Features, Options, and Accessories8-3EATON Powerware® 9390 UPS (100–160 kVA) Installation and Operation Manual S 164201604 Rev B powerware.com8.2.3 Integrated Accessory Cabinet (IAC-B, IAC-T, and IAC-D)The following IACs are designed for use with the Powerware 9390 three-phaseUninterruptible Power Systems: The IAC-B provides maintenance bypass functions. The IAC-T provides parallel tie cabinet or parallel tie cabinet with maintenance bypassfunctions. The IAC-D provides power distribution options for servers, racks, and other equipmentvia distribution panelboards, or distributes power to larger loads via distribution circuitbreakers.The IACs are housed in a single, free-standing cabinets designed for line-up-and-matchinstallation, but may be installed separate from the UPS cabinet.8.2.4 Powerware Hot Sync Parallel SystemA parallel UPS system with two to four uninterruptible power modules can be installed toprovide a parallel capacity and/or redundant system. This load sharing system providesmore capacity than a single UPS, and can provide backup, depending on the load andconfiguration. In addition, when one UPM is taken out of service for maintenance or is notoperating properly, a redundant UPM continues to supply uninterrupted power to thecritical load. A Powerware Hot Sync Computer Area Network Bridge X-Slot card providesconnectivity for system metering and operational mode control. The parallel systemconsists of two to four UPMs each with a parallel CAN card, and a module tie cabinet orload distribution panel to act as a tie point. Each UPM requires a separate battery cabinet.8.2.5 Sync ControlAn optional Sync Control maintains the critical load outputs of two separate single modulePowerware 9390 UPS systems in synchronization. This facilitates the uninterrupted transferof the load from one load bus to another by means of transfer switches. The Sync Controlis housed in a wall-mounted panel that can be located between the UPS units for easywiring.8.2.6 Optional X-Slot CardsThe optional X-Slot cards support several protocols, such as SNMP, HTTP, AS/400® , andModbus ® . See Chapter 13, “Communication,” for additional information.8.2.7 Mini-CSBThe installation of the mini-CSB provides two additional X-Slot bays, increased logging to512 events, five additional programmable languages, a real-time clock, four additionalbuilding alarms, and enhanced alarm contact programming.
