Omega Vehicle Security USB-4761 Manuel d'utilisateur télécharger pdf (Page 30)

3.3 Isolated Digital Input Connections

3.3.1 Single-ended Channel Connections

USB-4761 has

8

isolated

digital input channels. Each of isolated digital

input

channel accepts 10~30

V

DC

voltage

inputs, and accept bi-direc-

tional

input.

It

means

that you

can apply positive or negative voltage to an

isolated

input

pin (Vin ). The

figure below shows how

to connect

an

external

input

source to one

of

the card's isolated input channels.

Figure 3.2: Isolated Digital Input

Connections

3.4 Relay Connections

After power on,

the initial relay output status

is shown as below:

Figure 3.3:

Relay Output Channel Connections

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