1-12
IM 704420-01E
1.5
Display
Meter Display «See 5.1 for the operating procedure»
The TA120E indicates the jitter ratio, phase difference, etc. on the analog meter.
Jitter ratio indication
The jitter ratio of the selected measurement function is indicated on the analog meter.
You can select the 10% scale or the 20% scale. The indication range is 0% to 11%
for the 10% scale and 0% to 22% for the 20% scale.
Phase difference indication <<See 4.8 for the operating procedure>>
The phase difference between the data signal and the clock signal applied to the
clock input connector during D-to-C jitter measurement is indicated on the analog
meter. The indication range is from 0 deg to 360 deg.
Numeric Display «See 5.2 for the operating procedure»
The TA120E displays numeric values and characters such as the jitter, jitter ratio,
specified value, error code, and firmware version on the 7-segment LED display.
Numeric display of jitter/jitter ratio and average value
The jitter or jitter ratio of the selected measurement function or the average value that
is derived in the process of determining the jitter and jitter ratio is displayed using a
numeric value. You can switch the display between jitter, jitter ratio, and average
value.
Turning OFF the jitter, jitter ratio and average value numeric display
If it is undesirable to view the changes in the numeric display of the jitter, jitter ratio or
average value, the characters “d-oFF” can be displayed instead of these values.
Specified value display
When specifying values for setting up the TA120E such as manual setting of
×
N
speed, manual setting of gate time, arming delay setting, slice level setting when the
trigger mode is set to manual mode or auto + manual mode, phase adjustment
setting, and address setting for GP-IB communications, the corresponding specified
value is displayed.
Error code display
An error code is displayed when an error occurs during operation or measurement.
For details on the error codes and information, see section 9.2.
Version display
The firmware version (ROM version) of the TA120E can be displayed. (section 7.5)
The firmware version is also displayed when entering the maintenance mode (section
9.4) of the TA120E.
