Getting Started®6Section 1 DriveRack ™This LED (when lit), indicates that the 481 is connected to the control bus.When it is flashing, the 481 is sending/receiving network information.Remote LEDThis LED (when lit), indicates that the 481 is connected to the 480R. Whenit is flashing, the 481 is sending/receiving information from the 480R.PC LEDThis LED (when lit), indicates that the 481 is connected to the PC. Whenit is flashing, the 481 is sending/receiving information from the PC.Input MetersThe 481 DriveRack™ provides the user with four independent 6-segmentlightpipe™ input meters that range from -30 to +22 dBu. Note: Thesemeters are calibrated for the +22dBu setting of the gain jumpers.Output MetersThe 481 DriveRack™ provides the user with eight independent 6-segmentlightpipe™ output meters that range from -30 to +22 dBu. Note: Thesemeters are calibrated for the +22dBu setting of the gain jumpers.Power SwitchTurns the 481 DriveRack™ on and off. Note: dbx Professional Products rec-ommends that power amps connected to the DriveRack™ should be pow-ered down prior to cycling the DriveRack™.IEC Power Cord ReceptacleThe 482 comes with an International power supply that will accept voltages ranging from 100V-240Vat frequencies from 50Hz-60Hz. An IEC cord is included.MIDI In, Out and Thru ConnectorsThese connectors provide MIDI functionality to the 482 DriveRack™. The In, Out and Thru jacksallow you to use the 482 DriveRack™ at any point in the MIDI chain.RS485 Control Bus Input (DB-9 connector type)This input network connection is used to receive information being sent from other units in theDriveRack™ network link.1.5 Rear Panel Connections (482)