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OPTIONS AND ADDITIONAL

INFORMATION

RL-1 Series remote control plates –

general considerations

Cloud RL-1 Series remote control plates are available in three

form factors: two fit single-gang UK or American electrical

back boxes respectively, while the third is a 50 x 50 mm

"Media" module, suitable for "Euro-module" mounting frames

available in most European countries. Back boxes of either

the recessed type or surface-mounting type may be used,

providing they are at least 25 mm deep.

Each plate should be connected to the REMOTE LEVEL

CONTROL port of the relevant zone using twin-core

screened cable as described at "Music Control" on page 11.

The plate terminations are conventional screw terminals and

the REMOTE LEVEL CONTROL port on the mixer is

a 4-pin 5 mm-pitch screw terminal connector. A single plate

may be wired for conventional stereo operation, or two

plates may be wired to control the left and right channels of

a zone independently.

The remote control plates are passive and thus do not draw

any significant current from the mixer.

Control of music source and level via

external DC

It may be necessary in some installations to adjust the

music level in one or more zones from an external control

system (e.g., Crestron, AMX, etc.). If the REMOTE LEVEL

CONTROL ports are not required for RL-1 Series remote

control plates, they may be used to receive DC voltages from

the external system to effect these adjustments.

Music level can be controlled over its full range with a DC

voltage of 0 to +10 V. The pinout of the REMOTE LEVEL

CONTROL port is as follows:

USE

0 V ref.

Music level control – Left channel

Music level control – Right channel

+12 V ref.

To control music level in a zone, apply a DC voltage of

between 0 and +10 V to pins 2 and/or 3, with the 0 V reference

connected to Pin 1. 0 V on pins 2 or 3 corresponds to full

level and +10 V will produce maximum attenuation. Between

these two voltages, the rate of attenuation is approximately

165 mV/dB.

NOTE: 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 (0 V) to the ground (0 V)

of the equipment supplying the control voltages. To minimise

this risk, we suggest that all pieces of equipment be in close

proximity, and supplied from the same power outlet.

Fitting loudspeaker EQ cards

The CX163 is compatible with various popular installed-

sound loudspeakers; a single-channel loudspeaker equalisation

module may be fitted to either zone output or to the Utility

Output, to optimise the frequency response of the channel to

the loudspeaker type being used.

Please

check

the

Cloud

accessories) for makes and models of loudspeakers for which

EQ cards are available.

To install equalisation modules, first remove the top cover

from the CX163 (6 screws). The modules plug into the empty,

white 12-pin connectors on the main PCB. Note that as Zones

1 and 2 are stereo, they have two connectors each, while the

Utility Output has one.

CONNECTOR

CON5

CON4

CON7

CON6

CON3

The connectors on the main PCB have two notches on one

side only; these engage with lugs on the equalisation module's

mating connector to ensure correct orientation. Note that

unlike certain other Cloud units, it is not necessary to remove

any "bypass" jumpers to enable the EQ cards.

See the Appendix section "PCB jumper locations and

settings" at "PCB jumper location and settings" on page 17

for further details. Replace the top cover with the original

screws after fitting.

CX163 Installation and User Guide v1.1

website

(www.cloud.co.uk/

ZONE

Zone 1 Left

Zone 1 Right

Zone 2 Left

Zone 2 Right

Utility Output