Product Manufacturing/DistributionStandards, Regulations & Legislation5 Minute Tech Quiz Power Is Knowledge By Roy Pollack What’s Wrong With This? Review the photo at right. The following information is available to you as an inspector: This junction is used for a fire alarm interconnecting buildings. Inside the box is some type of isolator device. There are splices inside the junction box. You might also think about the results of this type of installation. July 7, 2016 ProProfs - Power Is Knowledge » ProProfs Quiz Tool KEYWORDS: power supplies security systems Share This Story Roy Pollack, CPP, SET, holds Level IV certification in the field of fire alarms from NICET is currently the director of Compliance for Devcon Security Services Corp., Hollywood, Fla., and may be reached at firstname.lastname@example.org.