Unfortunately, there's no standard alarm output for switches, routers, SONET equipment and other telecom and transport gear. You'll have to check each type of transport equipment in your network to see what kind of alarms it supports.
The best way to find out what kind of alarming your equipment can do is to check the documentation supplied by the manufacturer. The documentation should have at least a short section describing the equipment's alarm outputs.
Ideally, your equipment will support some kind of protocol interface, giving you detailed visibility of its internal operations. But your equipment may only support contact closure outputs, which - depending on how many contact closures it has - may only give you a handful of summary alarms.
However, if your equipment doesn't have a documented protocol output, check it for a printer port, a report-only printer (ROP) port or a craft port. This port is designed to output a detailed log of equipment activity in the form of an ASCII text stream.
Historically, this ASCII output port was originally intended to connect to a printer for producing activity log printouts. A printout is a great way to keep a detailed record of what has happened in the past, but it's not a good way to monitor what's happening right now.
However, T/Mon provides a way to turn that ASCII stream into actionable, real-time alarm data. T/Mon's optional ASCII Processor Software Module can automatically capture ASCII text, extract important information from the text stream, and convert the text to a standard T/Mon alarm notification.
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