Operator’s Manual – OPTI CCA-TS 7-21
7 DIAGNOSTICS AND TROUBLESHOOTING
7.2.14 Checking the RS232 Interface
The purpose of this test is to check for proper
functioning of the serial interface.
From the <Ready> display, press <System
Manager -> Diagnostics>.
•
Select the <Tests> tab.
•
Press <RS232> to start the test (Fig. 7-20).
• It is important to have pins 2 and 3 (send and
receive - see Appendix A, p. A-6) shorted
together (Fig. 7-21).
• Press
and the system will send out a
test string and check if it can be received.
• The instrument will display a <Pass> or
<Fail> message (Fig. 7-22).
• Press
to return to the <Tests> screen.
Fig. 7-20 RS232 Interface
Fig. 7-21 Jumper Pins 2 to 3
Fig. 7-22 Interface Test Pass