Liebert PSP user manual Remote Shutdown Via the DB-9 Connector, USB Interface Port

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Remote Shutdown Via the DB-9 Connector

The PowerSure PSP can be shut down remotely by shorting Pins 5 and 6 or via Pins 4 and 5 of the DB-9 connector.

Shutdown Via Pins 5 & 6

When Pin 6 is shorted to Pin 5, the UPS output is shut off regardless of what mode the UPS is operating in. The UPS cannot be started as long as the pins are shorted. When the short is removed, the UPS out- put can be enabled by pressing the ON/OFF/Alarm Silence button.

Shutdown Via Pins 4 & 5

While the UPS is operating on battery (with no battery test in progress), a 5-12VDC signal for 2 seconds or longer is required to sig- nal a shutdown. Signals for less than 2 seconds are ignored.

After Pin 4 receives the shutdown signal, a 2-minute shutdown timer inside the UPS begins a countdown. The timer cannot be stopped. If utility power returns during the 2-minute timer countdown, the shut- down timer continues until the end of 2 minutes and then the UPS turns off. The UPS must remain off for at least 10 seconds.

By default, autorestart is enabled so the UPS will restart after

10 seconds. If autorestart is disabled via MultiLink software, the UPS remains off until a manual restart.

USB Interface Port

The PowerSure PSP has a USB interface port for communication that will work with built-in Microsoft Power Manager software on the user’s PC, if so equipped. It will provide UPS status and manages the automatic, orderly shutdown of the computer. The UPS (USB) commu- nications meets HID standard, version 1.11. All USB models are com- patible with Microsoft Windows 2000, Windows XP and Mac OS 10.2 or later. All USB models ship with a 6-ft. (1.8m) USB cable.

Microsoft, Windows, and the Windows logo are trademarks, or registered trademarks of Microsoft Corporation in the United States and/or other countries.

Data Line Protection Connectors

Data line (1 input & 1 output) connectors are located on the rear of the UPS and provide transient voltage surge suppression (TVSS) for Phone/Fax/DSL/Internet/Modem devices.

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Contents Power Availability Powersure PSPPage Table of Contents Maintenance TroubleshootingSpecifications Safety Precautions Important Safety InstructionsPage Battery Handling Precautions Introduction & System Description Front View of UPS DIP Rear View of UPSBattery Charger Transfer SwitchBattery InverterWHAT’S Included Installation Option 1-Serial Communications Controls and Indicators ON/OFF/Alarm Silence ButtonUtility Indicator Green Status Indicators Fault, Utility, BatteryTransfer Voltage Selectors DIP Switches Site Wiring Fault Indicator RedModes of Operation Normal ModeBattery Mode Communications DB-9 ConnectorRemote Shutdown Via the DB-9 Connector Data Line Protection ConnectorsUSB Interface Port Battery Replacement Cleaning the UPSMaintenance Maintaining BatteriesBattery Replacement Procedure Troubleshooting Guide to Status IndicatorsProblem Cause Solution Troubleshooting ChartInput AC Parameters SpecificationsProduct Warranty Registration Battery Run TimesPage PowerSure PSP Mounting Template Page Page Company Behind the Products

PSP specifications

The Liebert PSP (Power Supply Panel) is a critical component designed to provide reliable power protection and support for various sensitive equipment, especially in environments like data centers and telecommunications. This device is engineered to ensure continuous operations and safeguard against electrical disturbances, making it an essential part of an uninterruptible power supply (UPS) system.

One of the main features of the Liebert PSP is its advanced power conditioning capability. The unit is equipped with technology that filters out electrical noise and voltage spikes. This results in a stable output voltage that protects connected devices from damage due to power anomalies. The device utilizes double-conversion online technology, which continuously converts incoming AC power into DC and then back to AC. This process provides a clean and consistent power supply, ideal for sensitive electronic equipment.

Additionally, the Liebert PSP features built-in battery backup, ensuring that even during power outages, connected devices remain operational. The intelligent battery management system optimizes battery performance and lifespan by managing charge cycles efficiently. The unit can accommodate various battery types, providing flexibility based on user requirements.

The design of the Liebert PSP emphasizes robust thermal management to maintain optimal operating conditions. It offers features like advanced airflow systems and temperature monitoring to prevent overheating, which can lead to equipment failure. Furthermore, it often includes user-friendly interfaces, such as LCD displays or LED indicators, for real-time monitoring of power conditions and status.

In terms of connectivity, the Liebert PSP usually comes with multiple input and output options, allowing seamless integration into existing power infrastructure. It often supports communication protocols that enable remote monitoring and management, enhancing the visibility and control over power resources.

In summary, the Liebert PSP stands out due to its combination of advanced power conditioning, reliable battery backup, effective thermal management, and user-friendly interfaces. Its design caters to the needs of critical applications, ensuring that vital systems remain operational even in the face of power disruptions. With its robust technology and thoughtful engineering, the Liebert PSP is a trusted solution for maintaining power reliability and protecting sensitive equipment in various settings.
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