Pin assignments, Db9 to db9 wiring – GW Instek GDS-2000 series Programming manual User Manual

Page 3

GDS-2000 Series Programming Manual

Notes for RS-232 Configuration

This oscilloscope contains a DB 9-pin, male RS-232 connector for serial

communication with a computer or terminal. The RS-232 interface of this

oscilloscope is configured as an RS-232 “Data Terminal Equipment”, so that data

is sent from pin 3 and received on pin 2. For remote controls, the RS-232 interface

has to be connected with a computer or terminal.

Pin Assignments

The pin assignments for RS-232 interface of the oscilloscope are listed below.

1. No

connection

2. Receive

Data(RxD)

(input)

3. Transmit

Data(TxD)

(output)

4. No

connection

5. Signal

Ground

(GND)

6. No

connection

7. No

connection

8. No

connection

9. No

connection

Figure 1-1: Pin assignments for the RS232 connector

DB9 to DB9 Wiring

The wiring configuration is used for computer with DB9 connectors that configured

as Data Terminal Equipment.

Oscilloscope

(DB9, DTE)

Computer

(DB9, DTE)

Pin2

Pin3

Pin2

Pin3

Pin5

Figure 1-2: DB9 to DB9 wiring