CONEL CGU 04i [12/56] Cgu 04i description

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CGU 04i DESCRIPTION

2.7.1 PORT1 (PORT2) connector - RS232

Panel socket RJ45 (RS232 – DCE - Data Communication Equipment).

number

Signal

mark

Description

Data flow

direction

1 RTS Request To Send Input

2 CTS Clear To Send Output

3 DTR Data Terminal Ready Input

4 DSR Data Set Ready – connected to +4 V through 330 Ohm Output

5 GND GROUND – signal ground

6 RXD Receive Data Output

7 CD Carrier Detect Output

8 TXD Transmit Data Input

Example of the meter connection to the CGU 04i:

Meter

Pin 1

–

RTS

Pin 2 – CTS

Pin 3 – DTR

Pin 4 – DSR

Pin 5 – GND

Pin 6 – RXD

Pin 7 – CD

Pin 8 – TXD

Modem CGU 04i

GND

RXD

TXD