EXFO FTB/IQS-88000 Series Power Blazer for FTB-2/2Pro/500/IQS-600 - Manual (Page 216)

Test Setup - Test Configurator, Timer, and System
204 FTB/IQS-88000 Series
Signal (Transport)

Step Size (ppm) allows to set the increment/decrement value (from
0.1 to the maximum offset) that will be used when changing the
frequency offset with the “+” or “-” button.
RX Frequency
Note: The following RX Frequency information applies to serial interface only,
refer to RX Frequency on page 134 for parallel interface.

Frequency (GHz) indicates the frequency of the input signal.

Offset (ppm) indicates the frequency offset between the standard rate
specification and the rate at the input signal.
Note: For both Frequency and Offset the following background colors are used.

Max. Negative Offset (ppm) indicates the maximum negative
frequency offset between the standard rate specification and the rate
from the received signal.
OTU3 ± 50 ppm (Framed)
± 120 ppm (Unframed) 43018413559 bit/s
OTU3e1 44571000000 bit/s
OTU3e2 44583000000 bit/s
a. The frequency offset range is guaranteed for a source signal at 0 ppm. In the event
that the source signal already has an offset, then the output signal may exhibit an
offset larger than the range specified.
Background color Description
Green The frequency is in range.
Red The frequency is out-of-range or LOC Lane. LOC is also
displayed.
Gray Pending state.
Interface Frequency Offset a Nominal Frequency