dbx Pro 4820 Status LEDs, Output Adjustment/Mute Knobs, Output Meters, Serial PC Connection DB-9

DriveRack® Getting Started Section 1

9. Status LEDs

This cluster of four LEDs indicate the following functions:

CLIP - indicates either A/D, D/A, or DSP clipping.

SYNC - indicates DSP syncing to an internal clock, AES/EBU, CobraNet, or Wordclock input.

RS-232 - indicates PC connection via RS-232.

LINK/ACT - indicates connection to and/or activity on an Ethernet network.

10. Output Adjustment/Mute Knobs 1-8

The Output Trim/Mute knobs provide Trim Gain adjustment of each output. Pressing the knob mutes that output.

11. Output Meters

The DriveRack 4800 provides eight independent eight segment output headroom meters that range from SIG (-48dB) to 0dB.

1.3 - Front Panel (4820)

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1. RTA Input Jack

This balanced XLR input is used for the connection of an RTA microphone, which may be used with the Auto EQ function in the Wizard. 48V phantom power is always engaged on this connector.

2. Serial PC Connection (DB-9)

This DB-9 connection is used to communicate to the System Architect control software and uses RS- 232 protocol. This connection requires a Null Modem cable and one is included with the unit.

3.Alpha Numeric Display

This display shows the ID# of the DriveRack 4820 unit. It can also show various error codes.

4. Input Meters

The DriveRack 4820 provides four independent eight segment input headroom meters that range from SIG (-48dB) to 0dB. These meters monitor the signal directly following the input section.

5. Status LEDs

This cluster of four LEDs indicate the following functions:

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DriveRack® 4800/4820 User Manual 5