Supported Configurations

Two supported connection configurations for Redundant Switch are illustrated below. For detailed information on these configurations and other supported configurations, please visit the APC Website at http://www.apcc.com.

Notes:

∙Redundant Switch does not support communications with accessories installed in the UPS, except for SNMP accessories. Install any other accessory you need in Redundant Switch.

∙Both UPS units should be the same sine-wave model.

Better Configuration: Smart-UPS Redundant Switch with two Smart-UPS units connected to one AC line.

This configuration is the minimal acceptable, since both UPS units depend on one facility power source.

Best Configuration: Smart-UPS Redundant Switch with two Smart-UPS units connected to two separate AC lines.

This configuration is better than the previous, since each UPS unit receives power from a separate facility power source.

PowerChute® plus Configuration Procedure

1.Install PowerChute® plus following the instructions in the enclosed Software Installation Instruction Sheet.

2.At the Redundant Switch front panel, set the Source Preference to Source B.

3.Start the computer on which PowerChute® plus is installed.

4.Start PowerChute® plus. Communication is to UPS-B.

5.Configure UPS-B according to your requirements.

6.Set the UPSID to UPS_B.

7.At the Redundant Switch front panel, set the Source Preference to Source A.

8.Restart the computer on which PowerChute® plus is installed.

9.Start up PowerChute® plus. By default, communication is to UPS-A.

10.Configure UPS-A according to your requirements.

11.Set the UPSID to UPS_A.

Notes:

High availability is the condition in which both UPSs are available to supply AC power. Standard availability is when only one UPS is fully available for back up power.

The following events result in a “self test failed: invalid test” message from PowerChute which indicates a change from high availability to standard availability:

⇒Self-test fails

⇒Alternate UPS communication is lost

⇒Alternate UPS voltage is out of range

⇒UPS-A fails, Redundant Switch senses this and transfers the load’s AC power input and PowerChute communication to UPS-B.

When the selected UPS self-tests, Redundant Switch switches to the other UPS, causing a self-test of that UPS, then switches back.

Storage

Store the Redundant Switch covered and upright in a cool, dry location at -15 to +50 °C (+5 to +122 °F).

990-0253A, Revision 2 6/99

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APC SU043 1400 VA, SU041 1400 VA, SU42-2 3000 VA Supported Configurations, PowerChute plus Configuration Procedure, Storage
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SU042-1 3000 VA, SU42-2 3000 VA, SU041 1400 VA, SU043 1400 VA specifications

The APC SU042-1, SU043, SU041, and SU42-2 are reliable uninterruptible power supply (UPS) systems designed to provide consistent power protection for essential electronic equipment. This range of UPS models is ideal for homes, small offices, and critical servers, ensuring peace of mind through a reliable power backup solution.

The APC SU042-1 is a high-capacity 3000 VA model that combines robust performance with smart technologies. It is equipped with a pure sine wave output, ensuring that sensitive electronics, such as servers and networking equipment, receive clean and stable power. With a compact design, this UPS easily fits into various environments while providing extended runtime options through additional battery packs. The LCD display offers real-time information on battery status, load, and input/output voltage, allowing for quick monitoring and management.

In the mid-range category, the APC SU043 and SU041 models stand out with their 1400 VA capacity. These units are perfect for desktop setups and small servers, offering essential features to protect equipment from power disturbances. Both models feature automatic voltage regulation (AVR), which stabilizes incoming voltage and minimizes the risk of damage from power surges. They also come with multiple output sockets, accommodating a variety of devices while ensuring maximum efficiency.

The SU42-2, another 3000 VA model, provides a higher capacity for businesses looking to safeguard critical infrastructure. Similar to the SU042-1, this unit boasts pure sine wave output and advanced LCD displays for monitoring. Additionally, the SU42-2 features customizable settings that allow users to tailor performance based on specific power needs, such as setting alarms and adjusting sensitivity to voltage fluctuations.

All four models utilize advanced battery management systems to enhance battery life and performance. User-friendly, they come with USB and serial connectivity options, allowing seamless integration with network monitoring software, enabling administrators to manage and monitor power status remotely. In conclusion, the APC SU042-1, SU043, SU041, and SU42-2 UPS models represent a versatile range of solutions designed to protect vital equipment against power disturbances, making them an essential investment for anyone reliant on a steady power supply.
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