Agilent Technologies E4419B User Manual page 167

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E4419B Power Meter User's Guide
RS232 Loop Back
◆
Press this softkey to initiate an RS232 loop back test on the
serial interface port. A pop-up message appears stating that a
test connector must be in place. The test connector must have
the following pins jumpered: Tx (3) and Rx (2), RTS (7) and
CTS (8), DTR (4) and DSR (6).
This test will only run if the RS232 interface is currently
selected.
A softkey menu offers the following choices:
Run Test - performs the RS232 loop back test and reports
Cancel Test - quit test and return to previous menu.
RS422 Loop Back
◆
Press this softkey to initiate an RS422 loop back test on the
serial interface port. A pop-up message appears stating that a
test connector must be in place. The test connector must have
the following pins jumpered: Tx– (4) and Rx– (2), Tx+(3) and
Rx+(6), RTS–(9) and CTS–(1), RTS+(7) and RTS–(8).
This test will only run if the RS422 interface is currently
selected.
A softkey menu offers the following choices:
Run Test - performs the RS422 loop back test and reports
Cancel Test -quit test and return to previous menu.
Display
Press this softkey to access a menu which allows you to set the defaults for
contrast and brightness.
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Press this softkey to increase the display contrast.
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Press this softkey to decrease the display contrast.
Set Contrast
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Press this softkey to set the default contrast to that currently displayed.
Note, this key changes the factory default setting.
the results.
the results.
Menu Reference 3
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