Rs-232 Troubleshooting - Agilent Technologies 34420A User Manual

Chapter 4 Remote Interface Reference
RS-232 Interface Configuration

RS-232 Troubleshooting

Here are a few things to check if you are having problems using the
RS-232 interface. If you need additional help, refer to the documentation
that came with your computer.
Verify that the meter and your computer are configured for the same
baud rate, parity, and number of data bits. Make sure that your
computer is set up for 1 start bit and 2 stop bits (these values are fixed
on the meter).
Make sure to execute the SYSTEM:REMOTE command to place the
meter in the REMOTE mode.
Verify that you have connected the correct interface cable and
adapters. Even if the cable has the proper connectors for your system,
the internal wiring may not be correct. The 34398A Cable Kit can
be used to connect the meter to most computers or terminals.
Verify that you have connected the interface cable to the correct serial
port on your computer (COM1, COM2, etc).
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