User manual
Table Of Contents
- Chapter 1 Overview
 - Chapter 2 Hardware Functionality
- 2.1 Introduction
 - 2.2 RS-232/422/485 Interface (COM1~COM2)
 - 2.3 Optional RS-232 Interfaces (COM3~COM4)
 - 2.4 LAN: Ethernet Connector
 - 2.5 Power Inputs
 - 2.6 USB Connector
 - 2.7 DVI-I Display Connector
 - 2.8 Reset Button
 - 2.9 Power Button
 - 2.10 Audio
 
 - Chapter 3 Initial Setup
 - Appendix A System Settings and Pin Assignments
- A.1 System I/O Address and Interrupt Assignments
 - A.2 Board Connectors and Jumpers
 - A.3 RS-232 Standard Serial Port (COM3~COM4)
 - A.4 RS-232/422/485 Serial Port (COM1~COM2)
 - A.5 Ethernet RJ-45 Connector (LAN1~LAN2)
 - A.7 PS/2 Keyboard and Mouse Connector
 - A.8 USB Connector (USB1~USB4 & CN7)
 - A.9 VGA Display Connector
 
 - Appendix B Programming the Watchdog Timer
 

UNO-3072LA User Manual 16
Figure 2.5: Programmable LED
In order to use programmable LED, user needs to change BIOS setting to 
switch the LED for COM port Tx & Rx to programmable LED function. 
Please follow the steps below:
1. Boot up or reset the system, press Del to enter into BIOS
2. Select Integrated Peripherals 
→ Onboard Device → LED Select, 
Default setting is "Comport TX-RX", change the setting to "Pro-
grammable LED".
3. Press F10 or Back to "Save and Exit Setup" to finish setup change.
(Please install DI/O driver from the UNO CD to use these example)
Table 2.2: LED Control Register
212H R/W Diagnostic / Programmable LED Register
x x x x P1 P2 P3 P4
Note: Px: = 0, DIAG LED disable
 = 1, DIAG LED enable
Note: UNO-3072LA provides built-in examples to show how to con-
figure DIAG LED and Buzzer. Refer to console mode exam-
ples in C:\Program 
Files\Advantech\UNO\UNO_IsaDIO\Examples\Console.










