User guide
Table Of Contents
- 1 Getting Started
- 2 N4962A System Overview
- 3 System Details and Performance Specifications
- 4 Operation
- 5 Remote GPIB Interface
- 6 Returning the N4962A Serial BERT to Agilent Technologies

Operation
44
Serial BERT 12.5 Gb/s User Guide
4.2.5 Front Panel – Display Selection Controls
Figure 12. N4962A front panel – display selection controls
Table 15. N4962A front panel – display selection controls
Text
Type
Description
Default
Display
-
>
Scroll
UP and DOWN
buttons
and 6 lights
Buttons select the measurement or
configuration option to display on the
display panel:
• UP selects the previous display
item;
• DOWN selects the next display
item.
The selection process wraps around the
display options (pressing DOWN at the last
item selects the first item).
The display options are:
• BER
Displays the current measured bit error rate
(BER), defined as the total number of bit
errors divided by the tota
l number of bits
(bit counters detailed in
Table 9).
If the error detector is on (Receiver
->On
light is ON), the BER shown is a
measurement that is b
eing calculated in
real time. If the detector is off, the BER
shown is from the previous session
(captured while the detector was
previously on).
Freq (GHz)