Advantech PCI-1680U Manual do Utilizador descarregar pdf (Página 26)

PCI-1680U User Manual 20

3.2.1 How to Set Jumpers

You configure your card to match the needs of your application by setting

jumpers. A jumper is the simplest kind of electric switch. It consists of

two metal pins and a small metal clip (often protected by a plastic cover)

that slides over the pins to connect them. To “close” a jumper you con-

nect the pins with the clip. To “open” a jumper you remove the clip.

Figure 3.2: How to Set Jumpers

3.2.2 Terminator Resistor Setup

You can set the terminator resistor if necessary to match impedance. Each

port has a separate resistor.

Table 3.1: PCI-1680U Terminator Resistor Reference

Status Value of Terminator Resistor()

Open mode 0

Close mode 120

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 35 36

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