Vertiv™ | Liebert® STS2/PDU
™
User Manual | Rev. 6 | 10/2017 141
INPUT 1 OF/UF
Input 1 Over Frequency/Under Frequency
Source 1 is over frequency/under frequency
Contact technical support; in the United States, call 800-543-2378. Outside the 48 contiguous United States
contact Vertiv Services, if available in your area. For international areas not covered by Vertiv Services, the
Vertiv-authorized distributor can provide technical support.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event was also written to the Event Log, if so configured.
INPUT 2 OF/UF
Input 2 Over Frequency/Under Frequency
Source 2 is over frequency/under frequency.
Contact technical support; in the United States, call 800-543-2378. Outside the 48 contiguous United States
contact Vertiv Services, if available in your area. For international areas not covered by Vertiv Services, the
Vertiv-authorized distributor can provide technical support.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event was also written to the Event Log, if so configured.
INPUT CONTACT #1
Input Contact Isolator #1
Occurrence of the indicated external event has been detected by Input Contact Isolator #1 of the Open Comms
Digital Input option board.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
The event, with its assigned name, was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
If configured to be a latching alarm, press RESET on the display. If you are accessing the unit from a terminal,
type CA and press RETURN on your keyboard.
INPUT CONTACT #2
Input Contact Isolator #2
Occurrence of the indicated external event has been detected by Input Contact Isolator #2 of the Open Comms
Digital Input option board.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
The event, with its assigned name, was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
If configured to be a latching alarm, press RESET on the display. If you are accessing the unit from a terminal,
type CA and press RETURN on your keyboard.
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