Metrohm 765 Dosimat User Manual download pdf (Page 52)

4.4. Pin assignment of the RS232 / I/O socket

765 Dosimat

4.4.2 RS232 interface, 25 and 8 pin sockets

Transmitted Data (TxD).

If no data are transmitted, the line is held in the “ON” condi-

tion. Data will only be sent when CTS is in the ”ON” condi-

tion.

Received Data (RxD)

Request to Send (RTS)

ON condition: Titrino is ready to send data.

Clear to Send (CTS)

ON condition: Remote station is ready to receive data.

Signal ground (GND)

Data Terminal Ready (DTR)

ON condition: Instrument is ready to receive data.

Data Set Ready (DSR)

ON condition: Communication channel is connected.

Received Line Signal Detector (RLSD)

ON condition: The connected device is ready to send data.

Protective earthing

Direct connection from cable plug to the protective ground of the in-

strument.

Polarity allocation of the signals

- Data lines (TxD, RxD)

voltage negative (<-3 V): signal state ”ON”

voltage positive (>+3 V): signal state ”ZERO”

- Control or message lines (CTS, RTS, DTR, DSR, RLSD)

voltage negative (<-3 V): OFF state

voltage positive (>+3 V): ON state

In the transitional range from +3 V to -3 V the signal state is unde-

fined.

A19

and

A4/5

and

A23

and

A14

and

A25

and

A24

and

A22

and

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 65 66

Comments to this Manuals

No comments

Metrohm 765 Dosimat User Manual Page 52

Comments to this Manuals

Related products and manuals for Equipment Metrohm 765 Dosimat