Keysight U8903B, Руководство пользователя

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7 Test Sequence Application
300 Keysight U8903B User’s Guide
Table 7-6 TSA > Project > Test > IO Configuration > Output Configuration menu description (Analog)
Menu Description
Channels
Press the Channels softkey to select the number of output channels in use.
– None (External)
Disable the generator outputs and configure the analyzer for external source (open-loop) measurements.
– 1
– 2
Connector
Press the Connector softkey to select the output connector type.
– Bal
Balanced mode outputs a pair of differential signals which are equal in amplitude but 180 degrees out of phase on the
XLR positive and negative pins.
– UnBal
Unbalanced mode outputs a signal referenced to ground on the BNC output connector.
– Com
Common mode outputs a pair of equal amplitude and in-phase signals on the XLR positive and negative pins. The
common mode test signal is applied to both pins 2 and 3 or the XLR connector, while pin 1 is connected to the return
signal.
– IEC60268
The common mode test signal is applied to both pins 2 and 3 or the XLR connector, while pin 1 is connected to the
return signal. An additional 10 Ω output series resistance is added to pin 2 or 3.
Impedance
Press the Impedance softkey to select the output impedance value.
For Bal, Com, and IEC60268
– 600
Ω
– 100 Ω
– 40
Ω
For UnBal
– 600
Ω
– 50 Ω
– 20
Ω
IEC60268 10
Ω
Press the IEC60268 10
Ω
softkey to select the additional 10
Ω
output series resistance for pin 2 or 3 of the XLR connector
in the common IEC60268 configuration. This setting is only available when the output connector type is set to IEC60268.
– Pin2
Additional 10 Ω is added to pin 2.
– Pin3
Additional 10 Ω is added to pin 3.
Ground
Press the Ground softkey to select the grounding type.
– Float
In the floating grounding type, the signal return line (XLR pin 1 for balanced output or BNC return for unbalanced
output) is not grounded to the chassis earth and is “floating”.
– Ground
In the ground grounding type, the signal return line (XLR pin 1 for balanced output or BNC return for unbalanced output)
is connected to the chassis earth.
Max Voltage
Press the Max Voltage softkey to set the maximum voltage. The maximum voltage value set will limit the maximum
amplitude output from the generator and prevent any excessive high voltage values from damaging the DUT.
Reference
Press the Reference softkey to set the output references for generator.
– Impedance
Set the reference impedance for the unit conversion of dBm measurements.