Chapter 4: Appendix D - RS-485/422 Option

4-13

Figure 15: RS-485/422 SLIM partial schematic

RS-485/422 SLIM partial schematic

 

1

TX+

 

DSR1

TxD load

 

 

TX1

 

TX-

 

 

 

 

DTR1

 

150R

RTS+

 

 

2

 

 

 

 

 

 

 

 

 

RTS-

 

RTS1

150R

 

 

 

 

RTS load

 

 

 

DB9

 

 

 

Connector

 

 

 

 

1

 

 

UART

 

6

 

 

 

2

 

 

 

 

7

 

 

 

 

3

 

 

 

 

8

 

 

 

 

4

 

 

+5V

 

9

 

 

 

 

5

100

RX+

 

 

 

RX1

 

 

 

RX-

+5V

 

GND

 

 

 

 

 

1K8

3

CTS+

CTS1

 

 

 

 

CTS-

 

 

 

 

150R

 

 

 

5

 

4

+5V

 

 

1K8

 

 

 

 

 

50nF

 

50nF

CTS load

 

and bias

 

 

 

 

 

1K8

 

6

 

 

RxD load

 

 

GND

 

150R

 

 

and bias

 

 

 

 

 

1K8

 

GND

Note: The RS-485/422 Serial Line Interface Module controls four ports, and therefore the schematic shows only a portion of the circuit.

Intellicon-NT960/PCI User's Manual, ver. 0.02