Cloud CX-A450 Betriebsanweisung PDF herunterladen (Seite 7)

CX-A450:

Installation and Operation Manual 5

07-03-05 V3.0

The output load should then be connected between the two positive (HOT) outputs of the

relevant channels (no connection to 0V). You must ensure that the positive wire is

connected to the "first channel" output and the negative wire is connected to the "second

channel" output (see fig 6).

9 Status Indicators

The front panel of the CX-A450 has an array of LED’s that indicate the status of all four

channels (see Fig 7).

The lower green ‘signal’ LED illuminates when a signal is detected, the yellow 'peak' LED will

illuminate when the amplifier’s DCP is operating and the top red ‘protect’ LED indicates that

the protection relay has disconnected the load. Please note that it is normal for all four red

LED's to illuminate for approximately five seconds when the unit is switched on, indicating

operation of the switch-on delay circuitry. The green ‘power’ LED at the bottom right of the

front panel illuminates when the power is switched on.

10 Power Supply Capacity

The CX-A450 has 100mA of current available for optional modules. Exceeding this limit will

cause temporary power supply failure. Use the table below to verify your proposed system

does not exceed this limit.

Module Name Current Required

BOSE® EQ cards: M8, M32, MA12, 402, 502A, 802, MB4, MB24,

502B, 502BEX

12mA

BOSE® EQ cards: LT3202, LT4402, LT9402, LT9702 17mA

BOSE® EQ card: M16 24mA

VCA-5 9mA

11 VCA Modules

A single channel VCA module ‘VCA-5’ is available as a plug-in option

for each of the four channels. When a VCA-5 is installed to a channel

it allows the channel level to be controlled remotely with the optional

RL-1 remote plate.

The circuitry uses the industry standard 'Thats 2150A' VCA providing

very low distortion and up to 90dB attenuation. The VCA module can

be wired to provide muting by using an auxiliary relay connected to a

fire alarm control panel. Contact our technical department for further

details.

12 VCA Module Installation

1. Turn the power off and remove the mains cable

2. Remove the top panel

3. Select the required PCB mounted VCA connector

and remove its jumper (see list below)

CON1 = Channel 1

CON2 = Channel 2

CON3 = Channel 3

CON4 = Channel 4

Fig 7

Fig 8

Fig 9

1 2 3 4 5 6 7 8 9 10 11

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