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Dimensions (with datasheet) for DC locking barrel power connector found on a number of Digi Portserver, Connect, ConnectPort, and XBee adapter power supplies.
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Part number for the barrel type power connector
Digi uses a 2.1mm ID / 5.5mm OD female barrel power connector plug with center positive to connect power to all interface boards and PKG products.
These plugs are very common and readily available from electronics distributors, such as
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