5502A
Operators Manual
5-12
Verify the RS-232 Host Port
Choose or adapt one of the subsequent procedures to verify the Calibrator RS-232 Host
port connected to a PC COM port. A typical connection is shown in Figure 5-4. Note that
a null modem cable is used for connection. (See Appendix C for information about
RS-232 cables and connectors.)
UUT
SERIAL 1
FROM HOST
Port
5502A Calibrator
Controller
COM Port
Null Modem Cable
gjh044.eps
Figure 5-4. RS-232 Host Port Verification
Terminal This procedure uses the Terminal accessory supplied with Windows (or equal)
to verify RS-232 Host port operation. To use this method, you must select term as the
Remote I/F in Step 4 in the procedure “RS-232 Host Port Setup Procedure.”
Visual Basic This procedure uses Visual Basic (see Appendix D) to verify RS-232 Host
port and RS-232 UUT port operation.
Verify RS-232 Host Port Operation with a Terminal
Complete the subsequent procedure to verify RS-232 Host port operation with the
Windows Terminal accessory (or equal).
1. Complete the “RS-232 Host Port Setup Procedure” before in this chapter to set up the
Calibrator for RS-232 Host port operation. Write down the RS-232 Host port
parameters that you selected in this procedure.
2. Connect the selected COM port on the PC to the Calibrator SERIAL 1 FROM HOST
port with a standard null-modem RS-232 cable. (See Appendix C for information on
RS-232 cables and connectors.)
3. Open Windows to the Program Manager screen on your PC.
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