Termination Resistor (Sw3); Table 2.1:Terminal Resistor For Com3; Lan: Ethernet Connector; Power Connector - Advantech UNO 2173A/AF User Manual

2.3.3 Termination Resistor (SW3)

The onboard termination resistor (120 ohm) for COM3 can be used for
long distance transmission or device matching. (Default Open.)
Table 2.1: Terminal Resistor for COM3
SW3
DIP1 ON
OFF
DIP2 ON
OFF

2.4 LAN: Ethernet Connector

UNO-2173A is equipped with one Giga LAN controller and UNO-
2173AF has two. The controller chip used in both model is RTL8111C
Ethernet controller that is fully compliant with IEEE 802.3u 10/100Base-
T CSMA/CD standards and IEEE 802.3ab specification for 1000Mbps
Ethernet. 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 Power Connector

The UNO-2173A/AF comes with a Phoenix connector that carries 9~36
VDC 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.5

2.6 PS/2 Keyboard and Mouse Connector

The UNO-2173A/AF provides a PS/2 keyboard and mouse connector. A
6-pin mini-DIN connector is located on the rear panel. The UNO-2173A/
AF comes with an adapter to convert from the 6-pin mini-DIN connector
to two 6-pin mini-DIN connectors for PS/2 keyboard and PS/2 mouse
connection.
UNO-2173A/AF User Manual
Status
Add termial resistor on Tx+/Tx- of RS-422 or
Data+/Data- of RS-485
Open (default)
Add termial resistor on Rx+/Rx- of RS-422
Open (default)
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