Product Review (April 2005)
Tripp Lite SU1000RTXL2U 1000VA Rack/Tower UPS

By Kevin Nakano

Tripp Lite has been in the business of making DC-to-AC power inverters for decades. The need for such products boomed when PCs became popular and the demand continues to grow as more consumer electronics benefit from clean, uninterrupted power. More recently A/V systems have begun to see the benefits of UPS designs, particularly with the new digital projectors that require cooling when they are initially powered down. Failure to properly cool down these projectors can result in shortened life and/or damage to the hardware. Normally this is not a problem, but in the event of a power failure the need for a UPS becomes apparent. Tripp Lite has many solutions, but we were drawn to the Smart Online UPS for its design topology.

Tripp Lite's Smart Online SU1000RTXL2U is a 2 rack space (2U) unit that features double conversion (AC-to-DC and DC-to-AC) for the ultimate in power backup and conditioning. The unit comes with tower stands for the chassis so that the unit can be installed in an upright position if desired. The unit also includes side support and rack ears for rack mounting the unit. Although the unit was designed to protect critical servers, as well as networking and telecommunications equipment from blackouts, voltage fluctuations and transient surges, the design also works well with A/V equipment. Addressing the concern of emergency projector power, the SU1000RTXL2U provides plenty of clean synthesized AC to your costly investment. We powered our Optoma H77 high definition DLP projector during our tests.

The large capacity 1kVA/800 watt UPS design continuously converts the incoming utility AC to DC, and then uses the DC to AC inverter to produce virtually perfect sine wave AC power (120VAC, ± 2%) to the connected equipment. The result is a significant reduction in harmonic distortion, high frequency electrical impulses, frequency fluctuations and other difficult-to-solve power related problems. Many UPS designs simply switch to the inverter when a problem is detected, but can do little for small voltage and frequency variations. By continuously converting power in the unit, the user is always getting the same clean power regardless of the incoming utility voltage.

Front Panel
The front panel of the SU1000RTXL2U has separate On/Test and Off buttons and a series of indicators for Line, Bypass, Fault, On Line, On Batt, Batt Low, and Replace Batt. There is a four step bar graph that is used for the load level or battery level. There is also an Overload indicator if the load on the unit exceeds its power rating. The yellow Bypass indicator illuminates if the internal DC/AC inverter is not working properly or if an overload condition occurs. In this mode, the unit is only filtering the incoming AC power and bypassing the internal synthesized AC inverter and can therefore not provide backup power if there is a power failure. The Fault indicator illuminates when an internal fault condition occurs (overheating, overvoltages, etc.) and does not normally illuminate even when incoming power is faulty.

The green Line indicator will illuminate constantly when normal utility power is connected to the unit and the Load Active Meter LED will illuminate with the level meter representing the load connected. The Line indicator will begin to flash if the UPS is receiving a voltage that is too high or too low. In either case the UPS will continue to provide clean AC power to the connected equipment. Both the Line and On Line indicator will turn off when the utility power fails. Once this occurs, the On Batt will illuminate indicating only battery power reserve is available. The Batt Active Meter LED will illuminate with the level meter representing the battery level. The Batt Low LED indicates when the battery capacity has reached a critical level. The Replace Batt light will illuminate and the unit will emit three beeps if the battery fails the self test when the unit powers up.

Rear Panel
The rear panel of the SU1000RTXL2U has a total of six NEMA 5-15R outlets grouped into three pairs that can be individually controlled. The long non-detachable power cord is located just below the 15 amp circuit breaker. The TVSS panel is designed for optional modem/network surge protection modules, available from Tripp Lite. The External Battery Pack Connector has a protective cover and can be used to provide extended runtime. The internal electronics are cooled by air drawn from the top of the unit and exits the rear. The fan runs continuously while the unit is connected to AC power regardless of whether the power is on. The Accessory Slot located on the side is designed for optional accessories to remotely monitor and control the UPS from a network. The optional cards slide into the slot and mate to an internal board connector.

Internal SNMP/Web Card
We installed Tripp Lite's SNMP/Web (SNMPWEBCARD) Card which gave the unit LAN access from our exiting network. The optional SNMPWEBCARD allows network users to operate the SmartOnline UPS (using the expansion slot) as a managed device. Remote monitoring and control of the Smart Online UPS as well as the incoming utility power can be monitored using the SNMP network management platform or a web browser. The interface provides remote viewing of site electrical data, UPS status information and self-test logs. Tripp Lite also has an optional ENVIROSENSE module that provides remote temperature and humidity monitoring as well as a dry contact interface to control and monitor alarm, security and telecom devices. Installing the card requires the user to first connect a terminal or terminal emulator to configure the IP address, Net Mask, Gateway, Username and Password through the menu driven interface. Once complete, the board switches need to be changed again and the UPS will then be recognized on the network with the defined IP address.

Using a web browser we accessed the vitals of the SU1000RTXL2U through our local network via the ethernet connection. The interface worked very well and gave us access to all the UPS data one could ask for. The advantage of the web-based interface is that anyone on the network can access any UPS fitted with the SNMP/Web card. Each unit needs to be configured with a unique IP address and can even be username/password protected if desired to prevent unauthorized personnel from changing the settings. The authorized user can also make changes to the network setting through the web browser. If a dedicated PC is connected to the UPS, Tripp Lite has their PowerAlert software that comes with the unit. We installed PowerAlert Version 11 for our tests and used the serial cable.

PowerAlert Software
The PowerAlert software gave us the same type of information provided through the web browser, but with more control since the application runs directly on the connected PC. General data on the unit such as UPS Mode, Input Voltage, Output Voltage, Output Load, Output Frequency, Battery Voltage and Time on Battery. The large meters displayed on the screen can be configured horizontal, vertical or as analog meters. Other information such as Events, Variables, Alarms, Attached Devices and Contacts are also available. Icons located on the bottom of the window give the user visual indicators as to what mode the unit is running in. For example, the light bulb indicates the UPS is getting utility power and the green battery icon lets the user know the battery is more than half charged. A half full yellow battery indicates the battery is less than half full. The alarm clock icon indicates an alarm condition has occurred since the last time the user viewed the alarm screen. These indicators help to quickly assess the status of the unit.

Tripp Lite's Smart Online UPS (Model SU1000RTXL2U) is a very nice design that not only protects your electronics, but executes power protection in a way that provides constant high quality AC power to your equipment with no interruptions. Many UPS designs rely on switching between the utility power and the built-in power inverter when a problem is detected. This results in a momentary drop in voltage until the electronics switch to the internal inverter. The Tripp Lite Smart Online design provides full-time double conversion protection from blackouts, voltage fluctuations and transient surges with zero transfer time. If an internal fault does occur within the unit, the UPS will bypass the double conversion circuit and feed the connected equipment filtered and protected utility power as a way to keep the electronics online.

The large capacity 1000VA/800 Watt design provides continuous 120 VAC ± 2% for up to 18 minutes under half load and 6 minutes under full load. Optional battery packs connected to the rear panel can extend this time if needed. The six outlets are arranged in two individually controlled load banks that can be independently switched using the software interface. This allows the user to selectively reboot equipment connected to the unit or shed less critical loads to extend battery life on other connected components. The built-in serial interface allows the unit to be controlled either by a local computer or remotely using the optional SNMP/web card. The two-way (rack or tower) mounting configuration with hardware included makes it easy to integrate into any system. If you want clean power 100% of the time with zero transfer time in the event of a power failure, Tripp Lite's Smart Online UPS is the answer.

- Kevin Nakano

OPPO BDP-103 Blu-ray Player

Review System

Projector: Optoma H77 High-Definition HD2+ DLP™ Projector
Stewart Filmscreen 100" FireHawk Screen on a Luxus Deluxe ScreenWall
Video Processor/Scaler: Anchor Bay Technologies DVDO iScan HD A/V Processor
Preamplifier/Processor: Parasound AVC-2500U THX-Ultra DTS/DD Preamp/Processor
Amplification: Parasound HCA-2205AT THX-Ultra Five Channel Amplifier
Bass Management: Miller & Kreisel BMC Mini 5.1 Bass Management Controller
Front Speakers: Miller & Kreisel S-150THX (L+R) and S-150AC (Center) Speakers
Rear Speakers: Miller & Kreisel SS-250 Tripole® Surround Speakers
Subwoofer: Two Miller & Kreisel MX-350THX MkII THX-Ultra Push-pull Subwoofers
Room Treatments: Echo Buster panels and Bass Buster towers
Set-top Box: Samsung SIR-T165 Terrestrial HDTV Receiver with DVI
DVD/CD/SACD Player: Sony DVP-NS900V DVD/CD/SACD Player
DVD Audio/Video Player: Kenwood Sovereign DV-5900M 400-Disc DVD Changer
D-VHS VCR #1: JVC HM-DH30000U D-VHS High-Definition D-Theater VCR
D-VHS VCR #2: Marantz MV8300 D-VHS High-Definition D-Theater VCR
A/V Cables: Ultralink Platinum and Advanced Performance Series Cables
DVI Cable: AudioQuest DV-1 20m DVI-D Cable
DVI Extender: Gefen HDTV Extender
HDMI Cables: Accel Corporation HDMI Adapter and Cables
Power Conditioning: Panamax MAX® 5510 ACRegenerator
Video Generator: Sencore VP403 SDTV/HDTV Video Pattern Generator
Color Analyzer #1: Sencore CP5000 ISF Certified All-Display Color Analyzer
Color Analyzer #2: Milori ColorFacts Professional with GretagMacbeth Eye-One Pro

Review at a glance

Tripp Lite - SU1000RTXL2U 1000VA/800 Watt
2U Rack/Tower UPS


  • True online, double conversion UPS provides pure, sine wave AC output at all times
  • Zero transfer time means voltage maintains continuous operation
  • Removes harmonic distortion, electrical impulses and frequency variations.
  • Accepts input voltages between 80 and 138 (65 to 138 at loads under 70%)
  • Regulates output to 120V ±2% with 1000VA/800 Watt power capacity
  • Six NEMA 5-15R outlets
  • Standard internal battery set provides 18 minutes runtime at half load
  • Innovative design makes unit adaptable for rackmount or tower applications
  • Uses only 2 rack spaces (2U) in standard 19 inch rack
  • Fault tolerant design maintians continuous utility output to connected equipment
  • DB9 serial port for network interface; SNMP compatible
  • Slot for optional SNMP/web card (Part# SNMPWEBCARD)
  • PowerAlert unattended shutdown software and 6 ft. network cable included
  • Compatible with Tripp Lite's Watchdog system service software
  • Diagnostic LEDs on Front Panel
  • Battery replacement door
  • 2 year manufacturers product warranty
  • $250,000 Ultimate Lifetime connected equipment insurance

    Package Contents

  • SU1000RTXL2U Online Double-Conversion UPS System
  • PowerAlert Software and cabling
  • Mounting hardware for 4 post rack enclosures, tower stands
  • Instruction manual with warranty information
  • Company Information
    Tripp Lite World Headquarters
    1111 W. 35th Street
    Chicago, IL 60609 USA

    Phone: 773-869-1111
    Fax: 773-869-1329
    Ordering: 773-869-1797
    Customer Support: 773-869-1234


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