On Zyxel 16.8 rackmount modem enclosures, the barrel power plug that went into each modem blade was hot on the outside barrel rather than on the inside like eve

On Zyxel 16.8 rackmount modem enclosures, the barrel power plug that went into each modem blade was hot on the outside barrel rather than on the inside like every other sensible power connector using barrel plugs. So you would destroy a blade every couple weeks when an unused or unplugged power connector barrel would touch the modem blade and destroy the modem through its circuitry’s apparently-unprotected ground. We‘ve been having connector issues for as long as we’ve had connectors.