Agilent Technologies E4418B User Manual page 162

3 Menu Reference
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A softkey menu offers the following choices:
Run Test - performs the RS232 loop back test and reports the
results.
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 the
results.
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
Press this softkey to set the default contrast to that currently displayed.
Note, this key changes the factory default setting.
• Set Brightness
Press this softkey to set the brightness. Note, this key changes the factory
default setting.
Version
Press this softkey to display: the model number; option structure; serial
number; firmware, bootrom and DSP revisions.
E4418B Power Meter User's Guide