Understanding Front Panel Operation; What Happens At Power-On - Keysight Technologies BT2152A Operating And Service Manual

3 Operating the Analyzer

Understanding Front Panel Operation

What Happens at power-on?

What happens when a test is initiated?
What happens when a test stops?
What happens when the reference temperature exceeds its specification?
What happens when a protection event or error occurs?
The following indicators and controls are on the front panel.
The AUX button is not active, and is reserved for future use.
What happens at power-on?
Turn the unit on with the front-panel Line switch.
It may take about 60 seconds or so for the unit to completely boot up.
When the unit is first turned on, the Power LED turns green, indicating that power is on.
The LAN indicator turns green when the LAN connection is active. Flashing green indicates an active
LXI identification state. Red indicates the LAN is disconnected. Pressing the LAN reset button on the
front panel will attempt to restore the LAN connection. If this does not work, restoring LAN
communication must be done using the test program.
The Ready indicator turns orange, indicating that the unit is warming up. A warm up time of about 1
hour is required for the unit to meet its specified performance. It is possible to send commands and
operate the unit during the warm up time, but it is advisable to allow the unit to fully warm up before
running any test. If power was cycled and off for less than 5 minutes after warmup, subsequent warm
up will be about 30 minutes.
The Ready status is driven by elapsed time. If the unit is powered off and then powered on
again, the Ready LED will again turn orange for about one hour.
The Test and Error indicators should be off. If the Error LED is red, either a protection event or an error
has occurred (see What happens when a protection event or error
34
occurs?).
Keysight BT2152A Operating and Service Guide