B90-478R
this was the highly-secret HoloNet node provided to Admiral Termo by Grand Moff Tarkin, as part of a back-up plan to discredit the Alliance in the wake of the Battle of Yavin. Although Termo was unaware of it until establishing communication, the B90-478R node connected him directly to Emperor Palpatine. It was Palpatine who explained that the Death Star had been carrying a huge cargo of bacta, which was to be used on Delrakkin to help its people recover from an attack that would have been blamed on the Alliance.