GW Instek GDS-800 Series Programming Manual - Manual (Page 4)

GDS-806/810/820/840 Programming Manual
3
When the oscilloscope is set up with a RS-232 interface, please check the following
points:
z Do not connect the output line of one DTE device to the output line of the
other.
z Many devices require a constant high signal on one or more input pins.
z Ensure that the signal ground of the equipment is connected to the signal
ground of the external device.
z Ensure that the chassis ground of the equipment is connected to the
chassis ground of the external device.
z Do not use more than 15m of cable to connect devices to a PC.
z Ensure the same configurations are used on the device as the one used
on PC terminal.
z Ensure the connector for the both side of cable and the internal
connected line are met the demand of the instrument.
Computer’s Connection for RS-232
A personal computer with a COM port is the essential facilities in order to operate
the digitizing oscilloscope via RS-232 interface.
The connections between oscilloscope and computer are as follows:
I. Connect one end of a RS-232 cable to the computer.
II. Connect the other end of the cable to the RS-232 port on the oscilloscope.
III. Turn on the oscilloscope.
IV. Turn on the computer.
Figure 1-3, shows the GPIB port and RS-232 port’s locations on the rear panel of
the oscilloscope.