What is Phantom and T power?
Microphones such as condenser microphones have live circuitry to be able to measure tiny differences in voltages between their diaphragm and back plate. They need this power either from a battery (Rode NTG2) or from a mixer/recorder (416) Phantom power is usually shortened to just ph48. This is 48 volts of direct current to the microphone equally down the XLR cables pin 2 and 3 without pin 1 (shield) which is then taken as common noise and rejected by the equipment because there is no difference between the pins except for the new audio signals being sent down to the mixer or other equipment.
DC power means the microphone will take as much voltage as it needs to work.
This is an older powering system being slowly phased out and used on older microphones like the 416T. This was also known as parallel powering. The difference to phantom powering is that it would send a 12/48 volts potential difference between XLR pins 2 (hot) and XLR pin 3 (cold) and directly go over the signal.