Telephony systems:
Set up PABX units
Set up and check phone sets (analog and digital)
Adjust level-1 settings
Fit additional units as required

Computer networks:
Plan cable routing and perform wiring accordingly
Perform connections in categories 5, 5E, 6 and 7 compliant with standard
Test wiring using reflectometry techniques

Intrusion and fire detection systems:
Wire up and connect central units and terminal equipment (sensors, sirens, controllers)
Check correct operation of all devices (sensors, switches, sirens)
Perform level-1 programming

Access control and videosurveillance systems:
Wire up and connect equipment (barriers, badge readers, cameras, monitors, interphones, etc.)
Check correct operation of system

Electrical fitters also perform a commercial function in conveying a positive image of the company. And they perform their duties in such a way as to ensure uninterrupted service and equipment availability.