User guide

single trigger pulse is sent. If continuous errors are detected, the error out signal
would be a clock signal.
Error Out
Error
detected
Data IN
A
n Errors within
128bit granulation
(n<128)
single error
marking
A
n Errors exceeding 128bit
granulation (n>128)
• Aux Out
This port can be used to output the clock signal or the data signal to another
connected device.
The following figure shows how the clock signal is directed to Aux Out in Clock
mode:
CLK IN
DATA IN
AUX OUT
CDR
CLOCK MODE
Recovered CLK
Comparator
0/1 Threshold
internal
Signal
Analyzer
Data In Port Termination
To ensure a valid setup and to protect the devices from damage, proper termination
must be specified for both Data In connections. You can specify the termination
by entering the termination voltage in the respective field.
C A U T I O N
Selecting the wrong termination may damage your device.
5 Setting up the Error Detector
170 Agilent J-BERT N4903B High-Performance Serial BERT