Communications (RS-232, Centronics, and RS-232/USB)
ID TEK/TPS 2024
B,CF:91.1CT,FV:V10.00
NOTE. This manual contains brief information about command entry. (See
page 78, Command Entry.)
For complete command information, refer to the TDS200, TDS1000/2000,
TDS1000B/2000B, TDS2000C, and TPS2000/TPS2000B Series Digital
Oscilloscopes Programmer Manual.
RS-232 Troubleshooting
If the oscilloscope and the external device (computer or printer) have trouble
communicating, follow these steps:
1. Check that you are using the correct RS-232 cable. Determine whethe r your
external device requires a null-modem or a straight-through connection. (See
page 73, SelectinganRS-232Cable.)
2. Check that the RS-232 cable is firmly connected to both the oscilloscope and
the correct port on the external device.
3. Check that the printer or the program on the personal computer is using the
same port to which you connected the RS-232 cable. Try your program or
printer again.
4. Check that the oscilloscope RS-232 settings match the settings used by the
external device:
a. Determine the RS-232 settings for the external device.
b. Push the Utility button to see the Utility Menu.
c. Push ► Options ► RS232 Setup.
d. Set the oscilloscope to match the s ettings of the external device.
e. Tr
y the free Open Choice Desktop software again.
f. Try your terminal-emulator program or printer again.
5. Try setting both the oscilloscope and the external d evice to a slower baud rate.
6. If you receive only part of the printer fi le, try these remedies:
a. Lengthen the timeout for the external device.
b. Make sure the printer is set to receive a binary file, not a text file.
76 TPS2000B Series Digital Oscilloscope User Manual
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