ACU-RITE 200S READOUTS Manuale Utente Scaricare il pdf (Pagina 85)

200S 71

II - 4 I/O Connections

Wiring the Serial communication cable

The wiring of the serial communication cable depends on the device

being connected (see technical documentation for external device)

Pin assignment

Signal

Pin layout of RS-232-C / V.24 data interface.

Pin connection for serial port with handshaking.

Pin Assignment Function

1 No assignment

3 TXD - Transmitted Data

2 RXD - Received data

7 RTS - Request to send

8 CTS - Clear to send

6 DSR - Data set ready

5 SIGNAL GND - Signal ground

4 DTR - Data terminal ready

9 No assignment

Pin connection for serial port without handshaking.

Signal Signal Level “1” =

“active”

Signal level “0” =

“inactive”

TXD, RXD -3 V to - 15 V +3 V to + 15 V

RTS, CTS

DSR, DTR

+3 V to + 15 V -3 V to - 15 V

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 ... 97 98

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ACU-RITE 200S READOUTS Manuale Utente Pagina 85