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
USB Port
The USB port, located on the Acme Packet 4600 front panel, is reserved for software-
enabled applications.
Chapter 2
Network Interface Unit
2-8