PM1 Paging Microphone Installation and User Guide
Contents Introduction....................................................................4 Safety Information.................................................................................... 4 Overview.................................................................................................... 5 Scope of this guide................................................................................... 6 What’s in the box...................................................................................
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/ amplifier) 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.
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 fitted 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.
Scope of this guide The primary purpose of the guide is to describe the connection of the PM1 to a host zoner or mixer/amplifier. For the benefit 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.
PM1 components 2 1 1 2 3 Microphone capsule Flexible gooseneck PTT (Press To Talk) button 3 4 13 6 5 11 9 7 10 12 8 PM1 internal PM1 baseplate 4 5 6 7 Cable access holes Rubber feet (x3) Base securing screws (x5) Screws for internal cable clamps (x4) 8 9 10 11 12 13 Cable clamps (x2) Microphone output connector (audio signal) Access control connector Jumper for ground interconnection (see text) Mic capsule cable PTT (Press To Talk) button PM1 Installation and User Guide v1.
Using the PM - Recommendations for use To the installer: please photocopy this section and leave with the customer. Making an announcement 1. 2. 3. To start announcing, press and hold down the TALK button. Make the announcement. When the announcement is finished, release the TALK button. General Dos and Don’ts • • • • • • 8 Think what you need to say before making the announcement. Speak slowly and clearly in a normal speaking voice.
Installation 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 finish, 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).
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).
The other end of the control cable should be connected to the host mixer’s Access Port. It may be necessary to configure the mixer for correct operation with a paging microphone. Mixers/zoners with more than one microphone input will probably have an Access Port catering for each input; be sure to connect the control cable to the terminal related to the microphone input being used.
Cable lengths The maximum permissible length of cable between the PM1 and the host mixer is dependent on the quality of the cable(s), the input of stage of the mixer and the general electrical environment in the building. However, as rough guidance, it should work satisfactorily with cable runs up to 100 m when connected to a well-designed mic input stage (such as found in the Cloud CX Series) with professional microphone cable.
Specifications MICROPHONE Type Dynamic, Cardioid Frequency Response 80 Hz – 15 kHz Sensitivity -54 dB ±3 dB (0 dB = 1 V/Pa at 1 KHz) PTT SWITCH Type Momentary Contacts NO and NC CONNECTIONS Audio Balanced, 3.5 mm-pitch screw terminals Control NO/NC, 3.5 mm-pitch screw terminals Cable Access At rear, 9 mm max. dia., internal retention PHYSICAL Base dimensions (W x D x H) 150 x 150 x 43 mm Gooseneck length (inc capsule) 312 mm Weight 430 g PM1 Installation and User Guide v1.
Microphone frequency response Source level: 0.1 Pa Measurement distance: 50 cm Test instruments: Bruel & Kjaer 2012 & 9640 0° Microphone polar plot Source level: 0.1 Pa Frequency: 1000 Hz Measurement distance: 50 cm Test instruments: Bruel & Kjaer 2012 & 9640 14 PM1 Installation and User Guide v1.
Notes PM1 Installation and User Guide v1.
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.
