Exfo FTB-800 Series for FTB-1 Manual de usuario descargar pdf (Pagina 289)

100

101

Test Results

NetBlazer 279

Alarms/Errors

Section/Line / RS/MS

Alarms

 LOF-S (Loss Of Frame - Section) - SONET

RS-LOF (Regeneration Section - Loss Of Frame) - SDH

RX: A SEF (SONET)/RS-OOF (SDH) defect on the incoming optical

signal persists for at least 3 milliseconds.

TX: Generates non-valid framing bytes (A1 and A2).

 SEF (Severely Errored Framing) - SONET.

RS-OOF (Regeneration Section - Out-Of-Frame) - SDH.

RX: A minimum of four consecutive errored framing patterns are

received.

TX: Generates four consecutive errored framing patterns.

 TIM-S (Trace Identifier Mismatch - Section) - SONET

RS-TIM (Regeneration Section - Trace Identifier Mismatch) - SDH

RX: The received J0 Trace doesn’t match the expected message value.

Only available when Enable TIM-S/RS-TIM check box is selected (Refer

to Traces (SONET/SDH) on page 239).

 AIS-L (Alarm Indication Signal - Line) - SONET

MS-AIS (Multiplex Section - Alarm Indication Signal) - SDH

RX: Bits 6, 7 and 8 of the K2 byte contain the “111” pattern in five

consecutive frames.

TX: Generates a SONET/SDH signal that contains a valid Section

Overhead (SOH) / Regenerator Section Overthead (RSOH) and an

all-ones pattern on the SPE.

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Exfo FTB-800 Series for FTB-1 Manual de usuario Pagina 289

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