vii Table of Contents
Contents
Chapter 1 Overview ...........................................................2
1.1 Introduction ....................................................................... 2
1.2 Hardware Specifications ................................................... 3
1.3 Safety Precautions ............................................................. 5
1.4 Chassis Dimensions........................................................... 6
Figure 1.1:UNO-2174A Chassis Dimensions................. 6
Figure 1.2:UNO-2178A Chassis Dimensions................. 6
1.5 Accessories........................................................................ 7
Chapter 2 Hardware Functionality ................................10
2.1 Introduction ..................................................................... 10
Figure 2.1:Front Panel of UNO-2174A ........................ 10
Figure 2.2:Front Panel of UNO-2178A ........................ 10
Figure 2.3:Rear Panel of UNO-2174A ......................... 10
Figure 2.4:Rear Panel of UNO-2178A ......................... 10
2.2 UNO-2174A/2178A Interface (COM1~COM6)............. 11
2.3 RS-232/422/485 Interface (COM A ~ B)........................ 11
2.3.1 16C550 UARTs with 128-byte standard ...................... 12
2.3.2 RS-422/485 detection ................................................... 12
2.3.3 Automatic Data Flow Control Function for RS-485 .... 12
2.4 Terminal Resistor Setup for RS-422/485 ........................ 13
2.5 RS-232/422/485 Selection............................................... 14
2.5.1 COM1 - 6 ...................................................................... 14
Figure 2.5:RS-232 Jumper Setting (COM1,2).............. 14
Figure 2.6:RS-232 Jumper Setting (COM3-6) ............. 14
Figure 2.7:RS-485 Jumper Setting (COM1,2).............. 14
Figure 2.8:RS-485 Jumper Setting (COM3-6) ............. 15
2.5.2 COM A and COM B..................................................... 15
2.5.3 RS-485 Auto Flow & RS-422 Master/Slave Mode ...... 16
Table 2.1:Auto Flow & Slave/Master Selection........... 16
2.6 LAN: Ethernet Connector .............................................. 16
2.7 Power Connector ............................................................. 17
2.8 PS/2 Keyboard and Mouse Connector ............................ 17
2.9 USB Connector ............................................................... 17
2.10 VGA Display Connector ................................................. 17
2.11 Battery Backup SRAM (Reserved)................................. 17
2.12 RTC Battery Specification .............................................. 18
Figure 2.9:RTC Battery Location ................................. 18
2.13 Power Button / Power Management................................ 18
2.14 Reset Button .................................................................... 19
2.15 HD Audio ........................................................................ 19