3 pin assignment, 3 characteristics of the rs232 interface – Metrohm 768 KF Oven Manuel d'utilisation

Page 38

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3.3 Characteristics of the RS232 interface

768 KF Oven

35

3.3.3 Pin assignment

E 5

Clear to Send

external

RS 232C Interface

Received Data

E 3

E 4

Request to Send

E 20

Data Terminal Ready

Transmitted Data

E 2

E 6

Data Set Ready

E 7

Signal Ground

E 8

Data Carrier Detect

Transmitted data (TxD)

If no data are transmitted, the line is held in the "ON" condition. Data are

transmitted only when CTS and DSR are in the "ON" condition and DCD is

in the "OFF" condition.

Received data (RxD)

Data are received only when DCD is "ON".

Request to Send (RTS)

ON condition: Instrument is ready to send data.

Clear to Send (CTS)

ON condition: Remote station is ready to receive data.

Data Set Ready (DSR)

ON condition: The transmission line is connected.

Signal ground (GND)

Data Carrier Detect (DCD)

ON condition:The level of the received signal is within the tolerance range

(remote station is ready to send data).

Data Terminal Ready (DTR)

ON condition: Instrument is ready to receive data..

Contact arrangement at the connector (female)

25

14

13

1

View from solder side

K.210.9004 (housing) and K.210.0001

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