyboard and Mouse connector pin assignments Table A.9 VGA adaptor cable pin assignment Lvds Lvds and Lvdspwr UNO-2173AFLvdspwr Backlight Control Lvds Power Setting CN17Clear Cmos CN3