Alarm Port
The alarm port on the NIU is a flexible interface that closes a circuit when a specific
alarm level becomes active on the Acme Packet 4600. The Acme Packet 4600 features an
alarm control signal interface that can be used in a CO location to indicate when
internal alarms are generated. The Acme Packet 4600 uses alarm levels that correspond to
three levels of service-disrupting incidents. When any of the three alarm levels is
generated, the corresponding circuit for that level on the alarm port is closed. The
alarm port uses a standard RJ45 connector.
Alarm Levels
There are three alarm types that each indicate various severity levels.
| Alarm Type | Description |
|---|---|
| Minor | Functionality has been impaired to a small degree (e.g., a single fan has failed) |
| Major | Pending failures or unexpected events (e.g., a loss of signal) |
| Critical | Catastrophic condition has occurred (e.g., the system is overheating) |
Alarm Port Pin-out
The alarm port has pins for ground as well as each alarm level (minor, major and critical).
| Pin Number | Signal Name/Description |
|---|---|
| 1 | Minor Alarm (Pin 1) |
| 2 | Minor Alarm (Pin 2) |
| 3 | Major Alarm (Pin 1) |
| 4 | Major Alarm (Pin 2) |
| 5 | Critical Alarm (Pin 1) |
| 6 | Critical Alarm (Pin 2) |
| 7 | Ground |
| 8 | Ground |