Alto DPA 4000 Manuel d'utilisateur télécharger pdf (Page 7)

The fan can accelerate the flow of air to lower the temperature inside unit.The inside temperature determines

the fan speed which controls the inside air flowing speed.

18. RS485 IN

The function of the RS485 IN is opposite to RS85 OUT. It allows incoming communication between a DPA2500

/4000 stereo amplifier and PC or another DPA2500/4000 stereo amplifier. The RS485 port is very suitable for

remote control over long distances (Difficult with RS232 standard ports) and daisy-chaining several DPA2500

/4000 stereo amplifiers.

19. RS485 OUT

This is the standard serial communication interface. It allows outgoing communication between a DPA2500

/4000 stereo amplifier and PC or another DPA2500/4000 stereo amplifier. The RS485 port is very suitable for

remote control over long distances (difficult with RS232 standard ports) and for daisy-chaining several DPA

2500/4000 stereo amplifiers.

20. RS232 Serial Communication Port

The RS232 port allows incoming and outgoing communication between the DPA2500/4000 stereo amplifier

and PC via connecting the DPA2500/4000 stereo amplifier to a PC, all the processor functions are possible to

be controlled remotely by ALTO editing software.

17. Fan

4. GETTING STARTED

Switching on the DPA2500/4000, after an initialization procedure, the last selected preset and settings will be loaded,

the number of last preset will appear on the display:

4.1 Preset Selection

There are total 33 presets available: (factory preset: 01, user preset 01.~32.)

Select "PRESET" using SELECT key, the "PRESET" indicator lights up and the last selected preset will

Use UP/DOWN keys to select a desired preset.

Press ENTER key to load the preset.

appear on the display.

4.2 EDIT Menu

This menu includes 4 items: VOLUME, HUM CANCEL, NOISE GATE, MULTICOMP.

- Volume Adjustment (-99~0dB)

Select "EDIT" menu using SELECT key, both the "EDIT" and "VOLUME" indicators will light up, and the last

selected volume level will be displayed.

""Press ENTER key till an additional appeared after the present volume value..

Use UP/DOWN keys to adjust the level of output signal.

Note: this adjustment of volume level effects only on the selected channels.

PRESET

EDIT

VOLUME

CHSEL

HUM CANCEL

COMM

NOISE GATE

MULTICOMP

SIG/LIMITER

UP DOWN SELECT ENTER

1 2 3 4 5 6 7 8 9 10 11 12 ... 19 20

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Alto DPA 4000 Manuel d'utilisateur Page 7

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