APC Symmetra RM 4–12 kVA UPS Installation Manual - APC Media

CHAPTER 2: BASICSRear View Component IdentificationSystem Fan : The system fan provides cooling forframe components.Communications Card : Provides serial interface portfor remote management and communications to extendedrun battery cabinets.Accessory Ports : Two accessory ports are providedfor optional SmartSlot accessories. A Web/SNMPmanagement card for accessing data via a network ispreinstalled.Power Distribution Unit (PDU) : Power distributionpanels provide receptacles for connecting load equipment.Panel type is based on configuration.System Enable Switch : When in the “ON” position,the UPS powers up internally, but does not power the load.When in the “OFF” position, the system powers downinternally.Figure 3: UPS- Rear View(SYPD3 installed)Remote Emergency Power Off (REPO) Connection :Provides connection to an emergency power off switch,that shuts OFFpower to the UPS and prevents the unitfrom operating on-battery.Input Voltage Selection Switch : Set this switch tocorrespond to your input power.External Battery Cabinet Connector : Attach anexternal battery cabinet to the UPS using this connector.Wiring Access Panel : Provides access to wiringterminal blocks for hardwiring the input and (optional)output.Figure 4: UPS- Rear View(SYPD4 installed)10