2.5 Utility88 PC Programming Manual2.5.12 Utility—Digital Trunk Error ReportDisplays accumulated information on various types of errors occurring on digital trunks.This option is only available at Installer level.The value displayed for each error item is the number of times that each error occurred during thetime period selected. Average values for these items vary depending upon many factors, such as theequipment being used, and the distance from the telephone company.The displayed items are as follows:To view digital trunk information1. From the Utility menu, select Digital Trunk Error Report.2. From the Slot No drop-down list, select the target slot.• To generate a report on a specific card, select the slot number and card name.• To generate a report on all matching cards simultaneously, select "ALL".3. From the Display form drop-down list, select the time period to view.4. Click Execute.The error report will be displayed.Item DescriptionTime Time of errorSlot Relevant slot and card typeCounter of Digital TrunkError Logs logged inMinor Error LogOut of SYNC (#300) Digital trunk out of sync (Loss of Signal)RAI (#301) Digital trunk RAI signal receptionAIS (#302) Digital trunk Alarm Indication SignalreceptionFrame Failure (#300) Digital trunk frame failure (Loss ofFrame)Counter of minorcommunication errorCRC Cyclic Redundancy Check errorSF Severely errored frame (or SevereFraming Error)FE Frame synchronisation bit-errorLV Line Code ViolationSL Controlled slip