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CX133 Zone Mixer

Installation & User Guide

V9.0

Cloud Electronics Limited

140 Staniforth Road, Sheffield, S9 3HF England

Tel + 44 (0) 114 244 7051

Fax + 44 (0) 114 242 5462

E-mail

info@cloud.co.uk

Web site http://www.cloud.co.uk

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Summary of Contents for CX133

Page 1: ...Zone Mixer Installation User Guide V9 0 Cloud Electronics Limited 140 Staniforth Road Sheffield S9 3HF England Tel 44 0 114 244 7051 Fax 44 0 114 242 5462 E mail info cloud co uk Web site http www cloud co uk ...

Page 2: ...Operation 4 6 Music Priority 4 7 Microphone Input 5 7 01 Microphone Input 5 7 02 Gain Control 5 8 Front Panel Level Controls 5 9 Microphone Equalisation 5 10 Microphone Priority 5 11 Inhibiting Mic or Music Sections 5 12 Zone outputs 6 12 1 Music Equalisation 6 13 Utility Output 6 14 Music Mute Fire Alarm Interface 7 15 General Notes 7 15 1 Multi zone Applications 7 15 2 EMC Considerations 7 15 3 ...

Page 3: ...vel and microphone level controls In addition a fixed level Utility output is provided to serve general utility areas such as toilets and foyers etc All pre set controls are located on the rear panel with additional configuration jumpers mounted on the printed circuit board Remote level controls can be wired to the two stereo zones for applications that require remote control of the music level 3 ...

Page 4: ...split mode where two remote level plates can be wired to control the left and right outputs independently When operating in the split mode the respective zone of the CX133 should be configured to operate in the mono mode see section 5 Mono Operation The front panel level control can be defeated by configuring the relevant internal jumpers see Figure 3 for full details Use two core screened cable t...

Page 5: ...uring the relevant internal jumpers see Figure 3 When this mode of operation is selected the unit will operate normally until a signal is detected on line 3 and this causes the selected signal usually background music to mute allowing the signal on line 3 to operate with priority Once the signal on line 3 ceases the selected signal will smoothly restore to its former level The time taken for the s...

Page 6: ... at a suitable level in the zone of their choice The microphone signal is routed directly to the respective output stage and is unaffected by the operation of the music level control The gain control on the rear panel should be set at a level where it is not possible to have excessive gain even when the front panel level controls are fully clockwise Self adhesive labels are provided to customise t...

Page 7: ...ntrols are located on the rear panel adjacent to the respective zone output sockets The music treble control has a range of 10dB at 10kHz and the music bass control operates with a range of 10dB at 50Hz 13 Utility Output The CX133 is fitted with a fixed level balanced output primarily intended to provide a mono signal for utility areas such as toilets and foyers where it is desirable to feed a mus...

Page 8: ...ion should be located close together and connected to a common mains supply 15 2 EMC Considerations The CX133 fully conforms to the relevant electromagnetic compatibility EMC standards and is technically well behaved you should experience no problems interfacing the unit to other items of equipment and under normal circumstances no special precautions need to be taken If the unit is to be used wit...

Page 9: ...on LF 10dB 50Hz Microphone Inputs Frequency response 100hz 3dB filter 20kHz 0 5dB Distortion 0 02 20Hz 20kHz Gain range 0dB 60dB Input impedance 2kΩ balanced Common mode rejection 70dB 1kHz Headroom 20dB Noise 128dB EIN 22Hz 22kHz 150Ω HF 10dB 5kHz Equalisation LF 10dB 100Hz Zone outputs Utility output Nominal output level 0dBu balanced Minimum load impedance 600Ω Maximum output level 20dBu 17 Gen...

Page 10: ... disconnected CAUTION Installation Do not expose the unit to water or moisture Do not expose the unit to naked flames Do not block or restrict any air vent Do not operate the unit in ambient temperatures above 35o C CAUTION Mains Fuse Replace the mains fuse only with the same type and rating as marked on the rear panel The fuse body size is 20mm x 5mm CAUTION Servicing The unit contains no user se...

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