ESXi Installable and vCenter Server Setup Guide ESXi 4. Installable vCenter Server 4. This document supports the version of each product listed and. IBM Software is designed to solve the most challenging needs of organizations large and small, across all industries, worldwide. InformationWeek. com News, analysis and research for business technology professionals, plus peertopeer knowledge sharing. Engage with our community. Each sensor can be located up to 1. Note Since the ENVIROMUX unit does not provide power to the smoke detector, it cannot remotely reset the smoke detector power when connected through the ENVIROMUX DI1. DO1. 6. Unlatch the activated smoke detector by simply unplugging and replugging the power supply. Note When using the ENVIROMUX DI1. DOR1. 6 Digital InputNormally Open Relay Contact Output Expander, the power supply for the smoke detectors can be run through a relay contact on the expander. This allows users to remotely power cycle if needed. Note The 1. 2V1. A power supply included with the ENVIROMUX SDS CELCP can provide power to additional ENVIROMUX SDS CELC units through daisy chaining. The ENVIROMUX SDS CELCP has a minimum operating voltage of 9. V. As there will be power loss with this configuration, attention must be given to the gauge and length of the power conductors used to determine the number of units it can support and how far the units can go. Caution If the single power supply fails, none of the smoke detectors in the string will work. Additional power supplies may be required to assure protection of the area should a power supply fail.