PM4/8/12/16 Digital Paging Microphone Installation and User Guide
PM4/8/12/16 Digital Paging Microphone
Contents Contents Introduction....................................................................6 Safety Information.................................................................................... 6 Conformities.............................................................................................. 6 Overview.................................................................................................... 7 Scope of this manual..................................................................
Chime settings.................................................................................... 23 Enabling/Disabling Zone buttons.................................................... 23 Terminating the Digital Paging Interface........................................ 24 Setting the terminations on the Cloud DCM-1......................25 Configuring dual purpose microphone inputs on the Host Mixer....................................................................................
Introduction Safety Information Cloud PM paging microphones operate from a low DC voltage, supplied by either an AC adaptor or the Cloud host device to which the microphone is connected. As such, the microphone requires few safety precautions. However, note that both the metal base of the unit and the mic gooseneck will be electrically connected to the chassis of the host device (e.g. Cloud zoner or mixer/ amplifier) once the installation is carried out.
Overview Thank you for purchasing this Cloud PM paging microphone. Four models of the PM are available: the PM4, PM8, PM12 and PM16. The models differ only in the number of zone select buttons on the front panel (4, 8, 12 or 16 respectively), and consequently in the maximum of zones that can be supported.
Scope of this manual The bulk of this manual is intended to guide you through the installation and configuration of the PM. Sections of the manual cover aspects such as power requirements, connecting the unit to various types of host mixer, and configuring the PM to suit the particular requirements of the installation. These sections will be adequate for situations where there is only a single PM.
Controls and connections 8 1 4 PM16 1 5 9 13 A B C D 9 5 GROUPS 2 6 10 14 3 7 11 15 POWER 9 - 17V AC 12 - N123 BUSY 6 CALL ALL IN OUT CLEAR 4 8 12 16 TALK 10 2 3 2 3 4 5 6 7 8 9 12 13 14 7 Front Panel 1 11 Rear Panel Gooseneck microphone ZONE selection buttons ZONE select LEDs Legend areas for zone identification CALL ALL button TALK button CLEAR button GROUP select buttons BUSY LED 10 11 12 13 14 Digital Paging Interface IN Digital Paging Interface OUT Exter
Using the PM - User Instructions To the installer: please photocopy this section and leave with the customer. General Dos and Don’ts When making an announcement: • Think what you need to say before making the announcement • Speak slowly and clearly in a normal speaking voice • Don’t “swallow” the microphone; unless you are in a particularly noisy environment your mouth need be no closer than 4 - 5 inches (10 – 12 cm) from the mic.
Zone groups Zones may be ‘grouped’ together to simplify the procedure for paging several zones simultaneously. Defining a group of zones 1. Select the zones for the group with the ZONE buttons; the selection will be confirmed by the adjacent LEDs. (An incorrect selection may be cancelled with the CLEAR button.) 2. Press and hold down one of the GROUP buttons until the zone LEDs flash. 3. Release the GROUP button. NOTE: This feature may not be available, depending on how the unit has been configured.
Installation Accessing the internal PCB With most installations, it will be necessary at some point to access the PM’s internal PCB. Access is required to make connections to the analogue interface (possibly including DC power connections) and to connect the associated audio output, to move the various configuration jumpers and to adjust the mic or chime levels. To gain access to the PCB, first disconnect any source of external power (e.g. a local external PSU or the Digital Paging Interface).
shafts are still visible. Slide the PM over the screwheads using the keyhole slots, so that the rubber feet act as spacers between the PM baseplate and the wall. If the PM is not tight against the wall, remove the PM, adjust the length of screw protruding and try again. Repeat until a good tight fit is obtained. Refer to the illustration below for drilling instructions.
Power Requirements The PM can be powered either by an external power supply, or from a Cloud host mixer. Using an External PSU An external power supply can be connected to the PM via the 2.1 mm coaxial power socket on the rear panel. A suitable external PSU is the Cloud CPM-PSU. Other AC or DC external supplies can be used with the PM provided they are capable of providing 107 mA at 9-17 V AC or 12-24 V DC.
recommended cable length between the Cloud host mixer and the “last” PM should not exceed 50 m. If longer cable lengths are required, then an external PSU should be connected to the PM. 2. Via the Analogue Port. The PM’s analogue interface allows for DC power. The ‘+V’ and ‘0V’ terminals of the internal port connector should be wired to the ‘+V’ and ‘0V’ pins respectively of the access connector at the Cloud host mixer.
The table below lists the current taken by various Cloud options which may be installed in the host mixer: Option Required Current Active Remote Plates LM-1 12 mA DM-1 18 mA AE-1 9 mA BE-1 24 mA LE-1 22 mA ME-1 43 mA DCM-1 Remote Control Plate CDR-1(F) 50 mA Bose EQ Modules* ® BEQ: M8, M32, MA12, 402, 502A, 802, MB4, MB24, 502B, 502BEX 12 mA BEQ: LT3202, LT4402, LT9402, LT9702 17 mA BEQ: M16 24 mA The installer should check what options (if any) are fitted, and derate the “Available Cu
The IN port will only be used if the system is to have more than one PM. To connect the PM to another PM, connect the OUT port of one to the IN port of the next “in the chain” using the same wiring standard as shown in the table above. See page 27 for full details. A system using the Digital Paging Interface should have a total cable length of less than 1 km. IMPORTANT: The Digital Paging Interface is a data network, and thus must be terminated at both ends.
Connecting the PM to a mixer via the analogue interface In addition to the Digital Paging Interface, the PM incorporates an analogue interface, permitting the PM to be used with any Cloud (or other) mixer which has an industrystandard, short-to-ground access port for zone selection. The connections for the analogue interface are on the internal PCB. Follow the instructions on page 12 on how to access this.
The screen should be connected to 0 V at the mixer end only. The analogue control cable should have a total length of less than 100 m. When all the connections have been correctly made, tighten the locking clamps on the two cable glands to ensure that no strain is placed on the terminals if the external cables are tugged or stretched. Typical example The diagram below shows the overall cable connections between a PM4 and a Cloud 46/50 host mixer (which has a typical 4-zone short-to-ground access port).
Configuring the PM The PM has a number of setup options which can be configured during installation. These modify the operation of the unit in various ways, allowing the PM to be optimised for the particular installation. Most of these options are set by moving internal PCB jumpers. See page 32 for a PCB layout diagram identifying the location of all the jumpers. See page 12 for instructions on how to gain access to the internal PCBs. NOTE: Jumper settings are only checked at power-up.
The zone offset applies to both the Digital Paging Interface and the analogue interface. If the analogue interface is being used to connect the PM to the host mixer, the access cable connections (see page 18) should be altered to match the zone numbers to be paged, not the button numbers. Thus in the example given above, the zone select cores of the access cable would be connected to Z10 to Z13, and not Z1 to Z4. Setting an Offset Zone offset is set with internal jumpers J11, J12, J13 & J14.
Power-On Non-Volatile Memory (NVM) Reset An internal non-volatile memory (NVM) stores user settings such as Group definitions and Zone enabling, so that these are restored automatically in the event of power loss. The PM may be reset to the factory software defaults (group memory empty, all zones enabled), by powering the unit on with jumper J7 set to ON. See page 32 for a diagram showing jumper locations.
Interface. If the PMs are being used in conjunction with other (third-party) paging microphones using short-to-ground zone selection, announcement collisions can occur even between high priority PMs and the third-party system. Chime settings The PM microphone contains four pre-announcement chimes. The selection of chime is made by setting internal jumpers. It is also possible to disable the chime.
5. Continue to hold the CLEAR button and complete the selection/deselection process with the ZONE buttons. 6. Release the CLEAR button once the selection is complete. The selected zones will then be written to memory as the Disabled Group. 7. LEDs for the selected zones will remain illuminated to confirm the selection. Press CLEAR again to clear the display. 8. Reset jumper J7 to OFF to prevent a second NVM reset on a subsequent power-up. (It is better to leave the power on for this step.
The termination is set in the PM with jumper J4. See page 32 for a diagram showing jumper locations. The factory default setting is for the termination to be set ON. If the PM being configured is “mid-chain”, with both its CAN PORT IN and CAN PORT OUT connectors in use, set the termination to OFF by removing the jumper. Setting the terminations on the Cloud DCM-1 The Digital Paging Interface is referred to in the DCM-1 documentation as the ‘CDPM bus’.
Configuring dual purpose microphone inputs on the Host Mixer NOTE: This section is only applicable to systems using Cloud Integrated Mixers Models 36/50 or 46/50, or Zone Mixers Models CX263 or CX163. On these mixers, Mic 1 input needs to be configured for paging use with a Cloud PM by enabling the Mic Access input on the rear panel. Without the Mic Access input enabled, Mic 1 input acts only as a general purpose microphone input and is permanently active.
Systems with multiple paging microphones Connecting a single Cloud PM microphone to a host mixer is quite straightforward. If more than one microphone is required in a system, various additional factors need to be taken into account. As far as systems with multiple PMs are concerned, most of these factors are already covered elsewhere in the manual. The following information may provide some additional guidance.
Note that there is no restriction as to the PM model which is the “last” in the chain – i.e., that which connects directly to the mixer. All PM models support all 16 zones, so in an extreme example, several PM16s could be daisy-chained with a PM4 as the “last” microphone in the chain. All microphones on the system will have full access to whichever zones are required. See also Cables and Connections on page 16.
Mixer Termination ON (with Digital Paging Interface) Termination OFF CDPM THRU IN GAIN (dB) -10 OUT OUT IN CAT-5 IN CAT-5 +10 T Termination ON OUT CAT-5 (INCLUDING DC POWER FROM MIXER) Termination OFF PSU PSU Mixer (with Analogue Paging Interface) Termination ON MIC INPUT Termination OFF GAIN (dB) PAGING ACCESS LF HF - + - + 50 10 1 2 3 0V Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z8 +12V AUDIO OUT OUT IN OUT CAT-5 IN CAT-5 ZONE ACCESS CONTROL (INCLUDING DC POWER FROM MIXER) Terminati
microphones to be unaware of it should they fail to notice the BUSY LED. If simultaneous announcements are made, that starting first will take priority and the later one will be unable to proceed. However, it will often be necessary to assign a higher priority to one paging station in the system – typically that in a security office, where it may the source of emergency announcements.
Only one PM in a network will require the analogue interface for the whole network to be connected to a short-to-ground paging system. This should be the PM “nearest” to the host mixer, as with a system comprised of PMs alone. The PM’s analogue interface senses whether the short-to-ground connections are in use by another microphone. If so, it is assumed that the system is busy. If this is so, only high priority microphones on the PM network may make an announcement.
Appendix PCB layout diagram MIC LEVEL ADJUSTMENT REAR OF UNIT CAN PORT +V TERM2 OUT 0V CHIME LEVEL ADJUSTMENT IN TERM1 TERM4 AUDIO (TERM8) HOT GND COLD Z9 Z10 Z11 Z12 Z13 Z14 Z15 Z16 GND MIC SPKR Z1 Z2 Z3 Z4 Z5 Z6 Z7 Z8 PR2 PR1 HOT MIC CAPSULE & INTERNAL CHIME SPEAKER CONNECTOR COLD + - J6 J5 J4 J3 FLASH MEMORY IC J2 J1 PM Jumper Locations J7 J8 J9 J10 J11 J12 J13 J14 (Illustrative Purposes Only) When removing jumpers we recommend that the link is left connected to one leg
Jumper and default settings summary Jumper Purpose Default J1 Chime Select; +1 ON J2 Chime Select; +2 OFF J3 Chime Select; +4 OFF J4 Digital Paging Interface termination ON J5 Chime On/Off ON J6 Internal Chime On/Off ON J7 NVM Reset OFF J8 High Priority OFF J9 Lock Groups OFF J10 Auto-reset zone selection ON J11 Zone Offset; +1 OFF J12 Zone Offset; +2 OFF J13 Zone Offset; +4 OFF J14 Zone Offset; +8 OFF Technical Specifications Capsule Type Condenser Polar Patte
PM4/8/12/16 Installation and User Guide v2.
PM4/8/12/16 Installation and User Guide v2.
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.
