Wiring of Distribution Box 316

The Videx 316C distribution box is wired using RJ-45 connections for power (+ & –), bus (L & –), and video (V1 & V2) lines, supporting up to four VX2200 videophone outputs.OverviewThe Videx 316C is a 4-way distribution box designed for the VX2200 6-wire bus video system. It allows installers to connect multiple videophones using CAT5 cables with RJ-45 connectors. The box distributes:Power: +20V DC (+ and – terminals)Bus signals: L and – (2-wire bus)Video signals: V1 and V2 (balanced video) It also includes LED indicators for power and bus presence, and a video line termination switch for end-of-line devices .Wiring StepsPower ConnectionConnect the +20V DC power supply to the + and – terminals on the distribution box.Ensure the power LED illuminates to confirm proper voltage .Bus Wiring (L & –)Connect the L and – bus lines from the master door unit or previous distribution point to the BUS IN terminals.Use the BUS OUT terminals to daisy-chain to additional distribution boxes or videophones.The bus LED will indicate when voltage is present on the 2-wire bus .Video Signal Wiring (V1 & V2)Connect the V1 and V2 lines to the corresponding RJ-45 sockets for each videophone output.If the distribution box is at the end of the line, enable the video termination switch to prevent signal reflection .CAT5 Cable ConnectionsUse CAT5 cables with male RJ-45 connectors to plug into the female RJ-45 sockets on the distribution box.Ensure proper pin alignment according to the VX2200 wiring standard.Distance ConsiderationsMaximum cable length from the distribution box to a videophone is 40 meters for a single line, or 50 meters if combining A+B lines .Safety and VerificationAlways turn off the main power before wiring to prevent electric shock.Securely mount the distribution box at an accessible location.After wiring, use a multimeter to verify voltage and continuity.Check that all LEDs indicate proper operation: power, bus, and video termination .Additional TipsLabel each cable for easy identification.Avoid running CAT5 cables near high-voltage lines to reduce interference.Follow the manufacturer's instructions for daisy-chaining multiple distribution boxes . By following these steps, the Videx 316C distribution box can be safely and effectively wired to support multiple VX2200 videophones with reliable power, bus, and video signal distribution.