Digital Alert Systems says there is increased demand for DC-powered emergency alerting infrastructure. So it now offers a DC power supply option for its DASDEC-III system.
The supply is called the DAS3-DC-PS. It supports a –36V to –72V input range, making it suitable for standard –48VDC facilities.
“By eliminating the need for multiple AC-to-DC converters, the new option reduces heat generation, improves operational efficiency and simplifies backup power integration using direct battery banks,” the company said.
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It quoted Vice President of Technology Jon Rue saying this option simplifies integration and enhances safety and reliability in telecom and broadcast environments.
The supply replaces the standard AC power supply and connects via a two-lug terminal strip.
“Operating at 48V DC — below the 50V threshold recognized by safety regulations — the DAS3-DC-PS reduces the risk of electric shock and allows for the use of lower-voltage cabling, simplifying installation and maintenance,” DAS stated in its announcement.
“The new DC option also brings significant facility-level benefits. The negative polarity of –48V DC helps prevent corrosion of copper cables and battery terminals, while its compatibility with telecom standards ensures seamless integration with other equipment.”
It said facilities can use standard 12V lead-acid batteries wired in series to create a 48V backup power source, enabling uninterrupted operation during power failures without the need for inverters or AC-to-DC conversion.
Retail price is $450. The supply can be fitted into new DASDEC-III units at the factory or retrofitted to units sent to the company.
Info: www.digitalalertsystems.com
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