Maintenance 128P0725810 Issue 3.0 COMPANION 200 Installation and Maintenance GuideUnderstanding event messagesEvent messages appear as items in the Administration log or theEvent/Alarm log. Most of these event messages appear duringnormal maintenance. An installer may view the event messages todiagnose a problem in the system.Each event is assigned a severity number. An S preceding thisnumber (for example, S4), may appear in the event message. S1 hasthe lowest priority. If the Log is full, new event messages with ahigher severity number replace existing event messages of a lowerseverity. For this reason, check event messages at regular intervals.You can then deal with all messages before they are replaced.Table 16: Event messagesEvent code MeaningEVT180 The tones download failed during system initialization.EVT181 A download failed.EVT220-081S4The Administration log has been cleared.EVT221-081S4The Event/Alarm log has been cleared by the Administration Terminal.EVT221-481 The Event/alarm log has been cleared.EVT222-081S5The Administration Terminal enters the debugging facility that is passwordprotected.EVT222-481 Meridian COMPANION is accessing the debugging facility.EVT260-0302S8The Controller takes the access line on port 0302 out of service because nocurrent was detected.EVT261-0302 S1 The access line on port 0302 is returned to service after current was detected(see EVT260).EVT264 The CCU line detected the completion of the release handshake after it hadpreviously failed.EVT280 The Administration Terminal has received an event it cannot handle.EVT281 There is a software error on the Administration Terminal.EVT285 An address error occurred.
