Emergency manual monitor
The emergency manual monitor was a compartment located in the engineering  section of  starships. Overlooking the main engineering deck, entry to this area was gained by use of a gangway. 

Distribution of power generated by the warp drive could be controlled from this center. In 2267, Engineer Scott and Doctor McCoy surreptitiously diverted warp power to the transporter in order to escape the mirror universe. The emergency manual monitor aboard the  was heavily guarded and unauthorized power transfers were monitored by the security chief's panel. () 

In 2268, the android Norman made several adjustments to the instruments in the emergency manual monitor, tying the matter/antimatter pods to a trigger relay that would destroy the  if the course he laid in was altered. ()

Later that year, Ensign Pavel Chekov of Enterprise discovered two dead engineers, who apparently murdered each other, in the emergency manual monitor aboard the . ()

Transporter control was also regulated by the monitor. When the Enterprise was ordered to ferry newly designed equipment to Memory Alpha, the direct transfer was to be conducted from that location. Later, when the Zetarians interfered with the transporter beam, the problem was to be diagnosed at the emergency manual monitor. The equipment would be brought down to Memory Alpha after the Zetarians were destroyed. ()

Spacecraft sections