User guide

Solving Problems

Solving Problems - Concepts

This section provides information that can help you to troubleshoot the Serial

BERT in case any problems occur.

Setup Problems

Setup Problems - Concepts

You may run into the following problems when setting up the Serial BERT.

Front Panel not Working

If the front panel is not working and a hardware wizard calls on you to install the

driver for an unknown USB device, cancel the hardware wizard and reboot the

instrument.

This might happen if the front panel controller is not initialized correctly at boot

up.

Incorrect Error Detector Input Voltages

The error detector's protection circuit disconnects the input amplifier if the

incoming signal does not lie within the defined input range. In this case, a dialog

box will open that lets you define the input range, sample point 0/1 threshold,

termination voltage and state. When you click OK, the input amplifier will be

reenabled.

Agilent J-BERT N4903B High-Performance Serial BERT

User Guide

Agilent Technologies 469