SDC

Access Control Power Supply

The 621B Value series 1-amp access control power supply incorporates two field-selectable 12/24 volt DC power limited outputs, including one switched output and one auxiliary output. Control inputs include one trigger input and one supervised emergency release input with selectable non-latching or latching with reset capability. Other features include a battery charger and AC input, DC output and battery status LED indicator. The SDC 621B Value series power supply is suitable for power and battery backup of electric locking devices and access controls, including applications requiring fire emergency release.


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      My first security trade show was in 2021. At the time, I was awed by the sheer magnitude of the event and the spectacle of products on display. But this was the first major trade show coming out of the pandemic, and the only commentary I heard was how low the attendance was. Two representatives from one booth even spent the last morning playing catch in the aisle with their giveaway stress balls. Read Now

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      ISC West 2023 in Las Vegas, Nevada, has officially begun! Make sure to keep an eye on Security Today’s ISCW Live 2023 page, as well as our associated Twitter accounts—@SecurToday and @CampusSecur—for the latest updates from the show floor at the Venetian Expo. Read Now

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