Save Time & Money with ProSYS.FreeCom Bus detectors and unique diagnostic tools Save on cabling length Install detectors in series on a 4-core alarm cable, eliminating lengthy cabling back to the panel or zone expander. Each 40 Bus detectors can lead to cable savings of 500m (1,600'). Save on labour Laying less cable means less hours of labour - an estimated 5 hours less for each 100m (330') of cable. Simpler wiring saves time on each detector, estimated at 29 hours for 40 Bus detectors. Save on zone expanders Reach maximum system capacity with only 3 Bus Zone Expanders. New iWISE Bus Detectors include an extra zone input, which allows the convenient addition of a door/window contact or any other detector without wiring back to the panel or adding zone expanders. Save on-site maintenance Remote control & diagnostics allow setting and reading of all Bus detector parameters remotely, saving valuable installation and maintenance time. Unique Bus Test The Bus Test utility checks the communication quality between the panel and each module on the Bus, validating wiring and pinpointing intermittent malfunctions.