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Summary of Contents for Cloud 24 Series
- Page 1 24 SERIES TWO ZONE MIXER-AMPLIFIERS Installation and User Guide 24 Series Installation and User Guide V1.0...
- Page 2 The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 24 Series Installation and User Guide V1.0...
- Page 3 Class 2 Wiring, but voltages at these terminals may be of sufficient magnitude to constitute a risk of electric shock. The external wiring connected to these terminals requires installation by an instructed person or the use of pre-made leads or cords. 24 Series Installation and User Guide V1.0...
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Page 4: Table Of Contents
Speaker Outputs ................................17 Connecting to Lo-Z loudspeakers ..........................17 Connecting to 70/100 V-line systems ........................17 Power Sharing (Model 24-120 only) .........................17 Auxiliary Output ................................18 Utility Output ...................................18 Facility Port ................................19 Connecting an active remote module ..........................20 24 Series Installation and User Guide V1.0... - Page 5 24 SERIES SERIAL CONTROL..........................23 Abridged command set ..............................23 Examples ....................................23 APPENDIX ................................25 PCB jumper locations .................................25 Table of internal jumpers and default settings ......................26 Troubleshooting ..................................27 EMC Considerations ................................27 Earthing ....................................27 TECHNICAL SPECIFICATIONS ..........................28 24 Series Installation and User Guide V1.0...
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Page 6: Safety Information
BS EN 55032:2015 (Emissions) Caution – Mains Fuse BS EN 6100-3-2:2-14 (Harmonics) Cloud 24 Series mixer-amplifiers contain no user-replaceable fuses. Mains over-current protection is provided by the fuse in the IEC receptacle: only replace this fuse with one of an This product has been tested for use in commercial and light identical type and rating. -
Page 7: Overview
Zone 1 loudspeaker systems selection or be permanently LINE 1 All references to “24 Series” throughout this Installation and • Per-zone auxiliary output from pre-amp (balanced, line User Guide may be taken as being applicable to either model. -
Page 8: What's In The Box
What’s in the box Please check the shipping carton for damage before opening. If there is damage, please contact your Cloud agent and the shippers. The packing carton should contain the following items: • 24 Series mixer amplifier • IEC mains lead (AC cord) with moulded plug appropriate to the territory •... -
Page 9: Schematic Diagram
Schematic Diagram MPA MK2 Installation and User Guide V1.0... -
Page 10: Front Panel Description
Power off Green Normal operating mode Standby (APD) mode Power reduction due to high temperature Flashing green Fault condition - outputs muted Flashing red Forced air cooling intake slots – do not block. 24 Series Installation and User Guide V1.0... -
Page 11: Rear Panel Description
21. RS232 – bi-directional RS-232 interface: accepts commands to select or adjust various unit functions and parameters from an external AV control system. 22. SPEAKER OUTPUTS for each zone – connect to either low-Z loudspeakers (4 or 8 ohms) or to 70/100 V-line distribution system. 24 Series Installation and User Guide V1.0... - Page 12 25. AUXILIARY OUTPUT – per-zone balanced line level outputs for feeding additional amplifiers, etc. 26. MUSIC MUTE – Emergency control input for muting music. 27. IEC mains input with mains switch and integral fuseholder. 24 Series Installation and User Guide V1.0...
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Page 13: Installation
“universal” type, and will operate on all AC mains supplies of between 85 V and 265 V, 45 to 65 Hz. An IEC mains cable The 24 Series mixer-amplifier is built in a 1U-high 19” rack with a plug appropriate for each country is supplied with the mount enclosure. -
Page 14: Connections And Controls
SOURCE products have six music inputs. The RSL-6 may be used LEFT CHANNEL with the 24 Series provided that internal PCB jumpers J6 screen and/or J8 are moved from their default (RSL-4) position to the alternative (RSL-6) position: in this case, the music channel will be muted in two of the source switch settings. -
Page 15: Music Equalisation
100 metres). detection. It is then compatible with paging microphones using zone selection by contact-closure such as the Cloud PM Setting the blue Z1 or Z2 LOCAL/REMOTE button adjacent Series, including the PM1 single-zone microphone. See page to the REMOTE connectors to REMOTE (button IN) activates 16 for more details. -
Page 16: Paging Control And Mic Priority
• SW3 – Z2 PRIORITY: this switch performs the same as function as described for SW2 in Zone 2. • SW4 – CHIME: 24 Series mixer-amplifiers have an internal pre-announcement chime generator. With SW4 set to ON (switch down), the chime is triggered by the ACCESS input when the mic input is in Page Mode (SW1 set to PG), thus the chime is heard only in the zone selected for paging. -
Page 17: Outputs
A switch-on delay function mutes the output during power-up and power-down to protect loudspeakers. Each zone of a 24 Series mixer-amplifier has both a low 8 ohm loudspeaker impedance output (4 or 8 ohms) and a high voltage output for 70/100 V-line speaker systems. -
Page 18: Auxiliary Output
Auxiliary Output Utility Output 24 Series mixer-amplifiers are provided with auxiliary outputs The mixer-amplifier also has a Utility output, which is ideal from each zone: these are available on the AUX OUTPUT for providing the feed to a loop amplifier, or for connection connectors [25]. -
Page 19: Facility Port
The pinout of the Facility Port connector is given in the table Facility Port below: 24 Series mixer-amplifiers are provided with a FACILITY PORT in the form of a rear panel RJ45 connector [18]. The primary Cat 5 CORE* use of the Facility Port is for the connection of remote active modules such as the LM-2 or BT-1, but it may also be used Audio ‘cold’... -
Page 20: Connecting An Active Remote Module
LM-2 mic/line input module, with music source Facility Port. and level controls NOTE: 24 Series units are only compatible with the BT-1F variant of the BT-1: do not attempt to connect variant BT-1E. L-1/M-1: The L-1 and M-1 are remote active input modules... -
Page 21: Music Mute (Fire Alarm Interface)
REMOTE MUSIC MUTE TERMINATIONS To avoid any problems associated with differences in mains MUSIC MUTE MUSIC MUTE supply earthing, we recommend that all 24 Series mixer- INPUT INPUT amplifiers used in a multi-zone application should be co- located and connected to a common mains supply. -
Page 22: Using The Facility Port As An Auxiliary Input
J6 and/or J8 are in the default RSL-4 position. INPUT DC VOLTAGE RESISTOR VALUE >+3.2 V Open-circuit Line 1 +1.95 V Line 2 +1.5 V Line 3 +0.9 V Line 4 Short-circuit 24 Series Installation and User Guide V1.0... -
Page 23: 24 Series Serial Control
AV control system. For all other commands, Similarly, a command that would decrement the level below data requests and responses, please refer to the 24 Series’ full 90 dB attenuation will mute the Zone output. RS-232 protocol document. - Page 24 Zone 2 by 2C 4C 55 36 2F 3E 6 dB 3. Mute/Unmute Mics The 24 Series mixer-amplifier’s mic input may be enabled or disabled. This may be done on a per-zone basis or globally (both zones). EXAMPLE COMMAND (ASCII) COMMAND (HEX) <Z2.M1,M/>...
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Page 25: Appendix
PCB jumper locations 24 Series mixer-amplifiers have various internal jumpers, the setting of which may require alteration during installation. The diagram below shows the locations of the internal jumpers (not to scale), all of which are located on the main PCB. The table below lists each jumper and its purpose, together with the factory default setting. -
Page 26: Table Of Internal Jumpers And Default Settings
EN: a signal at Line Input 4 will take priority in Zone 2 Priority over all other Line Inputs, but not over the Facility Port. Main PCB Main PCB FOR FACTORY USE ONLY – DO NOT FIT A JUMPER HERE ABSENT Main PCB 24 Series Installation and User Guide V1.0... -
Page 27: Troubleshooting
Troubleshooting EMC Considerations Fault conditions are indicated by the front panel STATUS LED Cloud Series 24 mixer-amplifiers fully conform to the [6] flashing either red or green. relevant electromagnetic compatibility (EMC) standards and are technically well behaved. You should experience no... -
Page 28: Technical Specifications
5 x 20 mm, time delay, T5A 0 °C to 35 °C (Note: performance and specifications cannot be guaranteed Normal operating temperature outside of this range) Cooling Forced air cooling (front to side) 24 Series Installation and User Guide V1.0... - Page 29 . Power: constant sound level at one-eighth maximum rated output (audio mainly clean, only occasional clipping) . Power: constant sound level at one-third maximum rated output (audio beginning to become compressed, limited or heavily clipped) 24 Series Installation and User Guide V1.0...
- Page 30 www.cloudusa.pro...
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