FortiGate-5144C Chassis
Fortinet Technologies Inc.
The alarm LED reset button activates the alarm cutoff (ACO) state for major, minor, and user-defined alarms. You
cannot reset critical alarms with the alarm LED reset button.
When the ACO state is activated, active alarm LEDs blink and all of the alarm relays are deactivated. The alarm reset
button activates the ACO state but does not clear the alarm completely.
The telco alarm connector (DB-15 male)
Telco alarm connector pin assignment
Pin
Descrption
1
Min
2
MinorReset-
3
Maj
4
MajorReset-
5
CriticalAlarm - NO
6
Critical Alarm NC
7
Critical Alarm COM
8
Minor Alarm NO
9
Minor Alarm NCT
10
Minor Alarm COM
11
Major Alarm NO
12
Major Alarm NC
13
Major Alarm COM
14
Power NO
15
Power COM
Air Filter
The FortiGate-5144C chassis includes a front replaceable air filter that removes dust from intake air and provides static
pressure to achieve uniform airflow. The filter must be installed for the chassis to operate normally. If the air filter is not
locked into place the air filter presence sensors cause an alarm.
FortiGate-5144C 6.2.3 Chassis Guide
19
