Remote Operations
How to Set up the RS-232 UUT Port for Remote Control 5
5-15
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6. Click the Command2 button. Observe the Calibrator Control Display changes back to
the reset condition (below).
(The Command3 button is used for RS-232 UUT port testing later in this chapter.)
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7. Close the program by clicking the top-left corner and Close.
How to Set up the RS-232 UUT Port for Remote Control
The SERIAL 2 TO UUT serial data port connects a UUT to a PC or terminal via the
Calibrator (Figures 5-1 and 5-2). This “pass-through” configuration eliminates the
requirement for two COM ports at the PC or Terminal. The UUT_* commands (see
Chapter 6) handle the UUT port data flow.
The RS-232 cable length for each port should not exceed 15 meters, although longer
cable lengths are permitted if the load capacitance measured at a connection point
(including signal terminator) does not exceed 2500 pF.
RS-232 UUT Port Setup Procedure
Complete the following procedure to set up the SERIAL 1 FROM HOST port. The
RS-232 parameters you select here must match the parameters set for the PC COM port.
The factory defaults (shown on the display below) are 9600 baud, 8 data bits, 1 stop bit,
and no parity. Other parameters include flow control, EOL (end-of-line) character, and
EOF (end-of-file) characters.
1. Turn the Calibrator power on. You may operate the Calibrator during warmup, but
specifications are not guaranteed until warmup is complete.
2. Press R on the Calibrator front panel.
3. Negotiate the softkey selections shown below to select the serial port for remote
operation, then continue to Step 4.
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