User`s guide

2-4 Agilent E6432A Microwave Synthesizer User’s Guide

Hardware Front Panel Connectors

Access LED

Access LED, available from the Hardware Front Panel, indicates that

the synthesizer has been accessed with a read or write over the VXIbus.

Related Topics

Hardware Front Panel Connectors

Error LED

Error LED, available from the Hardware Front Panel, indicates a

programmable or configuration error has occurred; this Error LED

remains active until the error queue has been cleared.

Indications include the following:

• Invalid function call to a VXIplug&play function.

This includes an invalid parameter set or an invalid function call

order; for example, a function being called prior to calling the

HPE6432_init function.

• 100 MHz reference unlock (when external reference is selected)

• ALC high and low unlevel (when external leveling is selected)

TIP To help identify and clear any of the above errors:

❏ Using the Soft Front Panel, refer to the procedure on how “To

Display a List of the Synthesizer’s Error Queue Messages” on page

3-113.

❏ Using the VXIplug&play commands, use the HPE6432_error_query

command.