The net.dante.otrs.OTRSProducer JAVA class take one integer parameter which is the number of minutes to subtract from the current time, in order to determine the date and time range of the tickets required.
In a nutshell, the OTRSPruducerOTRSProducer, queries the OTRS system for all maintenance tickets that were updated in the last 60 minutes. It retrieves those tickets and creates XML messages within the Enterprise Service Bus in the OTRS queue. Once it has completed it's processing, a Consumer, OTRSConsumer, processes the message within the OTRS queue
...