Menu Reference
Front Panel Menu Reference "System/Inputs" Menu
Agilent E4419B User’s Guide 3-31
❖
Press this softkey to access a menu which gives you a
selection of serial interface tests to perform.
❏
Press this softkey to initiate a test which writes to the
scratch register and reads back. The test also sets the
baud rate, word length, stop bits and parity; then reads
back from the UART to check that the settings are
correct.
❏
Press this softkey to initiate a UART local loop back
diagnostic with the transmitter (Tx) internally connected
to the receiver (Rx).
❏
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 the results.
Cancel Test - quit test and return to previous menu.
❏
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.
Serial Interface
UART Config
Local Loop Back
RS232 Loop Back
RS422 Loop Back
HP4402.book Page 31 Thursday, November 30, 2000 1:39 PM
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