Serial Interface (Com1~Com3); Rs-232 Interface (Com 1); Automatic Data Flow Control Function For Rs-485; Lan: Ethernet Connector - Advantech UNO-1483G Series User Manual

2.2

Serial Interface (COM1~COM3)

The UNO-1483G offers one standard RS-232 and two RS-422/485 (with cable) serial
communication inter-face ports: COM1 ~ COM3.
The IRQ and I/O address range are listed below:
COM1: 3F8h, IRQ4
COM2: 2F8h, IRQ3
COM3: 3E8h, IRQ10
2.2.1

RS-232 Interface (COM 1)

The UNO-1483G offers one RS-232 serial communication interface ports: COM1.
Please refer to Appendix A.3 for their pin assignments.
2.2.2

Automatic Data Flow Control Function for RS-485

In RS-485 mode, the UNO-1483G automatically detects the direction of incoming
data and switches its transmission direction accordingly. So no handshaking signal
(e.g. RTS signal) is necessary. This lets you conveniently build an RS-485 network
with just two wires. More importantly, application software previously written for half
duplex RS-232 environments can be maintained without modification.
2.3

LAN: Ethernet Connector

The UNO-1483G is equipped with 4 x Gigabit LAN controllers. The controller chip
used is the Intel Ethernet controller that is fully compliant with 802.1Qav, IEEE1588/
802.1AS, 802.3az standards and Intel® AMT function (Intel AMT function accompa-
nies certain SKU's of Core i processors). The Ethernet port provides four standard
RJ-45 jacks on the front I/O and LED indicators in front of the connector to show its
status of Link (100Mbps orange LED, 1000Mbps green LED) and Active (flashing
green LED) status.
2.4

Power Connector

The UNO-1483G comes with a Phoenix connector that carries 12/24VDC external
power input, and features reversed wiring protection.Therefore, it will not cause any
damage to the system by reversed wiring of ground line and power line. Please refer
to Appendix A.
2.5

USB Connector

The USB interface supports Plug and Play, which enables you to connect or discon-
nect a device, without turning off the computer. This provides four USB connectors,
which gives complete Plug & Play and hot swapping for up to 127 external devices.
Two of the four connectors are compatible with USB3.0 devices. The USB interface
is USB EHCI, Rev. 2.0 compliant. The USB interface can be disabled in the system
BIOS setup. Please refer to Appendix A for its pin assignment.
2.6

Display Connector

The UNO-1483G provides a DisplayPort and VGA controller for a high resolution
interface. It supports up to full HD resolution for two independent displays.
7 UNO-1483G User Manual