User guide

Diagram 9. Connections of the De-Emphasis Signal Converter
The Data Output of the Pattern Generator is connected to the Input of the N4916A/
B. The unused output of the Pattern Generator has to be terminated with 50 Ohm.
The N4916A/B provides a differential signal to the DUT.
The N4916A/B is controlled by the Serial BERT via a USB cable connected to ports
at the rear of the instruments.
Diagram 10. Connections of the N4876A 28 Gb/s Multiplexer
The Data In, Aux Data In and Aux Clk In of N4876A has to be connected to Data
Out, Aux Data Out and Aux Clk Out ports of the Serial BERT's, respectively. The
connections should be made using the matched cable kit with the part number
N4915A-011. The Data Output has to be connected to the device under test.
The unused output of the Pattern Generator has to be terminated with 50 Ohm.
The N4876A provides a differential signal to the DUT.
The N4876A is controlled by the Serial BERT via a USB cable connected to ports
at the rear of the instruments.
1 Planning the Test
34 Agilent J-BERT N4903B High-Performance Serial BERT