GW Instek GFG-3015 - Manual (Page 41)

GFG-3015 p.37
Pin Assignments
The Pin assignments of the RS232 connector on the rear panel for DB-9-D.The
details 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
DB9 to DB9 Wiring
The wiring configuration is used for computer with DB9 connectors that
configured as Data Terminal Equipment.
Figure 6.20.1 DB9 to DB9 wiring
When the GFG-3015 is set up with a RS232 interface, please check the
following points:
Do not connect the output line of one DTE device to the output line of the
other.
Many devices require a constant high signal on one or more input pins.
Ensure that the signal ground of the equipment is connected to the signal
ground of the external device.
Ensure that the chassis ground of the equipment is connected to the chassis
ground of the external device.
Do not use more than 15m of cable to connect devices to a PC.
Ensure the same configurations are used on the device as the one used on
PC terminal.
Ensure the connector for the both side of cable and the internal connected line
are met the demand of the instrument.
Communication Mode
The same baud rate and data format must be set to the instrument and the
computer.
The baud rate of the RS-232 interface can be set as listed in the following table.