EXFO Power Blazer 88000 Series, User Manual

Page: 314 / 803

Test Setup - Test Configurator, Timer, and System
302
88000 Series
Signal - Signal Configuration (OTN)
Signal - Signal Configuration (OTN)
Note:
The following signal configuration parameters are available from the
interface block.
From the
Test
menu, tap
Setup
,
Test Configurator
, the interface block,
and on the Signal tab.

OTU4
,
OTU3
,
OTU3e1
,
OTU3e2
,
OTU2
,
OTU2f
,
OTU1f
,
OTU2e
,
OTU1e , or OTU1
Note:
At least one of the two check boxes, FEC or Scrambler , must be selected in
order to prevent potential alarms caused by a lack of bit transition on the
optical signal. For example to disable
FEC , first select the Scrambler check
box then clear the FEC check box.

FEC
check box, when selected (default), enables the FEC in TX/RX
and allows detecting, reporting, and correcting up to 8 symbol
errors (Correctable) per codeword. If there are over 8 symbol
errors detected, they are reported as uncorrectable errors.

Scrambler
check box, when selected (default), provides enough
“0” and “1” transitions on the optical signal for clock recovery.
Note:
When the Scrambler check box is cleared, the receiver circuitry is forced to
operate in a condition which is outside of the specified OTN operating
conditions, potentially causing alarms/errors. This configuration can be
used for special analysis in a lab environment.