Cloud CX261 Installation And User Manual - Page 12

Browse online or download pdf Installation And User Manual for Mixer Cloud CX261. Cloud CX261 20 pages. Mp3/zone mixer

Print Page

In either case no microphone signals are present at the

auxiliary/MOH output, thus announcements made via the

microphone inputs do NOT interrupt music programme at

this output, regardless of any priority settings.

Music Mute

(Fire Alarm Interface)

In some installations (such as licensed premises or retail

outlets within a shopping mall), there may be a local

authority or fire service requirement to mute the music

signals from a fire alarm control panel when an alarm

condition arises. The CX261 includes a facility to mute the

music programme only (i.e., mic inputs are still active), via

the Music Mute input. This is a 2-pin 5 mm-pitch screw

terminal connector on the rear panel. The input is usually

connected to a pair of isolated relay contacts activated by

the fire system.

Note that the Music Mute function only mutes the CX261's

main outputs; the auxiliary/MOH output remains active.

Activation of the Music Mute is often via a relay mounted

close to the CX261 and its associated amplifiers, powered

by the fire alarm control panel. Other arrangements may

exist depending on the design of the fire control system

and the fire alarm installation company should be consulted

when making the connection. The CX261 will mute on

either a contact closure at the Music Mute input (NO) or

an open circuit (NC). Selection of NO or NC operation is

made with internal jumper J9. NO is the factory default. See

page 15 for details of jumper location. The diagram below

shows the two connections.

MUSIC MUTE

INPUT

NORMALLY OPEN (NO)

CONNECTION

fig.11: Remote music mute terminations

Bose® Equalisation Modules

The CX261 is compatible with single channel Bose®

Series II equalisation modules. EQ modules are available to

suit the following Bose® loudspeakers:

•

Panaray® MA12

•

Panaray® 402-II, 502B and 502BEX

•

Panaray® LT Series:

Models 3302, 4402, 9402 and 9702.

Modules to suit other models are available – please enquire.

CX261 User Manual v1.0

Installation Instructions

Refer to the PCB layout diagram (see page 15) for the

location of the Bose® EQ module connectors. Note that

there are two connectors, one per main output (LEFT and

RIGHT). There is no provision for fitting an equalisation

module to the auxiliary/MOH output.

To install an EQ module, proceed as follows:

•

Switch off the power and isolate the unit from the

mains.

•

Remove the top panel.

•

Plug the Bose® equalisation module onto its connector;

note that the connector has two notches on one

side which engage with lugs on the module's mating

connector to ensure correct orientation.

•

Replace the top panel.

MUSIC MUTE

INPUT

NORMALLY CLOSED (NC)

CONNECTION