Central operating and display unit on doors with escape door control units and TS bus network. Can be used as the main or parallel control panel in combination with TSB Controller 970-TSBC. Processor-controlled central module with a buzzer as an audible collective fault alarm, buttons to reset the alarm, two potential-free relay contacts to forward locking status signals, LED operating mode display, three LEDs to indicate status, a button to test LED indicators, and a key switch to authorize or block operator buttons to control doors. With operating and display devices for four doors featuring three LEDs (red, green, yellow) to indicate door status, two buttons to lock/unlock doors or reset the device, one control panel, and one operating manual.