Sunrise Global Cable Explorer TDR Module, CE4000 user manual Peak Hold

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CE4000 Cable Explorer TDR

User Manual

PEAK HOLD

The Peak Hold (F3) function key will cause the CE4000 display to hold the worst-case peak measurements—both positive (near open) and negative (near short), as shown in Figure 3-10.

The positive peak trace is displayed in blue, the negative peak trace in green and the normal trace (current test result) in purple.

In Figure 3-10, note that the highest loss (worst case) is held on the display (at 470 feet), while the current display (less positive result) is displayed below the worst-case result. Use this display type to troubleshoot intermittent-type problems where the cable may alternately test good and then bad. While in the Peak Hold mode, the user would flex or stress the components under test to see if good or bad results can be displayed. The TDR captures the worst-case results.

Note: The display update speed will slow down, since the TDR is displaying three separate traces alternatively.

Figure 3-10

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Contents CE4000 CE4000 Cable Explorer TDR Disclaimer Contents Maintenance And Service Introduction Introduction Instrument OverviewGeneral Information Mainframe Input/Output CM1000 Mainframe and CE4000 ModuleCM1000 mainframe and CE4000 module CE4000 Keyboard Functions History Unpacking And Initial Inspection Preparation for USECharging Instructions General Information Shipment ContentsSafety Precautions First Time Module Installation CE4000 Cable Explorer TDR Setup Power Up To Self Test ScreenGetting Started Main Menu Screen Detail Setup Overview System Setup Detail Time & Date Cable Select Detail Insert Save changes by pressing the Save F3 key Cable Test SET Cable Length Cable Type CE4000 Cable Explorer TDR Locating Cable Faults TDR BasicsMeasurements VOP Measurements TDR Trace Loss and Return Loss RTL Trace Signatures TDR Tests with the CE4000 Auto Test Mode Display CE4000 Cable Explorer TDR Zoom Peak Hold Save Manual TDR Measurements Display M1/M2 Pulse Gain / POS Measurements CE4000 Cable Explorer TDR Stored Files CE4000 Cable Explorer TDR Next Adjust Compare Load Performance Specifications and KEY Features Display PowerEnvironment InterfacesBattery Replacement Maintenance and ServiceGeneral Maintenance Internal Rechargeable BatteryCleaning Firmware Upgrades CompactFlash Card Replacement TroubleshootingCE4000 Cable Explorer TDR Technical Support WarrantyCustomer’s Responsibility Returning Equipment to SunriseMaintenance and Service CE4000 Cable Explorer TDR Additional Cable data Appendix Cable DataVOP