Microsoft Advantech UNO-3074 Manual De Usuario
17
Chapter 2
2.3.7 Termination Resistor (JP6)
The onboard termination resistor (120 ohm) for COM3/COM4 can be
used for long distance transmission or device matching (Default Open).
used for long distance transmission or device matching (Default Open).
Close: Enable termination resistor.
2.4 LAN: Ethernet Connector
The UNO-3074 is equipped with a Realtek RTL8139C Ethernet LAN con-
troller that is fully compliant with IEEE 802.3u 10/100Base-T CSMA/CD
standards. The Ethernet port provides a standard RJ-45 jack on board, and
LED indicators on the front side to show its Link (Green LED) and Active
(Yellow LED) status.
troller that is fully compliant with IEEE 802.3u 10/100Base-T CSMA/CD
standards. The Ethernet port provides a standard RJ-45 jack on board, and
LED indicators on the front side to show its Link (Green LED) and Active
(Yellow LED) status.
2.5 Onboard Isolated Digital Input
The UNO-3074 has 4 isolated DI channels designated DI0~DI3.
2.5.1 Pin Assignments
The connector type of UNO-3074 is plug-in screw terminal block that
enables you to connect to field I/O devices directly without additional
accessories. Figure 2.4 and Table 2.4 shows its pin assignment as well as
signal description.
enables you to connect to field I/O devices directly without additional
accessories. Figure 2.4 and Table 2.4 shows its pin assignment as well as
signal description.
Figure 2.4: Digital Input Connector Pin Assignments
RS-422
RS-485
COM3
Close A
TX3-TR
Data+, Data-
Close B
RX3-TR
COM4
Close C
TX4-TR
Data+, Data-
Close D
TX4-TR
Note: Please refer to Figure A.3 for location of JP6