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Full Version: T48 Power Adapter Size Specs 5V 2A

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The specs for the T48 power adapter are 5 Volts 2 Amps, but I don't see the polarity and power barrel size mm inner and outer holes documented.

Hi,

As far as I know Yealink phones use 5.5 * 2.1 mm standard.
+ pole in centre.

Reference URL's

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