Alarm Category

The alarms can be categorized into the following six types according to the Web LCT standards and functions:

• Communication alarms: alarms related to NE communication, ECC communication, and optical signal communication. For example, loss of NE communication and loss of signal.
• Processing alarms: alarms related to software processing and abnormal conditions. For example, equipment bus collision and secondary path check failure.
• Equipment alarms: alarms related to equipment hardware. For example, laser failure and optical port loopback.
• Service alarms: alarms related to the service status and QoS. For example, performance threshold-crossing of the multiplex section, and excessive B2 bit errors.
• Environment alarms: alarms related to the power supply system and equipment room environment (temperature, humidity, access control and so on). For example, the temperature of the power module exceeds a certain threshold.
• Security alarms: alarms related to the security of Web LCT and NEs. For example, an NE user is not logged in.