GW Instek GDS-800 Series User Manual - Manual (Page 69)

GDS-800 Series Digital Storage Oscilloscope Operation Manual
69
7. 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 GDS-800 series 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 7-1: Pin assignments for the GDS-820’s RS232 connector
DB9 to DB9 Wiring
The wiring configuration is used for computer with DB9 connectors that configured as
Data Terminal Equipment.
GDS-800 series
(DB9, DTE)
Computer
(DB9, DTE)
Pin2
Pin3
Pin2
Pin3
Pin5 Pin5
Figure 7-2: DB9 to DB9 wiring