104 PARAGON II USER G UIDES YMPTOM : P ROBABLE CAUSE :Video is “fuzzy” or outof focus.Video Gain Adjustment is required (especially needed with LCD flatpanel monitors).Activate OSUI (by hitting Scroll Lock key twice rapidly.Use numeric keypad + and - keys to adjust video image until infocus.Multi-Tier InstallationIn a multi-tier configuration, the order of powering ON is critical to proper function.• When powering ON existing stable configurations (i.e., if you are NOT replacing or addingswitches and NOT swapping the order of switches) or when you are Power Cycling acascaded configuration, Raritan recommends that you 1) Power ON the third tier switches (ifa third tier exists), then 2) Power ON the second tier switches, and 3) Power ON the ParagonII base unit. User Stations can be powered ON and OFF at any time as needed.• Please note that this order is the reverse of upgrading a cascaded configuration: whenupgrading, first 1) Power ON the base tier, then 2) Power ON the second tier, and 3) PowerON the third tier (if a third tier exists).• For configurations where switches are added, replaced, or swapped (in order), we recommendPowering ON starting from the third tier, moving to the second, tier, and then the base tier,and in addition, performing a partial reset of the database.• Last tier switches must be powered ON before the intermediate level of tier• Intermediate tier switches must be powered ON before the base Paragon II unit can bepowered ON.• User Stations (UST1s) can be powered ON and OFF at any time as needed.• There is a five-second ON/OFF down time in the UST1 or Paragon II power cycle.