Acer 486 Specifications download pdf (Page 31)

Chapter 3 Connecting peripherals 23

Computer A Device B

Pin Signal Pin Signal

1 TX- – – 1 TX-

4 RX- – – 4 RX-

2 TX+ – – 2 TX+

3 RX+ – – 3 RX+

5 GND 5 GND

RS-422/RS-485 driver and receiver circuit

The following figure shows the circuits for the card's RS-422 and

RS-485 driver and receiver.

Driver and receiver circuit

Now that you have made all the required external connections,

you can close up your chassis (as described in Chapter 2). If you

are installing any other cards, do it now. You can then power up

your system as described in the next chapter.

Image not available

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Acer 486 Specifications Page 31