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Getting Started
®
DriveRack™ User Manual
4
Section 1
DriveRack
™
user with different modes of functionality including: coarse/fine encoding (successive presses
will toggle the knob between a fast and slow mode of operation) and horizontal-vertical navi-
gators, which allow the parameter buttons (when used in program and configuration mode) to
navigate the program screen horizontally and vertically.
Input Meters
The 480 DriveRack™ provides the user with four independent 12 seg-
ment Lightpipe™ input meters that range from -30 to +22 dBu. Note:
These meters are calibrated for the +22dBu setting of the gain jumpers.
Threshold Meters
The threshold meters indicate that the threshold level has been
exceeded within the dynamics section (compressor/limiter), and gain
reduction is taking place within the specific output channel.
Output Meters
The 480 DriveRack™ provides the user with eight independent 12-seg-
ment Lightpipe™ output meters that range from -30 to +22 dBu. Note:
These meters are calibrated for the +22dBu setting of the gain jumpers.
Output Mutes
The eight output mute buttons are used for independently muting each
output on all eight outputs of the 480 DriveRack™.
Power Switch
Turns the 480 DriveRack™ on and off. Note: dbx Professional
Products recommends that power amps connected to the DriveRack™,
should be powered down prior to cycling the DriveRack™.
IEC Power Cord Receptacle
The 481 comes with an International power supply that will accept voltages ranging from 100V-
240V at frequencies from 50Hz-60Hz. An IEC cord is included.
RS485 Control Bus Input (DB-9 connector type)
This input network connection is used to receive information being sent from other units in the
DriveRack™ network link.
RS485 Control Thru Bus (DB-9 connector type)
This Thru network connection is used to pass information to other units in the DriveRack™ net-
work link.
RS485 Control Bus Input (RJ-45 connector type)
1.3 Rear Panel Connections (481)