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Total Access 3000/3010 4-Pair Line Power Unit Installation and Maintenance Practice
10 61181500L2-5B
Alarms
The faults displayed by the LEDs also produce alarms, which can be reported on the Total
Access 3000/3010 Controller Unit. The Controller Unit supports the following alarms:
• SNMP alarms to be used along with the Total Access EMS
• Local alarm contacts
•TL1 NMA alarms
Table 6 shows the alarm descriptions and possible causes.
Table 6. Alarm Descriptions and Causes
Alarm Description Possible Cause
Under Voltage The output voltage is too low. There is damage to the LPU that caused the
output voltage to be lower than 230 VDC
(between tip and ring).
Ground Fault There is a path to ground. There is a connection between one of the
output wires and ground.
Overload LPU is sourcing too much current. The output current is greater than 0.4 amps.
Under Current LPU is sourcing very low current. The LPU is not connected to any load or a
connected load is drawing less than 0.004
amps.