Z4II Z8II User Guide V8.0
Contents
1. AUDIO TRANSFORMER RS PART NUMBER 210 6447 FITTED WITH SCREENING CAN RS PART NUMBER 210 6469 16 Z4u amp Z8u Installation and User Guide 27 EMC Considerations The Cloud Z4 amp Z8 fully conform to the relevant electromagnetic compatibility EMC standards and are technically well behaved you should experience no operational problems and under normal circumstances no special precautions need to be taken If the unit is to be used within close proximity to potential sources of HF disturbance such as high power communications transmitters radar stations and the like the performance of the mixer may be reduced we suggest that the microphone cable screen be connected to the shell of the XLR type connector and the line input leads are kept as short as possible 28 Technical Specifications Line inputs Frequency Response 20Hz 20kHz 0 5dB Distortion lt 0 05 20Hz 20kHz Sensitivity 195mV 12dBu to 2 0V 8dBu Input Gain Control 20dB range Input Impedance 47kQ Headroom gt 20dB Noise 90dB A weighted OdB gain Equalisation HF 10dB 10kHz LF 10dB 50Hz Microphone Inputs Frequency Response 100Hz 3dB filter 20kHz 0 5dB Distortion lt 0 05 20Hz 20kHz Gain Range 10dB 50dB Input Impedance gt 2kQ balanced Phantom power 15V PCB jumper for on off Headroom gt 20dB Noise 120dB EIN 22Hz 22kHz 150Q Equalisation HF 10dB2. BALANCED INPUT Each zone is fitted with a facility input this 9 pin REMOTE sub D connector provides direct access to the RETE respective zone and is primarily used to connect one SOURCE of the dedicated active modules AE 1 DM 1 or LM 1 The active modules extend the facilities of the mixer on a zone by zone basis by providing remotely located zone access and control for example the AE 1 module can be used to provide a direct input into a particular zone specifically for aerobic purposes see section 24 1 The DM 1 module is fitted with two balanced microphone inputs the module can be used in multiples see section 24 3 and the LM 1 module provides one balanced microphone input a line level music input and remote control of the mixer s music source and level see section 24 4 The facility input can also be used as a direct input to the respective zone via a line level balanced input Important note Refer to Section 19 before installing any active module Power Supply Capacity The power supplies of the Z41 and ZB venue mixers have an external load capacity of 120mA for the Z4m and 190mA for the ZB Care should be taken when wiring or connecting modules and external devices to the Z4m and Z8m mixers since exceeding the external load capacity risks temporary power supply failure The table below lists the current consumption of each compatible Z4n and ZB module and external device Use the table on the following page to verify th
3. ON position When the priority is on the mixer will operate normally until a signal is detected on line input 6 this causes the selected signal usually background music to mute allowing the signal on line 6 to operate with priority Once the signal on line 6 ceases the selected music signal will smoothly restore to its former level The time taken for this restoration can be 3 6 or 12 seconds dependant on how internal jumper J3 has been set for 12s restoration remove the jumper altogether The factory default is 3s When setting the jumper s please ensure that you e Remove the mains cable from the rear of the product before removing the top panel e Only reassemble the unit using screws identical to the original parts Microphone Inputs Two microphone inputs are provided and the microphone amplifier is an electronically balanced transformerless design configured for optimum low noise performance The input impedance is greater than 2kQ and is suitable for microphones in the 2000 to 600Q range Inputs are via gold plated female 3 pin XLR type connectors with latch and these are positioned on the rear panel A facility to provide 15v phantom power is included and this can be activated by setting a jumper adjacent to the Mic input connector on the mother board to the ON position J1 applies to Mic 1 J2 applies to Mic 2 and the jumper J3 relates to the paging microphone input The location of J1 is shown on the next page Z4
4. cok J R24 c2 CJ R2 E SOURCE TR3 I 8e 3 ELECT C ww cia B PSS R17 D mci pokes L c3 KKR L LG sra Jl TRL 23 C3 R52 C12 9 ICS C19 gy TLO72 M lS E R49 Le R c6 R24 L Ree VR2 R16 VRG MIC FACILITY T 35 6s PRIORITY J3 ECO R62 R63 C_ R25 rus C R27 Swi 5 ip E ey IB i N ISt B OBE I en bbh R3 7 Ic2 gt D D wia I L C mMm BASS Re 3 3 R58 R57 ICS ICE tre Tes X BE RI Re PC315 9 v1 3 Z4 Z8 ZONE BOARD Active Modules general specification The Cloud AE 1 DM 1 amp LM 1 are the same physical size as a double UK electrical socket 13A type and can be mounted in the recessed back box provided or be surfaced mounted in a standard 35mm deep housing The modules should be connected to the facility input of the host mixer using a single multi core screened cable The module terminations are conventional screw terminals and the facility input on the host mixer is a 9 pin sub D type connector A suitable 9 pin sub D connector is provided GREAT CARE MUST BE TAKEN WHEN TERMINATING THE MODULES POWER IS DERIVED FROM THE HOST MIXER AND CERTAIN WIRING ERRORS CAN CAUSE POWER SUPPLY PROBLEMS RESULTING IN TEMPORARY FAILURE OF THE MIXER ALWAYS CHECK YOUR WIRING BEFORE TESTING THE SYSTEM Please refer to section 18 for further details of the facility input connector Z4n amp ZB Installation and User Guide 11 25 1 3
5. 5kHz LF 10dB 100Hz Facility Input Input Impedance 10kQ balanced pin 3 pin 4 Sensitivity OdBu 775mV Noise Gate Ground pin 5 to open Outputs Balanced Zone Outputs 775mV OdBu 3 pin Phoenix type connector Minimum load impedance _ 600 ohms Maximum output level 20dBu 7 75V 29 General Specifications 30 05 03 V8 Power input 230V 10 115V 10 AC 40 60Hz Fuse rating ZB 230V T125mAH 115V T250mA H Z4 230V T100mA H 115V T200mA H Fuse type 20mm x 5mm 250V Dimensions 482 60mm x 132 50mm 3U x 160 00mm deep connectors Weight Z4 3 83 kg net Z8 4 40 kg net Z4n amp ZB Installation and User Guide 17 This product conforms to the following European EMC Standards C BS EN 55103 1 1997 BS EN 55103 2 1997 This product has been tested for use in commercial and light industrial environments If the equipment is used in controlled EMC environments the urban outdoors heavy industrial environments or close to railways transmitters overhead power lines etc the performance of the unit may be degraded The product conforms to the following European electrical safety standard BS EN 60065 1998 Safety Considerations and Information The unit must be earthed Ensure that the mains power supply provides an effective earth connection using a three wire termination When the mains switch is in the off O position the live and neutral conductors of the mains transfor
6. a transformer be used to isolate the signal and prevent a noisy loop see section 25 2 Connecting balanced signals to the unbalanced line inputs We recommend the use of a transformer to convert a balanced signal to an unbalanced signal suitable for direct connection to the mixer line inputs The transformer should be mounted close to the Zone Mixer and the unbalanced output lead should be kept as short as possible Where both the source unit and destination mixer are earthed it is important to isolate the primary and secondary windings to avoid a potential ground loop if there is any doubt about this we suggest that the balanced cable screen is not connected at the transformer end Suitable transformers for this application are the RS Components 210 6447 primary amp secondary series connected and we recommend the fitting of the screening can part number 210 6469 Canford Audio supply a similar transformer OEP Z1604 but we suggest that these should be fitted in a screened housing All transformers should be wired to give a ratio of 1 1 ISOLATING TWO PIECES CONVERTING AN UNBALANCED ISOLATING TWO PIECES OF UNBALANCED EQUIPMENT SIGNAL TO A BALANCED SIGNAL OF BALANCED EQUIPMENT USING A 1 1 RATIO TRANSFORMER USING A 1 1 RATIO TRANSFORMER USING A 1 1 RATIO TRANSFORMER SINGLE SCREENED SINGLE SCREENED TWO CORE SCREENED CABLE CABLE CABLE SCREEN NOT USED SCREEN SINGLE SCREENED TWO CORE SCREENED TWO CORE SCREENED ABLE SCREEN NOT USED
7. certain circumstances there may be a requirement to mute the music signals via a fire alarm control panel in an alarm condition The Cloud Venue Mixer provides a facility to mute the music signals by connecting the two pole music mute connector to a pair of relay contacts that are controlled by the fire alarm control panel The jumper J4 on the mother board adjacent to the power transformer selects N O normally open default or N C normally closed contact arrangements The two wire connection should not be connected to any other circuit or voltage In most instances the fire alarm company will provide the relay All the microphone facilities operate normally when the music mute is operating 22 Installing RSL 6 or RL 1 Remote controls The remote control plates RSL 6 and RL 1 are compatible with UK domestic electrical accessories and can be mounted onto a standard British flush or surface mounted 25mm deep back box Two core cable with overall screen should be used to connect the remote controls to the Cloud Mixer because both functions are voltage controlled a cable length of up to 100 metres can be used When using the RSL 6 remote control plate the music control switch on the mixer rear panel should be in the remote position If you propose to use the RL 1 remote level control on any zone STANDARD WIRING CONVENTION MUSIC CONTROL SWITCH SHOULD set the music control switch to the USE TWO CORE SCREENED CABLE BE SET T
8. music source selection Control of music level A maximum gain reduction of 60dB can be achieved with a control voltage of 10V the rate of attenuation is approximately 165mV per dB A control voltage of zero realises unity gain full volume however with no external connection to pin 2 an internal 4k7 resistor connected to 15V will pull up the control voltage to provide maximum attenuation The output impedance of the control voltage source should be low enough to overcome the influence of this resistor Music source selection Here are the details of the music source select control voltages pin 3 required to switch the six line input signals Off gt 9 0V Line 1 7 5V Line 2 6 0V Line 3 4 5V Line 4 3 0V Line 5 1 5V Line 6 OV With no external connection to pin 3 an internal 15k resistor connected to 15V will pull up the source select control voltage and the off position will be selected The output impedance of the control voltage source should be low enough to overcome the influence of this resistor If you would like to fix the music signal to a particular line input wire a fixed resistor from the table below between pins 1 amp 3 on the remote control connector Line 1 16k Line 2 11k Line 3 6k8 Line 4 3k9 Line 5 1k8 Line 6 shorting link If the control voltage source is not isolated from the power earth there is a small risk of creating a ground loop by linking the mixer technical ground
9. set to the remote position Jumper J1 must be in the factory default SW position Important note Refer to Section 19 before installing an LM 1 SOURCE LEVEL 5 6 MICROPHONE INPUT MIC LEVEL PRIORITY CABLE SCREEN Lokal slsislsls R OR K O R R R K O GGG gt 18 i 8 if 108 9 8 7 6 5 3 2 1 a Oc CE Eid RS SOU d l L VRI D2 R9 LM 1 SHI LM 1 CONNECTION TABLE CONNECTOR PIN NUMBER 9 PIN SUB D 1 2 3 4 5 6 7 8 9 SHELL LM 1 Terminals 1 2 7 6 4 9 10 8 5 3 Z4n amp ZB Installation and User Guide 15 30 05 03 V8 Solving problems Ground loops aka Earth loops Despite your best efforts if the completed sound system hums you probably have a ground loop the offending signal source can be found by setting the volume control to minimum then disconnecting the input leads both left amp right channels on each line input until the hum disappears This problem is often caused by terminating a screened input cable into a signal source positioned a significant distance from the mixer A good way of avoiding this potential problem is to use signal sources CD players and the like that are double insulated with no connection to the mains supply earth If a signal feed were derived from a second mixer a club or microphone mixer for example it would be perfectly normal to expect this to be earthed we suggest that
10. 0 05 03 V8 AE 1 Aerobics Module The Cloud AE 1 is a remotely located active module with facilities for a line level music input and an unbalanced microphone input The AE 1 is compatible with the Cloud Z4 Z8 and the MPA 626 and can be used for any application where the facilities provided match the system requirements the prime application being the fitness suite where the aerobic instructor is required to connect their music source and radio microphone directly into the house system Use 8 core screened cable to link the AE 1 to the facility input Important note Refer to Section 19 before installing an AE 1 MUSIC INPUTS MUSIC LEVEL FROM FROM HEADPHONE SOCKET LINE OUTPUT MUSIC DUCKING mer m ON SYSTEM 8 MUSIC MUTE MICROPHONE INPUT MICROPHONE LEVEL AE 1 Vaa eran Re I I Ra ws IE VRL RE cu 1234 5 6 7 8 FACILITY PORT CABLE SCREEN AE 1 CONNECTION TABLE CONNECTOR PIN NUMBER 9 PIN SUB D 1 2 3 4 5 6 7 8 9 SHELL AE 1 Terminals N C N C 8 7 2 5 4 6 1 3 Z4u amp ZB Installation and User Guide 30 05 03 V8 DM 1 Dual Microphone Input Module The Cloud DM 1 is a remotely located active module with two balanced microphone inputs via 3 pin female XLR connectors Each input has a level control and overall equalisation is provided by tamperproof treble and bass controls A music ducking switch provides priority over the main system music if re
11. NEL DE amp Z8n Venue Mixer Installation amp User Guide vso 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 Z4n amp ZB Installation and User Guide 30 05 03 V8 Section gt ON OO FW DY kr A SS ke ke K dk o ON On FW YS O Z8u amp Z4n Venue Mixer Installation and operation manual Contents Page Safety NOS eee 3 Generals tracts eee ttt E tete 3 Schematic Diagram 3 Installation enteren enerverende arten dend 3 MUSIC TOUS ever ern nnn 3 Sensitivity amp Gain Control neenenee neren eeeennennnven 4 Music Control Front Panel or Remote Plate eee 4 Music Equalisation sse eee 4 Line 6 Input Priority EE EE ee ae ees 4 Microphone inputs sese ate ee ee eee d Paging MIG TTT 5 Microphone Gain Control ccc sese 6 Microphone Equalisation streven tener nieren entrees 6 High Pass Filet creeerde dte eend deted ak 6 Microphone Level Controls nennen 6 Microphone priority sese 7 Balanced Zone outputs sss eee eee 7 Facility Anp t errno een eee nected oped terete EE 7 Power Supply Capacity eee eee 7 Microphone Priority over Facility Input nnn 8 Remote Music Mute Fire Alarm Interface eenen 8 Installing RSL 6 or RL 1 Remote Controls sese eee 8 Controlling the music functions using external DC control 9 Plug in Bose Equalise
12. O THE REMOTE POSITION remote position and the PCB mounted jumper J1 on the respective REMOTE CONTROL OF MUSIC SOURCE AND LEVEL zone board to the FR position to MIXER i allow front panel control of the music CONNECTOR MUS EMOTE source IN pa MUSIC CONTROL SWITCH SHOULD BE SET IN THE REMOTE POSITION When setting the jumper s please ensure that you L SOURCE FR sw e Remove the mains cable from the FOR APPLICATIONS THAT REQUIRE REMOTE CONTROL OF THE MUSIC rear of the product before LEVEL WITH FRONT PANEL SOURCE PCB JUMPER J1 SHOULD BE SET SELECTION TO THE FR POSITION removing the top panel ATTENTION e Only reassemble the unit using REMOVE POWER CABLE BEFORE MAKING ANY INTERNAL ADJUSTMENTS screws identical to the original parts 30 05 03 V8 Z4n amp ZB Installation and User Guide LO 22 30 05 03 V8 Controlling the music functions using external DC control The Cloud Z4 and Z8 can be used as part of an automated sound system by controlling the music level and music source by an external 0 10V DC voltage The 3 pole connector normally used to terminate the RSL 6 control plate can be used to feed two separate control voltages into the mixer on a zone by zone basis Pin 1 is a ground OV termination common to both control voltages this should be connected to the technical ground OV of the voltage source Pin 2 is the control voltage input for the music level and pin 3 is used to control the
13. OV to the ground OV of the equipment providing the control voltages To minimise this risk of a ground loop occurring we suggest that all pieces of equipment be positioned in close proximity and supplied from the same power outlet Z4u amp ZB Installation and User Guide 25 30 05 03 V8 Plug in Bose Equaliser modules Each zone board has the facility to connect a plug in Bose equaliser module Two modules are available a Model 8 EQ module and a Model 25 32 102 EQ module When fitting a module to one of the zone boards proceed as follows Disconnect the power connector from the mixer Remove the top panel Locate the zone board to be fitted with the module and locate CON2 Remove the jumper from pins 5 amp 6 on the 10 way header CON2 Fit the nylon support post to the hole marked FIX by pressing firmly Align the 10 pole module connector over CON2 and push together Make sure that the nylon support post aligns with the hole in the module Push the module against the mounting post until they click together The 10 pole connector is not polarised take care to position the module correctly and always use the mounting post if only to verify the correct position of the module Important note Refer to Section 19 before installing a Bose Equalisation Module Zone board fitted with Bose EQ Module FR Sw yy SE T SKS Q ICG HT DB tre I EQ OTHER C en Dn rd R m MN SIDE A SH Leid L LS R81 gav k
14. PM microphone refer to section 19 for more details The Z4 and Z8 mixers are compatible with general purpose paging microphones that are fitted with close contact switches HE HOMO or open collector switching devices To open the paging fete microphone channel on any zone the relevant zone access switching terminal for that zone should be connected to OV as Fac ad shown in the diagram opposite If all access terminations are A ae permanently connected to OV the paging microphone input will Z5 qe function as general purpose microphone input Z4 eee s r Z3 ee Microphone Gain Control ee Zi eee Pre set gain controls are provided adjacent to the respective XLR input connector The gain can be adjusted from 10dB to 50dB and this wide range of gain allows direct connection of high output devices such as radio microphones without the need for additional attenuation A high overload margin is maintained at all gain settings Microphone Equalisation Two band equalisation is provided for both Mic 1 and Mic 2 the pre set controls are positioned alongside the input connector and gain control on the rear panel The characteristics of the equalisation is optimised for the tonal correction of speech signals and the treble control HF provides 10dB at 5kHz with the bass control LF 10dB at 100Hz High Pass Filter All three microphone channels feature high pass filters operating at 100Hz which provides
15. at the external load of your proposed system falls within the specified limits External Active Device Internal Module Current Consumption CPM4 amp 8 40mA AE 1 9mA DM 1 18mA LM 1 12mA Bose Equalisation Module 7mA oo Z4u amp ZB Installation and User Guide If the mixer has a CPM paging microphone installed you have the option to power the microphone with the CPM PSU external power supply This will reduce the load on the system by 40mA If a power supply failure occurs switch off the mixer and disconnect the remote modules the mixer should be left off for approximately 30 seconds to allow it to reset Check the wiring and total current consumption of the external active devices before reconnecting the power and if the problem persists contact our technical department 20 Microphone Priority over Facility Input Every vertically oriented zone board has a jumper marked J4 this jumper sets the microphone over facility signal priority In the OFF position default all microphones will not override the signals of the facility input i e AE 1 DM 1 or LM 1 In the ON position MIC 1 MIC 2 and the paging mic have a 30dB priority over the facility input When setting the jumper s please ensure that you e Remove the mains cable from the rear of the product before removing the top panel e Only reassemble the unit using screws identical to the original parts 21 Remote Music Mute Fire Alarm Interface In
16. d to clear the connectors Avoid positioning the units in close proximity to magnetic fields or equipment operating at a high temperature Music Inputs Both the Z4 and Z8 operate in mono however all the line level music inputs are in stereo these are internally mixed to form a mono signal The six line inputs are suitable for most music sources such as CD players tape players and receivers etc All the stereo inputs are unbalanced and use RCA type phono sockets The input impedance is 47kQ EN Z4u amp ZB Installation and User Guide N oo LO 30 05 03 V8 Music Inputs Sensitivity amp Gain Control All six line inputs have a pre set gain control on the rear panel adjacent to the respective input sockets The input sensitivity can be varied from 12dBu 195mV to 8dBu 2 0V The pre set gain controls should be set so that all the input signals operate at the same level within the mixer so that the change in level when switching sources is minimal The input gain controls can also be used to limit the amount of gain available from the user controls Music Control Front Panel or Remote Plate The music source and music level control functions of a zone can be operated from the front panel or remotely via the optional RSL 6 remote source amp level plate When a remote control plate is connected to a zone the rear panel mounted music control switch must be in the Remote position The RSL 6 can be positi
17. effective attenuation of breath blasts and low frequency handling noises The circuitry providing this feature is fixed and cannot be defeated Microphone Level Controls Separate front panel mounted controls for Mic 1 and Mic 2 level are provided for each zone These controls provide the user with a convenient means to operate either microphone at a suitable level in any zone rotating any mic level control to the fully anti clockwise position effectively turns the microphone off The microphone signals are routed directly to the main output stage of the respective zone and mic signals are totally unaffected by the operation of the music controls The Mic 1 amp Mic 2 gain controls 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 For the benefit of the operator self adhesive labels are provided to identify the microphone channels and these can be fixed on the mixer front panel in the space provided to the left of the level controls LINK TO OV TO OPEN RESPECTIVE ZONE Z4n amp ZB Installation and User Guide N 16 18 19 30 05 03 V8 Microphone Priority Fully automatic voice operated priority is provided When any microphone is used the music signals will attenuate by approximately 30dB after the announcement the music signals will restore smoothly to their former level Priority over Mic 1 amp Mic 2 is provided for the
18. mer are 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 35 C CAUTION Hazardous Live Do not touch any part or terminal carrying the hazardous live symbol 47 while power is supplied to the unit Terminals to which the hazardous live symbol refers require installation by a qualified person 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 serviceable parts Refer servicing to qualified service personnel Do not perform servicing unless you are qualified to do so Disconnect the power cable from the unit before removing the top panel and do not make any internal adjustments with the unit switched on Only reassemble the unit using bolts screws identical to the original parts Bose is a registered trademark of The Bose Corporation In the interest of continuing improvements Cloud Electronics Limited reserves the right to alter specifications without prior notice Cloud Electronics Limited 140 Staniforth Road Sheffield S9 3HF England Telephone 44 0 114 244 7051 Fax 44 0 114 242 5462 E mail Info cloud co uk 30 05 03 V8
19. microphone can be internally configured to activate a pre announcement chime as well as an internal sounder so that the chime is audible to the operator When using a single CPM paging microphone use the wiring diagram shown below Wiring a CPM Microphone to a Z4 or Z8 Venue Mixer Z4 8 ACCESS CPM 4 8 CONNECTOR CONNECTOR OV fx ONLY Vv 8 7 6 5 4 3 2 1 Z5 CPM 8 Z6 ONLY Z7 VE AUDIO EU 2 7 zaize PAGING 3 MIC INPUT VE AUDIO FOR CPM 4 AND Z4 CONNECTIONS OMIT THE ZONE SELECTION LINES Z5 TO Z8 En Up to 5 CPM paging microphones can be used with a Z4 or Z8 Venue Mixer when wiring more than one CPM paging microphone either the Z4 or Z8 Venue Mixers please use the diagram on the following page 30 05 03 V8 oO Z4u amp ZB Installation and User Guide 12 13 14 15 30 05 03 V8 Wiring Multiple CPM Paging Microphones to a Z4 or Z8 Venue Mixer Z4 or Z8 SECOND CPM EXTERNALLY POWERED CPM 8 ONLY 1 1 1 1 1 i SPER aV GND BV M l FIRST CPM POWERED BY Z4 OR z8 CPM 8 ONLY 1 1 1 1 1 EL SPER BV GND OV PAGE MIC INPUT CONNECTOR PAGE MIC ACCESS CONNECTOR TO OTHER PAGE MICS p o ZM KO 0409 PAGING MICROPHONE ZONE ACCESS SWITCHING OV 8 7 6 5 4 3 2 1 V In certain circumstances the Z4 and Z8 can power more than one C
20. n amp ZB Installation and User Guide a Location of Jumper J1 For balanced microphones connect the cable screen to pin 1 the in phase signal to pin 2 and the reverse phase signal to pin 3 For unbalanced microphones connect a wire link from pin 1 ground to i TE On MICROPHONE pin 3 inside the XLR cable mounted plug a p i PHANTOM use pin 1 as ground cable screen and pin 2 as hot Do not use the phantom power facility with unbalanced terminations When setting the jumper s please ensure that you e Remove the mains cable from the rear of the product before removing the top panel e Only reassemble the unit using screws identical to the original parts e Use a microphone that requires phantom power 11 Paging Microphone A dedicated paging microphone input is provided with adjacent gain control and equalisation pre sets Once the input gain control has been set the paging mic level of each zone can be optimised by adjusting the front panel mounted pre set level controls The Cloud CPM 4 amp CPM 8 zone paging microphones are available as an optional accessory both microphones feature zone selection switches allowing paging to all four or eight zones in any combination in addition a call all button is provided for announcements to all zones The zone select buttons have push on and push off operation however they can be internally configured to automatically reset after an announcement has been made A CPM
21. oned up to 100 metres from the mixer and two core cable with overall screen should be used Self adhesive labels are provided to identify the signal source on both the mixer front panel and the RSL 6 If it is preferred to provide remote control of the music level without remote source selection the RL 1 remote level control can be wired to any zone using a two wire connection see section 21 for more installation details The LM 1 active module also includes the remote music source and music level function see section 24 4 for full details Music Equalisation Separate treble and bass controls are provided exclusively for the music signals on each zone This arrangement allows the installer to optimise the response of the music signals on a zone by zone basis where different acoustic properties require optimal equalisation adjustment The pre set controls are located on the rear panel adjacent to the respective zone output connector A flat response can be achieved by positioning the adjustment slot in the horizontal plane The music treble control HF has a range of 10dB at 10kHz and the music bass control operates with a range of 10dB at 50Hz Line 6 input priority Both the Z4 and Z8 mixers have a facility to allow fully automatic priority to a JukeBox or Spot Announce Player The Z4 mixer provides this facility on all four zones and the Z8 on all eight zones Line 6 priority is activated by setting jumper J2 on the relevant zone board to the
22. paging mic only when a paging announcement is made this has full priority over any signal present on both the Mic 1 and Mic 2 channels In certain circumstances the priority functions may be undesirable the Mic 1 amp Mic 2 priority over music can be disabled by configuring J6 to the OFF position on the respective zone board When more than one paging mic is used the use of any paging mic will inhibit the operation of all other paging mics and the paging microphone busy LED will illuminate The paging mic priority can be triggered by voice detection or by the grounding of the access contact the jumper J5 can be set to VOX for voice triggering default or set to SW for access contact triggering A separate jumper J5 is located on each zone board Balanced Zone Outputs Each zone has a balanced output using a 3 pole Phoenix type connector that can operate into loads as low as 6000 The nominal output level is OdBu 775mV but the mixer can operate with a wide range of signals up to a maximum output level of 20dBu 7 75V For balanced interconnections 2 core screened cable should be used Connect the screen to pin 1 the reverse phase signal normally blue or black to pin 2 and the in phase signal normally red to pin 3 If you wish to connect any zone output to an unbalanced input connect the cable screen to pin 1 with the hot connection inner core to pin 3 and make no connection to pin 2 Facility Input
23. quired Modules can be linked when wired in a daisy chain format see section 24 3 Use 8 core screened cable to link the DM 1 to the facility input and 6 core screened cable when wiring more modules in the daisy chain format Important note Refer to Section 19 before installing a DM 1 MICROPHONE MUSIC INPUT DUCKING OFF O O MIC LEVEL E MICROPHONE INPUT FACILITY PORT CABLE SCREEN LINK 1A M2 S DM 1 1234c PC315111Av1 RER7 zT D rel DM 1 ore anl i M2 5 cif DM 1 CONNECTION TABLE CONNECTOR PIN NUMBER 9 PIN SUB D 1 2 3 4 5 6 7 SHELL DM 1 Terminals N C N C 5 6 2 7 8 4 1 3 oo o Z4n amp ZB Installation and User Guide 13 25 3 Wiring 2 or more DM 1 s in a daisy chain format 30 05 03 V8 Z4u amp ZB Installation and User Guide 25 4 30 05 03 V8 LM 1 Mic line plus remote control of music signals The Cloud LM 1 is a remotely located active module with a balanced microphone input a line level music input and music source select amp level controls rather like a built in RSL 6 A microphone priority switch provides the option to reduce the level of the music signal when the mic is used Use 9 core screened cable to wire the LM 1 to a facility input on any zone of the Z4 or Z8 When an LM 1 is connected to a zone please ensure that the music control switch is
24. r modules nanne 10 Active Modules general specification nennen 10 AE 1 Aerobics Module rennen eenen 11 DM 1 Dual Microphone input module nnen 12 Wiring 2 or more DM 1 s in a daisy chain format 13 N Z4u amp ZB Installation and User Guide 30 05 03 V8 Contents cont Section Page 25 4 LM 1 Mic line plus remote control of music signals 14 26 Solving problems eed 15 26 1 Ground loops aka Earth loops see eee eee eee 15 26 2 Connecting balanced signals to the unbalanced line inputs 15 27 EMG Considerations enen nnen saret 16 28 Technical Specifications sese eee 16 29 General SPECNCONS ernestine deken 16 Z4n amp ZB Installation and User Guide oo N oo 30 05 03 V8 Safety Notes e Do not expose the unit to water or moisture e Do not expose the unit to naked flames e Do not block or restrict any air vent e Do not operate the unit in ambient temperatures above 35 C e Do not perform any internal adjustments unless you are qualified to do so and fully understand the hazards associated with mains operated equipment e The unit has no user serviceable parts Refer servicing to qualified service personnel s lf the moulded plug is cut off the lead for any reason the discarded plug is a potential hazard and should be disposed of in a responsible manner For more detailed information refer to the rear of the manual General The Clo
25. ud Z4 and Z8 are versatile multi source multi zone mixers capable of providing total sound system control for a complex venue The units have applications where two microphones up to 5 paging microphones and up to six line level music signals are required to feed up to eight separate areas in any combination Optional accessories extend the flexibility of the unit dedicated paging microphones with pre announcement chime are available see section 11 the music level and source can be controlled remotely on any zone and active modules can be added to provide special facilities on a zone by zone basis The front panel controls are reduced to a minimum to reduce operational confusion and if preferred the unit can be positioned in a protected area with just the remote music level and source controls positioned in the most appropriate location All pre set controls are mounted on the rear panel A remote music mute facility is provided which may be used to satisfy the requirements of the Local Fire Officer Schematic Diagram ps OFF LCs PHANTOM POWER 1 on C 1 GAIN MIC 2 on C OFF C lt PHANTOM POWER GAIN PAGING OUTPUT PAGING VOLTAGE CONTROLLED SOURCE SELECT De Fee en I Installation The Cloud Z4 and Z8 venue mixers are suitable for mounting in a standard 19 equipment rack and occupy 3 units of rack space The units are 160mm deep but a depth of 235mm should be allowe
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