Walkie-talkie UPS power supply

- Mar 29, 2017 -

Its main function is to keep the building intercom system does not power off. Under normal circumstances, in a charged state. When the power when the UPS power supply is powering the system state. Now building intercom systems, manufacturers generally do not use UPS battery, the main system power consumption is deemed too large, generally of small capacity UPS batteries can not guarantee time!

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