Z4MK3 & Z8MK3 ZONE MIXERS 4 MK3 Microphone 1 0 Four Zone Venue Mixer 10 0 10 0 10 0 10 0 10 0 10 0 10 Microphone 2 0 10 Paging Mic Level 0 10 0 10 0 10 0 10 Music Source 3 4 2 5 1 6 Music Level 10 0 Power Zone 1 Mute 8 MK3 10 0 0 Zone 2 10 10 0 Zone 3 Zone 4 Microphone 1 0 Eight Zone Venue Mixer 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 Microphone 2 0 10 Paging Mic Level 0 Music Source 3 4
Contents Safety Information.......................................................................................................................... 4 Safety Notes regarding Installation............................................................................................................................. 4 Conformities....................................................................................................................................................................
SETTING UP & OPERATION..................................................................................................... 15 Music Inputs................................................................................................................................................................... 15 Gain & level................................................................................................................................................................. 15 Local/remote control.........
Safety Information Safety Notes regarding 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 35°C. Do not touch any part or terminal carrying the hazardous live symbol ( ) while power is supplied to the unit.
OVERVIEW Introduction Thank you for purchasing this Cloud Zone Mixer. We are confident that you will be pleased with its performance, features, flexibility and reliability. The Cloud Z8MK3 and Z4MK3 are versatile analogue multizone audio mixers. They are intended to form part of permanent sound systems in pubs, bars, restaurants, hotels, offices, factories and other areas, where multiple audio sources (background music, TV sound, etc.
Optional System Components RL-1 Series Remote Music Level Control The following components may form part of the audio system and may be ordered separately if required. They may also be retrofitted to a system at a later time. Separate datasheets are available for each of the individual components; download them at www.cloud.co.uk.
PM Series paging microphones Cloud PM paging microphones may be connected directly to the Z8MK3 and Z4MK3. Models are available which can page to 4, 8, 12 or 16 zones. Clearly, not all zones on the ‘higher’ models can be addressed with only one zone mixer. See “Connecting a PM4/4SA/8/8SA/12/16 paging mic” on page 12 for more information. PM1 paging microphone The Cloud PM1 paging microphone is also compatible with the Z8MK3 and Z4MK3. It is a much simpler unit which addresses only one zone.
Description of front panel 8 MK3 3 4 2 1 5 Microphone 1 0 Eight Zone Venue Mixer 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 Microphone 2 0 10 Paging Mic Level 0 Music Source 3 4 2 5 1 6 10 3 2 0 10 0 10 0 10 0 10 0 10 0 10 0 10 4 5 1 6 Music Level 0 Power 10 6 Zone 1 Mute 7 10 9 0 10 Zone 2 0 10 Zone 3 0 10 Zone 4 0 10 Zone 5 8 0 10 Zone 6 0 10 Zone 7 0 10 Zone 8 10 Note - The fr
Description of rear panel 13 14 16 12 10 11 5 5 7 8 4 3 2 6 1 9 15 Note - The rear panel of the Z8MK3 is shown above. The Z4MK3’s is identical, except that it only has output connections for Zones 1 - 4. 1. LINE INPUTS – 6 pairs of RCA (phono) sockets (Line 1 to Line 6) for connection of music sources. Inputs are stereo, summed internally to mono. See page 10. 2. LINE INPUT GAIN – preset trim control for each input, providing ±10 dB of gain adjustment for input level matching. See page 15.
INSTALLATION Hardware Considerations The Z4MK3 and Z8MK3 Zone Mixers are built in 3U-high 19” rack mount enclosures. It is recommended that the Zone Mixer is installed in a 19” rack wherever possible. The units are approx. 160 mm deep, but 250 mm of rack depth should be available to allow for rear connectors and cabling. The Z4MK3 and Z8MK3 have low power consumption and there are no thermal considerations other than ensuring that the ventilation grilles are not obstructed once the mixer is installed.
Amplifiers with unbalanced inputs: When using single-core cable, join ‘cold’ to screen at the source 3 Unbalanced input s LEFT RIGHT + 2 1 SCN If audio amplifiers with only unbalanced inputs are being used (e.g.
Facility Ports Each zone of the mixer is provided with a Facility Port in the form of a rear panel 8-way RJ45 connector. The primary use of the Facility Port is for the connection of LM-2 remote active input modules, but it may also be used as a generalpurpose, per-zone auxiliary balanced input (see “Using the Facility Ports as auxiliary zone inputs” on page 18 for more information on this application).
Standard two-core screened audio cable may be used for the audio signal, and stranded multicore cable with an overall screen for the control cable. The number of cores required in the latter will be determined by the model of PM microphone being used and whether the mixer is a Z4MK3 or Z8MK3; however, note that one additional core will be required if the PM Series microphone is to be powered from the Zone Mixer.
Connecting an RL-1 Series remote control plate Music Mute Wire the remote control plate as shown below. Either singlecore screened or twin-and-screen cable may be used; in the case of the latter, ignore one of the cores. Maximum reliable cable run is 100 m. External muting of music is available at the MUSIC MUTE connector. National or Local Authority regulations governing such systems may require that normal programme material (i.e.
SETTING UP & OPERATION Music Inputs Gain & level To avoid dramatic changes in volume when switching between sources, the Z8MK3/Z4MK3’s music inputs are provided with preset gain trim controls ([2] on page 9). These vary the input sensitivity from -12 dBu (195 mV) to +8 dBu (2.0V). When setting the system up, play audio from all the sources in use and listen to them one at a time in a convenient zone (preferably that in which the mixer is located) at a reasonable volume.
Paging mic input Priorities Phantom Power The Z4MK3 and Z8MK3 offer several options for determining what happens to music signals when announcements are made. The options are selected via internal jumpers, and should be set to suit the requirements of the installation when the system is installed. See page 22 for location of the internal jumpers. The PAGING MIC input also has 15V phantom power available.
is active; during normal operation, the Paging Mic will always take priority over MIC 1 or MIC 2 whatever the setting of J8. Microphone priority over input at Facility Port Note also that because this facility is set on a per-zone basis (by moving J8 on each zone sub-board), it would normally be desirable to move J8 to the same setting on every sub-board.
OPTIONS AND ADDITIONAL INFORMATION LM-2 active input modules – general considerations Cloud LM-2 remote input modules are available in three form factors, to fit double-gang UK, American or German DINstandard electrical back boxes. Back boxes of either the recessed type or surface-mounting type may be used, providing they are at least 35 mm deep. The modules should be connected to the FACILITY PORT of the relevant zone using screened Cat 5 cable as described at page 12 .
RL-1 Series and RSL-6 Series remote control plates – general considerations Cloud RL-1 Series and RSL-6 Series remote control plates are available in three form factors, two fit single-gang UK or American electrical back boxes respectively; the third is a 50 x 50 mm “Media” module, suitable for “Euro-module” mounting frames available in most European countries. Back boxes of either the recessed type or surface-mounting type may be used, providing they are at least 25 mm deep.
Music source Music source for a zone may be controlled by applying various DC voltages of between 0 and +10 V to pin 3, the 0 V reference being connected to pin 1. 0 V at pin 3 will select Line input 6 and between +7.5 and +9 V will select Line input 1. The other line inputs will be selected with intermediate voltages. Taking pin 3 above +9 V will deselect all inputs, making the zone effectively ‘off’ for music. The table below lists the DC voltages required at pin 3 to select each line input.
APPENDIX Application example The Z4MK3 and Z8MK3 will find application in many types of premises, including shops, bars, hotels, schools, conference centres, offices, etc. A typical example using most of the Zone Mixer’s facilities is given below.
PCB jumper location and settings The Z4MK3 and Z8MK3 have various internal jumpers, the setting of which may require alteration during installation. Note that there are jumpers on both the motherboard and the individual zone sub-cards. The table below lists each jumper and its purpose, together with the factory default setting. Note that options selectable by jumpers on the zone sub-board are per-zone, and will need to be set on as many zone sub-boards as necessary.
ZONE 1 ZONE 2 ZONE 3 ZONE 4 ZONE 5* ZONE 6* ZONE 7* ZONE 8* FRONT OF UNIT J2 J1 J3 J4 ZONE SUB-CARDS MOTHERBOARD (at bottom of chassis) POWER TRANSFORMER * Z8 MK3 ONLY KEY: Jumper with two possible positions; black square indicates factory default setting.
PSU capability and optional device current consumption In addition to supplying the Zone Mixer’s circuitry, the internal PSU has the capacity to power some additional items which may form part of a complete system. These include LM-2 active remote input modules (via the Facility Port), loudspeaker EQ cards (fitted internally), and possibly a PM Series paging microphone (powered via the Access Port).
Technical Specifications Z4MK3 & Z8MK3 Line Inputs: Frequency Response 20 Hz – 20 kHz ±0.5 dB Distortion <0.05% 20 Hz - 20 kHz Sensitivity 195 mV (-12 dBu) to 2.0V (+8 dBu) Input Gain Control 20 dB range Input Impedance 47 kohms Headroom >20 dB Noise -90 dB A weighted (0 dB gain) Equalisation HF: ±10 dB @ 10kHz, LF: ±10 dB @ 50 Hz Microphone Inputs: Frequency Response 100 Hz / -3 dB (filter) 20 kHz ±0.5 dB Distortion <0.
Z4-8MK3 Installation and User Guide
Z4-8MK3 Installation and User Guide 27
Cloud Electronics Limited 140 Staniforth Road Sheffield S9 3HF England Tel: +44 (0)114 244 7051 Fax: +44 (0)114 242 5462 email: info@cloud.co.uk web: www.cloud.co.uk Cloud Electronics USA 2065 Sidewinder Drive, Suite 200, Park City, Utah 84060. United States of America. Toll Free: 0855 810 0161 Web: www.cloudusa.pro E-mail: sales@cloudusa.