Nuvo-2000+ Series User’s Manual
Copyright © 2013 Neousys Technology Inc. All Right Reserved.
Page 58 of 78
Chapter 4 BIOS and Driver
4.1 BIOS Settings
Nuvo-2000+ is shipped with factory-default BIOS settings cautiously programmed for best
performance and compatibility. In this section, we’ll illustrate some of BIOS settings you
may need to modify. Please always make sure you understand the effect of change before
you proceed with any modification.
4.1.1 COM1 Operating Mode
COM1 of Nuvo-2000+ supports RS-232 (full-duplex), RS-422 (full-duplex) and RS-485
(half-duplex) mode. You can set the COM1 operating mode via BIOS settings. Another
option in BIOS called “Slew Rate” defines how sharp the rasing/falling edge is for the output
signal of COM1. For long-distance RS-422/485 transmission, you may set the “Slew Rate”
option as “High” to improve signal quality.
.
To set COM1 operating mode:
1. When Nuvo-2000+ boots up, press F2 to enter BIOS setup utility.
2. Go to
[Advanced]
[Peripheral Configuration]
.
3. Set the
[Set COM1 as]
to a proper mode for COM1 of your Nuvo-2000+.
