Tektronix 071-0855-05 user manual Receive Analysis, Module OK

Operating Basics: Functional Overview

Receive Analysis

The Receive card contains the receiver SDH/SONET signal analysis functionality for the OTS9100 10Gb/s SDH/SONET module.

Figure 2-4 shows the Receive card front panel.

Module OK

The Module OK LED should be green while the instrument is running. On power up, the LED first lights red, then will switch to yellow, and finally to green when the system has finished initializing.

NOTE: If the LED remains red after the system has finished initializing, call Tektronix for service.

LOS

The LOS (Loss of Signal) LED indicator can be off, red, or yellow. This indicator will turn red when the receiver detects a Loss-of-signal condition. Once the receiver regains the signal, the LOS indicator will turn to yellow and remain yellow until a new test is started, the module is powered off, or the receiver detects another Loss-of-signal condition.

A yellow history indicator signifies that LOS has occurred since the most recent test started, but is not currently detected.

The LOS indicator will turn off when a new test is started.

DEFECT

The Defect indicator can be off, red, or yellow. This indicator will turn red when a defect (no signal present, LOS, LOF, OOF (SEF), MS-AIS (AIS-L), MS-RDI (RDI-L), LOP, AIS-P, or RDI-P) is detected. It will flash red if defects are detected intermittently.

A yellow history indicator signifies that a Defect has been detected since the most recent test started, but is not currently detected.

The Defect indicator will turn off when a new test is started.	Figure 2-4: Receive
	Front Panel

OTS9100 User Manual 2-5