C-2 AppendixC DocumentationNumber 3PCI2-0903 Manual
B&BElectronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&BElectronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Start ComTest
1. Make loopback connections.
2. Select Start, Programs, B&B Electronics, ComTest, ComTest.
3. ComTest Starts with a Select Port Window.
4. Select the Com port to access or test. (The drop down box
shows available ports not in use).
5. Click Ok. Configure Port is shown.
6. Select the needed baud rate, parity, data bits, stop bits.
(Defaults are common settings).
7. Type characters – they will appear in the upper window.
8. If performing a loopback test, observe the received characters in
the lower window.
9. Use the Option to set DTR high or low, observe the DSR line
and if connected the DCD line follow. (RS-232 only)
10. Use the Option to set the RTS line high or low, observe the CTS
input line follow. (RS-232 only)
Exit
When testing is completed, close the program.