EXFO FTB-8500 Series for FTB-500 - Manual (Page 356)

EtherSAM Tabs
342 FTB-8500 Series and FTB-8120NGE/8130NGE
Overview (Results)

Alarms

Link Down: Indicates that the Ethernet connection is down due to
a local or a remote fault condition.

LOS (Loss Of Signal): A LOS indicates that there is no optical input
signal.

Frequency Alarm: The frequency alarm indicates that the received
signal rate meets the standard rate specifications (green) or not
(red). For electrical port, refer to Electrical RX on page 134. For
optical ports, refer to Optical RX on page 138. The frequency alarm
will not be considered in the global verdict.

LOPPS-L and LOPPS-R (Loss Of Pulse Per Second - Local/Remote)
is declared when either no pulse is received or when no pulse is
received within 1 second ± 6.6 μs after the previous pulse.
LOPPS-R is only monitored once the DTS connection is
established.
Service Configuration Test Overview
Displays an overview of the Service Configuration Test results. The
following fields are presented in the same order as they appear in the
table:

Services No indicates the service number.

Dir.: Direction is displayed for dual test set test case providing
bidirectional data.
L -> R indicates results from local to remote direction.
R -> L indicates results from remote to local direction.

Frame Loss (%) indicates the percentage of frames that are lost. Note
that the reported value is the maximum percentage of Frame Loss
from all the burst sequences and ramp steps excluding the CIR+EIR,
EBS, and Traffic Policing steps.

Max Jitter (ms) indicates the maximum measured delay variation.