Ingress Troubleshooting

© 2005 JDSU. All rights reserved.2 High Pass Filter Effect Reverse Spectrum shot at customer's drop coming from older TV set Reverse Spectrum at the output of the optical receiver before and after the high pass filter was added to customer's older TV

© 2005 JDSU. All rights reserved.3 Return Path Taps - Probe the Seizure Screws for Ingress & CPD If the problem is at the FWD Input and not the FWD Output, then the problem is likely from one of the drops If the problem is at the FWD Output of tap, continue on towards end of line Forward Path Disconnect one drop at a time to determine the point of entry

© 2005 JDSU. All rights reserved.4 4 Port Tap Use seizure screw probes if possible Taps are made up of a Directional Coupler and Splitters

© 2005 JDSU. All rights reserved.5 4 Port Tap Probe the seizure screws for ingress Taps are made up of a Directional Coupler and Splitters Disconnect one drop at a time to determine the point of entry

© 2005 JDSU. All rights reserved.6 PathTrak  Field View option combined with JDSU meters provides a complete “Find & Fix” field troubleshooting solution PathTrak  Field View option on SDA and DSAM platform enables techs to greatly reduce MTTR (Mean Time to Repair), which increases customer satisfaction and loyalty PathTrak  Field View option for DSAM provides a programmable CW carrier to aid in troubleshooting return problems Both SDA and DSAM have low pass filter for troubleshooting bi-directional test points PathTrak™ Field View Option