Isso teria sido explicado em uma cena deletada em T2, onde John e seus homens discutem e usam o Time-Deslocamento. Equipamento (TDE). Por razões de plotagem (e orçamentárias), essa cena foi removida, embora a própria máquina do tempo faça uma reapresentação em filmes posteriores
A cena aparece na novela embora;
John struggled to recover, shaking his head. “Not yet. There’s one more thing we have to do.” He turned to Winn. “What’s your reading?” Winn glanced down at a palm-sized power meter dangling off his belt. Looked up at John with a puzzled expression. “Just like you said.” John took a deep breath, feeling the wheels of destiny grinding near. Then, mustering his courage, he abruptly strode out of the room. Winn started to follow. Fuentes frowned in confusion and hurried after, grabbing the tech’s arm. “What reading? What are you talking about?”
Winn indicated the meter. “This is the energy signal put out by the time displacement. I recorded two other identical pulses as we were fighting our way in here.”
“Two?”
Winn impatiently continued walking. Fuentes stayed with him. “What are you talking about?”
“The first must have been the Terminator going through to 1984.”
Fuentes was still confused. “Yeah?” Winn careened into the corridor and quickened his pace to catch up to his commander. Fuentes dogged the tech. “What was the second?”
“Another terminator, probably.” John’s footsteps clacked on the hard floor as he strode along the vaulted tunnel, followed by Fuentes and Winn.
Notavelmente, esta informação não foi compartilhada com Kyle, daí sua declaração um pouco conflitante de que eles explodiram o TDE assim que ele saiu. Na verdade, eles enviaram um T-800 de volta primeiro e depois o destruíram.