18 Keysight M8194A 120 GSa/s Arbitrary Waveform Generator User Guide
1 Introduction
• In ‘Dual Channel’ mode the differential outputs Data Out Channel 1
and Data Out Channel 2 are enabled for analog data generation.
Data Out Channel 3 and Data Out Channel 4 are disabled.
• In ‘Dual Channel with Marker’ mode the differential outputs Data
Out Channel 1 and Data Out Channel 2 are enabled for analog data
generation. One or two digital markers can be generated at Data
Out Channel 3 and Data Out Channel 4.
• Option -004: The differential output Data Out Channel 1, Data Out
Channel 2, Data Out Channel 3 and Data Out Channel 4 are enabled for
analog data generation.
• Sync In A 1 2 3 4 - This port is reserved for the future use.
• Sync Out A 1 2 3 4 - This port is reserved for the future use.
• Sync In B - This port is reserved for the future use.
• Sync Out B - This port is reserved for the future use.
Data Out LEDs
Table 5 Data out LEDs
The Data Outputs can be used differentially or single-ended. In case the
output is used single-ended, the unused output must be terminated with
50 Ohm to GND to achieve optimum signal quality.
State/Color Meaning Description
Off Output disabled Represents the state ‘Disable’. Selectable from Soft Front Panel or SCPI. The output amplifier is not
powered.
After Power-On the LED is off.
After successful initialization of the M8194A, the LED turns to its default state which is OFF.
ON, Green Output enabled Represents the state ‘Enable’. Selectable from Soft Front Panel or SCPI:
• Output amplitude is equal to the adjusted amplitude.
• Offset is equal to the adjusted amplitude.
• External Termination voltage is equal the adjusted termination voltage.
On, Red Protection circuit
active
Error condition such as:
• The externally applied termination voltage significantly differs from the adjusted termination
voltage.
• External termination resistor significantly differs from 50 Ohm.
User interaction is required to remove the externally applied error condition. After removal, the user
must actively enable the output again.
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