Keysight U3020AS26, Руководство пользователя и сервисное руководство

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16 Keysight U3020A User’s and Service Guide
Front and Rear Panel Features
Figure 1 Front panel
Standby switch
Note that this switch is Standby only, not a line switch. The main power cord can be used as the
system disconnecting device. It disconnects the mains circuits from the mains supply.
LAN reset
The LAN reset button restores the instrument's default LAN configuration.
Port select LEDs
The LED's indicate the RF Port path that is presently operational, all other port inputs are
terminated by an internal 50 Ohm load.
Input/Output ports
There are two separate signal channels, A and B. Each channel has one output port and six input
ports. All connectors are 3.5 mm female.
Instrument state LEDs
When the power is applied to the U3020AS26, the instrument enters its power-on sequence which
requires several seconds to complete. The LEDs provide information on the state of the instrument
during power-on and during upgrades of the instrument firmware. Table 7 identifies the instrument
states based on the color and functioning of the LEDs.
CAUTION
Refer to the standard instrument documentation for damage limits to the ports. Verify that your
test setup will not cause those limits to be exceeded.
Output ports
Instrument states LEDs
Standby
switch
LAN
reset Port select LEDS
Input ports