Agilent Technologies E4418B User Manual page 150

Menu Reference
Front Panel Menu Reference "System/Inputs" Menu
length, stop bits and parity; then reads back from the UART to
check that the settings are correct.
Local Loop Back
o
Press this softkey to initiate a UART local loop back diagnostic
with the transmitter (Tx) internally connected to the receiver
(Rx).
RS232 Loop Back
o
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
o
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
n
Press this softkey to access a menu which allows you to set the defaults
for contrast and brightness.
u
Press this softkey to increase the display contrast.
u
Press this softkey to decrease the display contrast.
Set Contrast
u
Press this softkey to set the default contrast to that currently displayed.
Note, this key changes the factory default setting.
3-28
the results.
the results.
Agilent E4418B User's Guide