Bb-electronics Celeron M Universal Network Controller with PC/104 Manuel d'utilisateur télécharger pdf (Page 16)

2.3.5 RS-232/422/485 Selection

COM3 and COM4

support 9-wire

RS-232, RS-422

and RS-485

inter faces.

The system detects

RS-422 or

RS-485 signals automatically in RS-

422/485 mode.

To select

between

RS-422/485 and

RS-232 for COM3, adjust JP4.

To select

between

RS-422/485 and

RS-232 for COM4, adjust JP5.

Jumper

setting for RS-422/485 interface: (Default setting). (JP4

and JP5)

Figure 2.3: RS-422/485 jumper

setting

Jumper

setting for RS-232

interface: (JP4 and JP5)

Figure 2.4:

RS-232 jumper

setting

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Bb-electronics Celeron M Universal Network Controller with PC/104 Manuel d'utilisateur Page 16