IDTECK Star 505R User Manual page 44

12.4.8 COMMUNICATION TEST
☞. Before this communication test, connect the RS232-RX
COMM TEST
and RS232-TX wires together. Then press <ENT> key.
☞. This test is a loop test and 505R sends a character to
TX data = 0
RS232-TX and check whether the RS232-RX receive the
COMM fail
character or not.
If you have an error, please contact our service facility.
☞. After the test is done, LCD will display "COMM test
COMM test pass!!
pass!!". Press any key to return to the setup menu.
Press any key...
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