User`s manual
Table Of Contents
- Copyright
- Trademarks
- FCC and DOC Statement on Class B
- Table of Contents
- About this Manual
- Warranty
- Static Electricity Precautions
- Safety Measures
- About the Package
- Before Using the System Board
- Chapter 1 - Introduction
- Chapter 2 - Hardware Installation
- Chapter 3 - BIOS Setup
- Chapter 4 - Supported Software
- Appendix A - NLITE and AHCI Installatoin Guide
- Appendix B - Watchdog Timer
- Appendix C - System Error Message
- Appendix D - Troubleshooting
25
2
Hardware Installation
COM 1 and COM 2 RS232/RS422/RS485 Select
JP3
1-2 On: RS232
(default)
3-4 On: RS422
Half Duplex
5-6 On: RS485
13
5
246
JP3 and JP4 are used to congure COM 1 and COM 2 to RS232, RS422 (Half Du-
plex) or RS485.
The pin function of COM 1 and COM 2 will vary according to their jumper’s set-
ting.
1
6
2
5
JP3 / JP4
COM 2
13
5
13
5
246
246
1 9
2
DCD-
TD
RD
DTR-
GND
RTS-
DSR-
CTS-
RI-
1 9
2
RXD+
N.C.
RXD-
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
1 9
2
DATA+
N.C.
DATA-
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
JP4