Advantech SOM-5786 Manuel d'utilisateur télécharger pdf (Page 23)

15 Chapter 2

2.4 LAN: Ethernet Connector

The UNO-3072LA

is equipped

with

a Realtek

RTL8139C Ethernet LAN

controller

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 Power Inputs

UNO-3072LA 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 Figure 2.11 for location of power

input).

Figure 2.4: Figure Location of Power and grounding

2.5.1 LED and Buzzer for System Diagnosis

In a "headless application" (an application without a monitor display), it

is always difficult to know the system status. Another PC may be needed

to monitor a headless device's status via RS-232 or Ethernet. In order to

solve this problem, UNO-3072LA offers a solution which can turn the

four LED originally used for COM port Tx & Rx to programmable LED

indicators while. They can be programmed to show a systems status by

LED indicator.

177mm

194mm

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Advantech SOM-5786 Manuel d'utilisateur Page 23