Advantech UNO 2173A/AF user manual RS-232 Interface COM1~COM2, Front panel of UNO-2173A/AF

Chapter 2 Hardware Functionality

2.1 Introduction

The following two figures show the connectors on UNO-2173A/AF. The following sections give you detailed information about function of each peripheral.

Figure 2.1: Front panel of UNO-2173A/AF

Figure 2.2: Rear panel of UNO-2173AF

2.2 RS-232 Interface (COM1~COM2)

The UNO-2173A/AF offers two standard RS-232 serial communication interface ports: COM1 and COM2. Please refer to A.3 for their pin assignments.

IRQ and Address Setting

The IRQ and I/O address range of COM1 and COM2 are listed below: COM1: 3F8H, IRQ4

COM2: 2F8H, IRQ3

UNO-2173A/AF User Manual 10