18 Keysight E5055A SSA-X Signal Source Analyzer
Installation
Starting the E5055A
1-
Starting the E5055A
This section describes how to turn ON/OFF the E5055A power and how to cut
off the power supply in the case of emergency.
Turning the Power ON and OFF
The standby switch can turn ON/OFF the E5055A. The color on the button
shows the status, as indicated below:
Perform the following steps to turn the power ON or OFF.
Turning the Power ON
Step 1. Press the standby switch once. It changes to green color.
This operation turns ON the power, and the E5055A starts the self-test.
Step 2. Confirm that the self-test indicates normal operation.
Normal operation is confirmed by the self-test if no error message appears.
Turning the Power OFF
Step 1. To turn OFF the power of the E5055A, first, press this standby switch or send
a shutdown command from the external controller to activate the shutdown
process (the process of software and hardware necessary to turn OFF the
power supply). This puts the E5055A into the standby state and the button
changes to orange color.
Indicator Color Description
Green Normal power on status
Orange Standby status
Orange + Green Illegal power on status
Under normal use, never directly interrupt the power supply to the power
cable receptacle on the rear panel when the power supply is turned ON.
If you directly interrupt the power supply to the power cable receptacle
when the power supply is turned ON, the shutdown process will not work.
This could damage the software and hardware of the E5055A and lead to
device failure.
Turning ON the power supply after a faulty shutdown may cause the
system to start up in a condition called "safe mode." If this occurs, first
shut down the system to set it to the standby state and then turn ON the
power supply again to start up the system in normal mode.
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