
PCB-4000 1+1 Phase Combiner Revision 2
Preface MN/PCB4000.IOM
viii
Warnings, Cautions, and Notes
AWARNING
givesinformationaboutapossiblehazardthatMAYCAUSEDEATHor
SERIOUSINJURY.
ACAUTION
givesinformationaboutapossiblehazardthatMAYCAUSEINJURYor
PROPERTYDAMAGE.
ANOTE
givesimportantinformationaboutataskortheequipment.
AREFERENCE
directstheusertoadditionalinformationaboutataskorthe
equipment.
Recommended Standard Designations
Electronic Industries Association (EIA) designations supersede Recommended Standard (RS)
designations. Reference to the old RS designations (e.g., RS‐232) may appear where it might
concernactualtextdisplayedontheunit’srearpanel,SerialInterface,orWebServerInterface
pages.AllotherreferencesinthemanualusetheEIAdesignations.
Metric Conversion
Metricconversioninformationisprovidedontheinsidebackcoverofthismanual.ComtechEF
Data provides this information to assist the user in cross‐referencing non‐Metric to Metric
conversions.
Electrical Safety Notice
Doublepole/neutralfusingisusedontheprimepowersupplyinput.
This equipment is designed to minimize exposure of personnel to hazards. For further
information, contact the Comtech EF Data Customer Support Department. The persons
responsiblefortheoperationandmaintenanceofthePCB‐4000must:
• Knowhowtoworkaround
,with,andonhighvoltageequipment.
• Exerciseeveryprecautiontoensurepersonnelsafety.
• Exerciseextremecarewhenworkingnearhighvoltages.
• Befamiliarwiththewarningspresentedinthismanual.
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