Cloud PM1 Manuale utente
PM1
Paging Microphone
Installation and User Guide
Introduction...................................................................4
Safety Information.................................................................................... 4
Overview................................................................................................... 5
Scope of this guide .................................................................................. 6
What’s in the box .................................................................................... 6
PM1 components..................................................................................... 7
Using the PM - Recommendations for use.................8
Making an announcement ...................................................................... 8
General Dos and Don’ts ........................................................................ 8
Installation .....................................................................9
Cables and connections ......................................................................... 9
Audio connection................................................................................ 9
Control (paging access) connection..............................................10
Cable lengths...................................................................................... 12
Grounding issues ...............................................................................12
Specications.............................................................. 13
Microphone frequency response........................................................ 14
Microphone polar plot..........................................................................14
Notes ........................................................................... 15
Contents
PM1 Installation and User Guide v1.0
4
Introduction
Safety Information
The Cloud PM1 contains no active electronics and thus requires no AC or DC
voltage supply. Safety precautions are therefore minimal.
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/
amplier) once the installation is carried out. This means that if the mains wiring of
the host device and/or the building is faulty, the microphone could present a shock
hazard. Fitting a suitable earth leakage circuit breaker (e.g. 30 mA RCD type) to the
mains supply of the host device can provide additional protection.
PM1 Installation and User Guide v1.0 5
Overview
Thank you for purchasing this Cloud PM1 paging microphone.
The PM1 is a single-zone, passive paging microphone; that is, one for use in situations
where announcements are always made to the same area (or areas) of a building*. It
consists of a heavy-duty moulded base tted with a dynamic mic capsule on a
300 mm gooseneck.The base incorporates a PTT (Press To Talk) button which
unmutes the mic and provides switch contacts for the host device’s access connector.
The PM1 is directly compatible with the following current Cloud products:
Z4ii and Z8ii Venue Mixers•
CX163, CX261 and CX263 Mixers•
36/50 and 46/50 Integrated Mixer Ampliers•
MPA-626•
MPA 60/120/240•
DCM-1 Digitally-Controlled Mixer (via its analogue connection)•
Other, older Cloud products may also be compatible; please contact Cloud’s Technical
Department for advice.
The PM1 may also be used with any OEM audio system equipped with ‘short-to-
ground’ paging access for selecting the zone(s) to be paged.
*Other models in the PM range are available which permit announcements to be made to specic areas
of a building – these are termed “multi-zone” paging microphones. Please contact your Cloud dealer/
distributor for more information
PM1 Installation and User Guide v1.0
6
Scope of this guide
The primary purpose of the guide is to describe the connection of the PM1 to a host
zoner or mixer/amplier. For the benet of the user, a section of ‘recommendations
for use’ is also included.
What’s in the box
Cloud PM1 paging microphone•
Installation and User Guide (this manual)•
If any items are received in a damaged state or are missing from the packaging, please
contact your Cloud dealer/distributor at once.Wherever possible, please retain the
packaging until the microphone is satisfactorily installed and working, in case it needs
to be returned to the factory.
PM1 Installation and User Guide v1.0 7
PM1 components
4
Cable access holes
5
Rubber feet (x3)
6
Base securing screws (x5)
7
Screws for internal cable clamps
(x4)
8
Cable clamps (x2)
9
Microphone output connector
(audio signal)
10
Access control connector
11
Jumper for ground interconnection
(see text)
12
Mic capsule cable
13
PTT (Press To Talk) button
1
2
3
4
5
6
7
1
Microphone capsule
2
Flexible gooseneck
3
PTT (Press To Talk) button
8
910
11
12
13
PM1 baseplate PM1 internal
PM1 Installation and User Guide v1.0
8
Using the PM - Recommendations for use
To the installer: please photocopy this section and leave with the customer.
Making an announcement
1. To start announcing, press and hold down the TALK button.
2. Make the announcement.
3. When the announcement is nished, release the TALK button.
General Dos and Don’ts
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.
Don’t start speaking before you press the TALK button, and then also wait•
for any pre-announcement chime which the audio system might produce has
sounded in full before starting.
Don’t release the TALK button until the announcement is nished.•
Don’t twist the gooseneck into odd shapes – it isn’t a toy!•
PM1 Installation and User Guide v1.0 9
Cables and connections
Connections to the PM1 are made via two 3-way screw-terminal connectors on the
internal PCB.Two cut-outs are provided at the rear of the base moulding for cable
access; these can accommodate cables up to 9 mm diameter.A single 2-pair cable
(with an individual screen for each pair) provides the neatest nish, though using two
separate cables for the audio and access connections is perfectly acceptable
(see page 11 for information regarding use of 2-pair cable).
To access the internal connectors, turn the microphone upside-down and remove the
ve self-tapping screws securing the steel baseplate to the moulded plastic base (item
6
in the baseplate diagram on page 7). Gently remove the baseplate from the base
moulding; be careful not to strain the internal mic capsule cable.
Audio connection
If using two separate cables, the audio cable should be a good quality, two-core,
screened microphone cable.The cable should be fed through the left-hand of the
two cable clamps (looking from the rear of the unit), and connected to the left-hand
screw-terminal block (marked AUDIO) on the internal PCB.
Connect to the terminal block as follows:
TERMINAL USE TYPICAL CABLE COLOUR
Hot Phase (+) Red
Cold Anti-phase (-) Black
Screen Screen (Scn) Screen
The other end of the audio cable should be connected to a suitable microphone
input on the host mixer (or zoner). Consult the Installation Guide for the mixer
to conrm the most suitable method of connection. It may also be necessary to
congure the microphone input for use with a paging microphone. As all recent
Cloud mixers and zoners are designed with this application in mind, connection to
them is straightforward.
The maximum cable run over which the microphone will operate satisfactorily is a
function of the cable quality, the design of the host mixer’s input stage and the level
of electrical noise present in the installation environment.As rough guidance, with
professional-quality mic cable and a Cloud mixer, 100 m should present no problems.
Installation
PM1 Installation and User Guide v1.0
10
Note that the mic capsule is a dynamic type and no phantom power is required.
Ensure that the microphone input used does NOT have phantom power enabled as
damage to the capsule may result from the inadvertent application of a DC voltage.
Control (paging access) connection
If using two separate cables, the control cable may be any suitable two-core cable,
though the use of single-core or twin-core screened cable is preferred (especially if
the microphone is more than a few metres from the host mixer). Many installers will
choose to use a second run of microphone cable, which provides a neat appearance.
The control cable should be fed through the right-hand cable clamp (looking from
the rear of the unit), and connected to the right-hand screw-terminal block (marked
ACCESS) on the internal PCB.
Connect to the terminal block as follows:
TERMINAL USE TYPICAL CABLE COLOUR
0V/COMMON Switch common contact (C) Screen
ACCESS N/C Switch normally-closed contact (NC) Core*
ACCESS N/O Switch normally-open contact (NO)
*Connect the core to either N/O or N/C, not both. See following text.
Connect the control cable to the 0V/COMMON terminal and either the ACCESS
N/C or the ACCESS N/O terminal. The PTT (Press-To Talk) switch is tted with both
types of contact (see diagram below); use whichever the host mixer’s Access Port
requires (consult the Installation Guide for the mixer to conrm the convention
used).All Cloud mixers and zoners require the use of external NO contacts for
paging access, so use the ACCESS N/O terminal if connecting the PM1 to a Cloud
host unit.
PRESS TO TALK
C
NC
NO
0V/COMMON
ACCESS N/O
ACCESS N/C
U3
Indice
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