For Immediate Release Contact: John Tiberio Phone: 954-905-1098 Email: John.tiberio@unipowerco.com

Subject: UNIPOWER Releases New DPP UNIPOWER Announces New Flexible DPP to Meet Network Demands

 8/20/2013 CORAL SPRINGS, FL- UNIPOWER announces a new and improved DPP (Distribution Panel - Pluggable) series designed to allow our customers the flexibility to configure panels onsite, with no tools required . The DPP Series offers the ability to deliver 150A per feed of distribution capacity in a 19”-1RU space. With 48/24V or 12V available, an A/B or single feed and 150Abus bar per side with a 30A max per position, this DPP series is a high quality panel that provides flexibility and is a perfect solution for last minute network demands. The DPP Series provides up to 16 single-bus breakers or 8-A side & 8-B side beakers for true dual bus dual feed dual distribution. The breakers are easily hand inserted on-site and can be removed and replaced while circuit is Hot. Breaker ratings from 1A to 30A can be accommodated. 48/24V or 12V DPP Panels are available in two models. A 48/24V in a single panel reduces integration inventory and also allows dual voltage capability. A 12V version is also available. All panels are polarity neutral to protect against wiring errors. Red LEDs visible on the front panel indicate A or B side trip alarms and easy-connect No/Nc Form C relay contacts are provided for each bus. The DPP Series panels can be mounted in either 19 or 23-inch racks with the mounting brackets provided and can be easily aligned with other equipment with offsets every quarter inch. John Tiberio, director of project management at UNIPOWER says, “With 33% more breakers and 50% higher bus bar capacity than most competitors’, these panels are designed to meet the unknown requirements that come with Network rollouts. UNIPOWER maintains stock of panels and breakers, to meet your last minute network demands” DPP Series panels are UL approved and RoHS compliant. Product is available for instant delivery from UNIPOWER’s factory Sales office and through several distributors.

For more information, contact John Tiberio, Director of Project Management at Unipower, LLC at John.tiberio@unipowerco.com

 About UNIPOWER

UNIPOWER Telecom is a division of UNIPOWER LLC dedicated to Network Power and Mission Critical solutions, with a full offering of DC Power Systems, Inverters, AC and DC power distribution, DC/DC converters and custom configured rack systems. Visit UNIPOWER at www.unipowerco.com

UNIPOWER at ELECTRONICA

UNIPOWER once again will travel to Munich to participate in the Electronica Exhibition this coming November.

At this show we will be showing our latest power products now in our catalog.

Special focus will placed on our Bluestreak Series of Front-ends available in 12, 24 and 48V outputs.

Plan to visit us there!

Long Run UPS Systems

Widely available UPS systems are designed for short (<1 hour) discharge or backup. Once extended backup times are required these UPS systems become expensive and are very limited in overall capability. Recharge time also becomes a factor with these systems and this becomes important where the grid is unreliable or unstable.

Scalability is also a factor as most UPS systems are not scalable or have very limited scalability and may become an important issue if system requirements demand more power, more backup time or faster recharge times.

UNIPOWER Long Run UPS Systems are designed using "Telecom Grade" rectifiers (chargers) and inverters and can be configured to meet specific back up times and recharge requirements.

Telecom grade batteries are used with these systems to improve reliability and extended system life.

Contact UNIPOWER for your own Long Run UPS configuration.

USING BLUESTREAK FOR I²C APPLICATIONS

The communications hardware in BLUEstreak™ meets the requirements of the SMbus standard.
SMbus is essentially an I²C implementation in which certain parameters have been defined to ensure interoperability between different vendors’ products.
Examples are bus timing and voltage level thresholds, which were not so clearly defined in early I²C implementations such as that used in UNIPOWER’s PowerCassette™ Front-Ends. Bus timeouts were also added so as to eliminate the bus ‘hanging’ when the addressed hardware does not respond within a reasonable time.
The SMbus specification also includes a set of defined command protocols; again, to standardise on the way in which the hardware should respond when sent a specific string.

UNIPOWER’s BLUEstreak implements the PMbus. This is a command structure with defined responses that has been developed by the power supply community along with a number of users as a kind of ‘superset’ that will yield ‘known’ results when implemented fully.
PMbus uses a specific set of SMbus commands that has been defined for use in power supplies, in particular for distributed power applications. It's sort of a superset of commands.
At the lowest level I²C hardware is interrogated by directly addressing a register and reading back its content; but there is no predefined structure to this data, so it then has to be interpreted in software to create a meaningful result.
The SMbus structures they way in which the hardware is interrogated in the form of a series of standardized command types (protocols).
For more information about SMbus we recommend that the reader obtains the “System Management Bus Specification” which is available in PDF format from www.smbus.org/specs/smbus110.pdf. In particular we draw attention to pages 21-26, where the command protocol is detailed, and to pages 37 and 38, which describe the main differences between basic I²C and SMbus.

With PMbus a set of commands specific to power supplies has been defined along with formatting of the returned data string.
With the exception of a small number of manufacturer specific commands PMbus need only be coded for once, regardless of which hardware is involved.
For more information about PMbus we recommend the reader obtains the current published PMbus specification revision 1.1 (as utilised in BLUEstreak) from www.pmbus.org/specs.html. In particular, page 21 section 7.1 shows the command format for common output readings such as voltage and current while page 75 shows the structure of two typical status bytes.

In summary:
I²C = 2 wires, clock data, address + data
SMbus = 2 wires, clock data, address + command code + low data byte + high data byte + timeouts
PMbus = SMbus + PSU commands with defined data structure.

Customers who are familiar with basic I²C as well as the SMbus command protocols can communicate with BLUEstreak provided they are using SMbus compliant hardware and can implement SMbus commands in their management system, for example in an aTCA implementation.
This will allow them to obtain readings of voltage, current, temperature and fan speed (as examples) as well as obtaining inventory information from the on-board EEPROM.
They can also send commands to the power supply to change parameters and control its operation.
It should be noted that a basic I²C management system may be able to communicate with the BLUEstreak. This is the case with UNIPOWER’s own DSC1000 power system controller. UNIPOWER cannot make any guarantees that non-SMbus compliant management systems will work.

Integrating Power Systems

UNIPOWER now integrates small to mid size power systems to customer specifications.



UNIPOWER has added the internal capability and has the accessories, batteries and many other components in stock to integrate customer specific power systems that can be put together using many of UNIPOWER's standard power components.

These power components can be integrated by mounting them on a relay rack and wiring the different sub systems together to achieve a desired customer specification.

UNIPOWER has the unique ability to supply not only 48VDC systems, but also 24 and 12VDC systems; using standard systems components.



Components available for integration are:

• RECTIFIER SHELVES AND RECTIFIERS


• SYSTEM CONTROLLER


• LVD


• DC DISTRIBUTION (BREAKER/FUSE PANELS)


• RELAY RACKS, 19" OR 23", 50" or 7 feet high


• BATTERY TRAYS


• BATTERIES


• BATTERY BREAKERS

...and many other pieces to the system's puzzle.

These systems are shipped pre-wired and tested at the factory for simple and trouble-free installation by our customers. These systems are also individually documented as a single, distinct model number for future orders and for any necessary customer support.

Please contact us for with your NEXT system requirement!!!

NorthStar Batteries now in stock

UNIPOWER now with batteries in stock to serve our customers' total systems needs with instant delivery...

A common theme with our customers is the lack of availability of batteries for their systems requirements. To address this issue, we have worked together with NorthStar Batteries to make available to our customers a significant inventory of the most commonly used batteries.

The models to be maintained in stock are as follows:

NSB 60FT

NSB 100FT

NSB 170FT

UNIPOWER will monitor and maintain inventory of these battery models in our Coral Springs, Florida facility for immediate shipment to our North American and Latin American customers.

Other models may be added later, if necessary for support of our customers.

We thank NorthStar for their assistance in this process.

Virtual Trade Show

On Wednesday, December 9th, UNIPOWER participated in a "virtual trade show" hosted by Globalspec. This show had our booth showing many of our products, it also had literature that was available for downloads by our visitors. Our booth was staffed by seven team members representing sales and engineering from North America and Europe.

At this Show, we featured Inverters, DC/DC Converters, Multi-output power supplies, and front ends and rectifiers. We ran a short video of our Telecom booth, were we highlighted our entire Telecom product line.

The show began at 11:00 AM EST and ended at 7:00 PM EST. During these 8 hours we were visited by over 220 interested parties, including some of our Sales representatives in the US as well as some of our international distributors. We were able to "chat" with each visitor and were able to offer answers and assistance on our products.

Like any show, meeting new potential customers is what is all about and we certainly got to do this.

The job of following up with our many visitors is underway and we look forward to our next "virtual trade show"...perhaps some day all shows will be like this!

Australian Partners visit UNIPOWER Europe

On 12th and 13th October the staff at UNIPOWER's European office welcomed four members of the team from our agent in Australia for a two days of product training.

Delia Jones, Ian Hansen, Malcolm Scott and Bryan Cook took a detailed look at UNIPOWER's comprehensive range of power conversion product as well as delving into the depths of the software features that many of these now offer.

"Our time at Unipower was friendly and relaxing; but above all a very informative time. Being able to meet with the guys on a face to face basis we learned a great deal," said Dewar General Manager Ian.
"The product knowledge we gained could not have been achieved without visiting UNIPOWER and we feel we are now in a great position to ensure our customers in Australia and New Zealand make the right choice when selecting a vendor for their power requirements.
There was one moment of tension however when we were challenged to a table tennis match. We did manage to hold our own against some stiff competition and didn't let go of those particular ashes!"

Supercomm 2009

UNIPOWER will again participate in Supercomm this October in Chicago.

This will be the 9th time that UNIPOWER will be an exhibitor at this important show. The company will again return with an updated and refreshed 10 x 20 booth, that can be found in location 5025.

This year the company will present new products that represent the company's new focus on providing standard integrated power systems and also its ability to configure and integrate many of it's standard power components into "one of a kind" solutions for customers looking for fast and easy to install power solutions.

Highlighted at Supercomm will be UNIPOWER's new Bluestreak Rectifiers, a series of high-density, high-efficiency modules that boast 92% efficiency. These rectifiers will be also found incorporated in the new Gravitas X200 Compact System as well as in its Gravitas X450/X650 Power Cabinets.

Along with these systems the company will show examples of its pre-configured AC backup systems that include battery chargers, inverters, transfer switch, comms module and even various distribution possibilities. These systems ship all in a single box and once easily connected can be up and running in a matter of minutes.

We look forward to seeing our customers and friends at Supercomm, Booth 5025.

Battery Protection in Telecomn Systems

Battery Protection in Telecom -48V Rectifier Systems

In telecom power systems using battery backup, the battery size in Ampere-Hours(AH ) is determined by the maximum system load in amperes and the backup time in hours to maintain the system output voltage within acceptable limits during an AC power failure.
Generally, for battery backup requirements exceeding 1.0 hours, multiple battery strings are required. These strings are connected in parallel across the 48V bus and each string should carry it’s equal share of the total system charge and discharge current. During the discharge time the battery supplies the total system load. Each battery string must be rated to supply a current equal to the maximum total system load divided by the number of battery strings. It is good practice to use circuit breaker protection in each string to provide overload protection, and this is also useful in providing a method for manual disconnect for each individual string for maintenance and service. It is recommended to rate the circuit breaker current at a minimum of 25% above the maximum string current as defined above.

During the charge time, after AC power is restored, the battery will be recharged at a current equal to the total rated rectifier current capacity minus the total system load. It is important here to ensure that there is sufficient rectifier capacity beyond the system load to meet the recharge time requirements. In most systems the recharge time requirements are typically substantially longer than the discharge time requirements at maximum system load, and as a result, the battery current during recharge will be lower than the battery current during discharge. Therefore, circuit breaker protection defined for the discharge protection should be satisfactory for the recharge protection.