CCTV, intercom, audio visual, and emergency backup systems; fire/intrusion and smoke/fire detection systems/alarms, security systems, data cabling installation/termination and certification, scoreboards and school bells, public address systems, all appropriate diagnostics, video surveillance, fire alarms, etc.) for the purpose of ensuring safety, diagnosing problems and failures, identifying equipment and systems repair needs, computer purchasing; preventative maintenance and completing fire inspection to comply with findings within fire code requirements. audio visual systems, fire/intrusion systems and smoke and fire detection systems and alarms, security systems, computerized locks, door monitoring and access systems, data cabling installation/termination and certification, cable TV, scoreboards and school bells, public address systems, etc.) for the purpose of ensuring district needs are met in compliance with specifications, codes, laws, and regulations and maintaining systems in safe working condition.